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MEMORANDUM AND ORDER JOYNER, District Judge. At issue is the construction of disputed terms and phrases used in U.S. Patent No. 5,053,036 (âthe '036 patentâ), U.S. Patent No. 6,623,486 (âthe '486 patentâ), and U.S. Patent No. 7,128,744 (âthe '744 patentâ). The parties seek construction of eleven terms or phrases from the '036 patent, five terms or phrases from the '486 patent, and five terms or phrases from the '744 patent. Currently before the court are the partiesâ claim construction briefs in which they seek to have the Court construe various claim terms of those patents pursuant to Markman v. Westview Instruments, 517 U.S. 370 , 116 S.Ct. 1384 , 134 L.Ed.2d 577 (1996). We held a Markman hearing on July 12, 2007. Also before this Court is Defendantâs Motion for Partial Summary Judgment of Invalidity for indefiniteness which relates to claims 35 through 52 of the '036 patent. After considering the partiesâ positions, the Court construes the terms at issue and rules on Smith & Nephewâs Motion for Partial Summary Judgment of Invalidity of claims 35 through 52 of the '036 patent for indefiniteness, which presents issues that are intertwined with claim construction. The constructions adopted by the court are outlined below. For the reasons set forth below, Defendantâs Motion for *439 Partial Summary Judgment is GRANTED IN PART and DENIED IN PART. I. BACKGROUND A. Factual Background Plaintiff Synthes (U.S.A.) is the sole owner by assignment of the three patents in suit, which are directed to different types of bone plates or âbone plating systemsâ for repairing bone fractures. Synthes accuses Defendant Smith & Nephew, Inc. of infringing these patents in its manufacturing and selling of its âContour Plusâ and âPERI-LOCâ bone plates. The '086 Patent The '036 patent, which issued on October 1, 1991, is directed to a âPoint Contact Bone Compression Plateâ which, like other bone compression plates, is intended to stabilize and axially compress broken bones. Compression plates are usually constructed from biologically compatible materials such as titanium alloys, and are provided with screw holes to accept the bone screws, which attach the plate to the bone. At the time of implantation, the bone plate is positioned against the bone, spanning the fracture, and holes for the screws are pre-drilled into the bone. The screws are then inserted through the holes in the plate and threaded to the bone, thereby coupling the plate to the bone. Compression plates were generally known and used before the '036 patent, but according to Synthes, these âprior artâ bone plates suffered from the problem that they contacted the underlying bone over most of the area of the plateâs lower surface. This purportedly resulted in restricted blood circulation directly beneath the plate, which increased the chance of infection and slowed the healing process. An asserted advantage of the plate disclosed in the '036 patent is that it reduced bone contact by having a lower surface shaped with cutouts between the screw holes and a concave lower surface having a radius smaller than that of the bone. This structure creates âstudsâ on the outside edge of the plate and reduces the amount of the bottom surface that comes into contact with the bone. The '036 patent also directs that this reduced-contact compression plate could be provided with self-compressing screws, which result in the bone fragments being axially moved or compressed together. The 'i86 and '7kk Patents The '486 patent, which issued on September 23, 2003, and the '744 patent, which issued on October 31, 2006, are also directed to a âBone Plating Systemâ intended for use in stabilizing and axially compressing broken bones. The '744 patent is a continuation of the '486 patent, and thus they share virtually identical specifications. These patents reference prior art bone plates that make use of âlockingâ screws, which have threaded heads that mate with corresponding threading on the surface of the plate hole, thus establishing a fixed connection between the screw and bone plate. However, plates using only this type of screw âhave a limited capability to compress bone fragmentsâ ('486 patent, Col. 111. 58-59). Other plates in the prior art only made use of ânon-lockingâ screws, which were useful in bringing the broken pieces of bone closer together. However, non-locking screws are not capable of maintaining the same fixed connection as locking screws, and thus loosen over time due to the fact that body movements would cause the angular relationship between screw and bone plate to change. The '486 and '744 patents were directed to curing these deficiencies by providing for more than one type of screw hole in each bone plate. The '486 and '744 patents also describe features that reduce contact between the *440 plate and the bone. In particular, they provide for cut-out spaces in the lower surface of the plate and/or a trapezoidal shaped cross section at regions in the plate. B. Procedural Background On January 7, 2003, Synthes filed this suit against Smith & Nephew alleging infringement of the '036 patent, which had originally issued on October 1, 1991 with 15 claims. Smith & Nephew then filed a Request for Reexamination by the United States Patent & Trademark Office (USP-TO), which was granted on April 24, 2003. Synthes then amended claims 1 through 4, 6, and 8 through 14, and added claims 16 through 58. On April 24, 2007, the USP-TO issued a reexamination certificate indicating that these claims, in addition to claims 7 and 15, were patentable under the requirements of 35 U.S.C. § 112 . 1 On November 13, 2006, Synthes filed its Amended Complaint against Defendant, alleging infringement of the amended '036 patent as well as the '486 and '744 patents. Smith & Nephew filed its Answer and Counterclaims on December 5, 2006, requesting declaratory judgments that its products do not infringe the three patents-in-suit, that the three patents-in-suit are invalid, and that the '486 and '744 patents are unenforceable due to inequitable conduct during prosecution. II. ANALYSIS A. Legal Standard Claim construction is a matter of law to be determined by the court. Mark-man, 517 U.S. at 372 , 116 S.Ct. 1384 . It has long been recognized in patent law that âthe claims of a patent define the invention to which the patentee is entitled the right to exclude.â Innova/Pure Water, Inc. v. Safari Water Filtration Sys., Inc., 381 F.3d 1111, 1115 (Fed.Cir.2004). Generally, claim language is accorded its âordinary and customary meaning,â which is âthe meaning that the term would have to a person of ordinary skill in the artâ of the inventionâs field. Phillips v. AWH Corp., 415 F.3d 1303, 1312-13 (Fed.Cir.2005). However, our determination of the âordinary meaningâ of a particular claim term does not occur in a vacuum; rather, âwe must look at the ordinary meaning in the context of the written description and the prosecution history.â Medrad, Inc. v. MRI Devices Corp., 401 F.3d 1313, 1319 (Fed.Cir.2005). Because patentees often use terms idiosyncratically, where a claim termâs ordinary meaning is not readily apparent we must look to âthose sources available to the public that show what a person of skill in the art would have understood disputed claim language to mean.â Innova, 381 F.3d at 1116 . Those sources include âthe words of the claims themselves, the remainder of the specification, the prosecution history, and extrinsic evidence concerning relevant scientific principles, the meaning of technical terms, and the state of the art.â Id. The Federal Circuit has instructed that â[t]he sequence of steps used ... in consulting various sources is not important; what matters is for the court to attach the appropriate weight to be assigned to those sources in light of the statutes and policies that inform patent law.â Phillips, 415 F.3d at 1324 . Of particularly instructive value are the claims themselves, which âprovide substantial guidance as to the meaning of particular claim terms.â Vitronics Corp. v. Conceptronic, Inc., 90 F.3d 1576, 1582 (Fed. Cir.1996). In particular, âthe context in which a term is used in the asserted claim *441 term can be highly instructive.â Phillips, 415 F.3d at 1314 . Comparing the term at issue to other claims in the patent may be particularly useful, as claim terms are ânormally used consistently throughout the patent,â and thus, â[djifferences among claims can also be a useful guide in understanding the meaning of a particular claim.â Id. Claims must also be read âin view of the specification, of which they are a part.â Id. at 1315 . The Federal Circuit has stressed the importance of considering the specification, which it has called âthe single best guide to the meaning of a disputed term.â Vitronics, 90 F.3d at 1582 . The specification, in which the patentee provides a description of her invention, âmay reveal a special definition given to a claim term ... that differs from the meaning it would otherwise possess.â Phillips, 415 F.3d at 1316 . If such a âspecial definitionâ is indicated by the specification, âthe inventorâs lexicography governs.â Id. On the other hand, the specification may also âreveal an intentional disclaimer, or disavowal, of claim scope by the inventor,â in which case again âthe inventorâs intention, as expressed in the specification, is regarded as dispositive.â Id. The intrinsic evidence which aids us in construing claim terms also includes â the patentâs prosecution history. See id. at 1317 . This type of evidence âconsists of the complete record of the proceedings before the [Patent and Trademark Office (PTO) ] and includes the prior art cited during the examination of the patent.â Id. The prosecution history may be useful in claim construction analysis because, like the specification, it âprovides evidence of how the PTO and the inventor understood the patent.â Id. However, the Federal Circuit has cautioned against placing too much weight on the prosecution history, which ârepresents an ongoing negotiation between the PTO and the applicant, rather than the final product of that negotiation.â Id. Nevertheless, it may be particularly useful in determining âwhether the inventor limited the invention in the course of prosecution, making the claim scope narrower than it would otherwise be.â Id. (citing Vitronics, 90 F.3d at 1582-83 ); see also Chimie v. PPG Indus., Inc., 402 F.3d 1371, 1384 (Fed.Cir.2005) (âThe purpose of consulting the prosecution history in construing a claim is to exclude any interpretation that was disclaimed during prosecution.â). Finally, extrinsic evidence, such as expert testimony and dictionary definitions, may be considered in construing claim terms, though the Federal Circuit has warned that it is âless significant than the intrinsic record in determining the legally operative meaning of claim language.â Id. at 1318. It is within the courtâs discretion to consider extrinsic evidence; however, we must keep in mind its inherent flaws, as âit is unlikely to result in a reliable interpretation of patent claim scope unless considered in the context of the intrinsic evidence.â Id. at 1319. B. Disputed Claim Terms and Phrases 1. '036 Patent a. âLower surfaceâ The phrase âlower surfaceâ appears in every claim of the '036 patent. Each claim recites a plate having, inter alia, âa longitudinal axis, an upper surface, a lower surface,â and a âplurality of screw holes.â The basic disagreement between the parties as to the meaning of âlower surfaceâ is over whether it includes the area of the screw holes. Because the claims explicitly restrict the plate to having a âbone contact areaâ of less than five percent of the âtotal area of the lower surface of the plate,â whether the screw holes are included in *442 the âlower surfaceâ affects the outer limits of the plateâs âbone contact area.â Synthes asserts that the holes should be included and proposes that âlower surfaceâ should be construed as âthe undersurface of the plate.â Smith & Nephew seeks a narrower reading, proposing that the phrase be construed as âthe underside surface of the bone compression plate which does not include the area of any holes.â The plain meaning of the word âsurfaceâ implies the actual existence of physical matter, not its absence. See Websterâs New Riverside Dictionary II, p. 1165 (Riverside Pub. Co., ed.1994) (defining âsurfaceâ first as âthe exterior face of an objectâ and then as âa material layer constituting such an exterior faceâ). Indeed, it is far from clear how a holeâ which is defined by the absence of the material surrounding it â can have a âsurfaceâ if it has no physical existence. With this in mind, we examine the claims, specification, and prosecution history to determine if the patentee nevertheless understood âlower surfaceâ to include the screw holes in addition to the actual material of which the plate is made. First, the claim language and the surrounding context of the claims themselves provide little assistance in determining whether the patentee included the screw holes in the phrase âlower surface.â Synthes contends that the very fact that the claim language does not explicitly exclude the screw holes suggest that this omission was intentional. However, as Smith & Nephew points out, in the claims themselves the screw holes are enumerated separately from the upper and lower surfaces, rather than as an included part of those aspects of the bone plate. Contrary to Synthesâs position, this would imply that the screw holes were in fact not understood to be an implied part of the term âlower surface.â The specification similarly does not provide any evidence that the meaning of âlower surfaceâ was meant to include the screw holes. The Detailed Description makes reference to the âundersideâ of the plate in explaining that the âundersurface is shaped so as to permit contact with the bone only at points 23â (referring to accompanying Figure 3), and explains that the underside is arched âat a transverse curvature of smaller radius than that of boneâs outer contour.â These mentions of the term clearly do not indicate any intention in the specification to define the term âlower surfaceâ as including the holes. In fact, if anything, they only underscore that the âsurfaceâ was understood to be the physical manifestation of the plate that could be manipulated into particular shapes to reduce bone contact. The Summary of the Invention only reinforces this notion; it describes the plate as having âan elongated body having an upper surface and a lower surface [and] a plurality of screw holes traversing said body between said surfaces to attach the plate to a bone.â Again, the screw holes are listed separately from the âlower surfaceâ and appear to have been understood to be the absence of the plate material, traveling through the entirety of the plate and having no actual existence at the âsurfaceâ level. Finally, there is nothing in the prosecution history that evidences an understanding that âlower surfaceâ was understood to include screw holes. 2 We can find nothing in the intrinsic evidence to contradict the ordinary implication. of the *443 patent claims that the term âlower surfaceâ includes only that material which is actually physically present in the device. Accordingly, we adopt Smith & Nephewâs proposed construction for the term and find that âlower surfaceâ means âthe underside surface of the bone plate which does not include the area of any holes.â b. âStudsâ Like the phrase âlower surface,â the term âstudsâ appears in every independent claim of the '036 patent. 3 Each claim recites âstuds for bone contactâ that are formed on the sides of the lower surface of the plate and usually defined by the geometry of the plateâs underside. Plaintiff requests that the court construe âstudsâ as âthe portions along the side edges of the lower surface of the plate, defined by the combination of the open sections and the concave lower surface, that provide reduced contact areas.â Defendant, however, believes the term has a narrower meaning, arguing âstudsâ should be defined as âpointed tips located along the outer edges of a bone compression plate that extend from the lower surface of the plate and that permit only point contact.â As both parties acknowledge that the âstudsâ can only be formed on the outer edge of the undersurface of the plate, the essence of their disagreement about the meaning of the term is whether they are limited to âpointed tips ... [permitting] only point contact.â Beginning with the language of the claims themselves, the context of the surrounding claims fails to support Defendantâs assertion that âstudsâ must be limited to âpointed tips.â First of all, the only mention of the word âpointâ in the claims is in claim 7, which provides for âsupport studs attached to the lower surface of the plate at the sides of said lower surface, ... said studs providing bone contact at selected points along the sides of said plateâ (emphasis added). Though far from determinative of the issue, the fact that this limitation of the studs being at certain âpointsâ appears in one claim and not the others suggests that it was not intended to be a part of the general definition of the term. Furthermore, virtually every other independent claim containing the term âstudsâ has the limitation â added during the PTO reexamination requested by Smith & Nephew â that âthe studs for bone contact [be] less than 5% of the total area of the lower surface of the plate.â Limiting the studs in question to âpointed tipsâ that provide only âpoint contactâ would make this five-percent boundary on the stud-size completely superfluous. Thus, the context of the claims themselves strongly supports Plaintiffs construction and suggests that âstudsâ should not be limited to âpointed tips.â Turning to the specification, Defendant argues that the patentee defined studs as âpointed tipsâ by (1) titling the patent âPoint Contact Bone Compression Plate,â and (2) providing a description and drawings that show the studs as tapering to a point. In particular, Defendant notes that the specification, referring to accompanying Figures 3 and 4, explains that â[t]he undersurface of the plate is shaped so as to permit contact with the bone only at points 23â (emphasis added). According to Defendant, the plate shown in Figure 3 and referred to by the specification also appears to have studs that taper to a point where they meet the bone, and when combined with the written description, this is evidence that the patentee meant to disa *444 vow other ânon-pointedâ structures. Plaintiff responds by arguing that the portion of the Description cited by Defendant and its accompanying illustrations indicate only one particular embodiment of the invention, and a person skilled in the art would understand that the invention described would encompass more than just âpointedâ studs. Despite Defendantâs urging to the contrary, the specification provides little, if any, support for its proposed construction of the term âstuds.â First, the Federal Circuit has stated that importing limitations from a preferred embodiment to restrict the meaning of a claim term is a disfavored practice. See Taskett v. Dentlinger, 344 F.3d 1337, 1340 (Fed.Cir.2003) (âThough it is true that we must read a claim in light of the specification, rarely will we limit the claim to the preferred embodiments described in that specification.â). This is largely because â[t]he law does not require that an applicant describe in his specification every conceivable and possible future embodiment of his invention.â SuperGuide Corp. v. DirecTV Enters., 358 F.3d 870 , 880 (Fed.Cir.2004). Here, we cannot follow Defendant in reading the limitations from one particular embodiment into the meaning of the word âstudâ especially where, as we have noted, it contradicts the context of the surrounding claim language. Indeed, even the specification itself recites that the âarea of contact with the bone is reduced to the minimum practicable. Preferably this is less than 5% of the total area of the lower surface of the plate and most preferably less than 2%.â If the patentees intended to claim only studs limited to âpointed tips,â they surely would not have included this language, which implies that the stud size can be varied to achieve the âminimum practicableâ area of bone contact. Furthermore, even if we ignored the Federal Circuitâs teachings on use of the specification, the patenteesâ use of the word âpointâ in the description provides only weak support â at best â for Defendantâs construction. As an initial matter, we note that the word âpointâ itself is open to interpretation, as it can refer either to âa sharp or tapered endâ or âa position, place or locality.â See Websterâs, supra, p. 908. We agree that Figure 4 does appear to illustrate that âpoint 23â as dia-gramed indicates a âsharp or tapered endâ to the stud. However, in Figure 3, the number 23 is linked by a line to the bone, rather than the stud, suggesting that âpointâ refers to the âplace or localityâ on the bone where the âreduced contactâ is made (as opposed to making contact all along the bone, as some prior art plates did). This inference is further supported by Figure 5, which demonstrates another embodiment of the invention that is described as having âstuds.â Here, although it is not mentioned in the accompanying description, âpoint 23â again appears to refer in the illustration to the bone, rather than the stud. In light of a use of the word âpointâ that is at best ambiguous as to whether it refers to the size and shape of the stud, we cannot agree with Defendant that the patentees disavowed studs of other shapes and sizes in the specification. 4 Thus we turn to the prosecution history, which is cited selectively by both parties to support their respective constructions. During prosecution of the patent, the pat-entees originally used the term âcontact *445 elements,â rather than âstuds,â and their claims were rejected by the PTO. In response, the patentees changed that language to âindividual contact elements shaped to provide tips of minimum surface area.â Defendant argues that in making this choice, the patentees disclaimed any broader interpretation of the word âstuds.â However, Defendant ignores the fact that the âtips of minimum surface areaâ language was also dropped, and instead the patentees completely changed course and defined the studs by the geometry of the plate, as the claims now show. Thus, the evidence cited by Defendant is merely a part of the âongoing negotiationâ process with the PTO, and not an indication that the patentees intended to disclaim particular subject matter. Both Plaintiff and Defendant also point to diagrams from prior art patents showing bone plates with different types of bone contact features. The âKummer patent,â cited by Plaintiff, shows a bone plate with âa plurality of discrete, generally rectangular biologically absorbable spacers,â while the âJudet patent,â cited by Defendant, shows a bone plate with âstudsâ that appear to have pointed tips in one diagram. It is argued that each of these provided the basis for rejection of the patenteesâ claims at some point in the process, and thus the patent examiner understood âstudsâ to mean either having âpointed tipsâ or having non-pointed tips. However, we have a hard time finding support for either partyâs proposed construction in the cited portions of the prosecution history. Both parties refer mainly to particular Figures and illustrations in the prior art patents, and the cited language from the patent examiner is, at best, weak evidence of how he understood the term âstuds.â Thus, we find that the prosecution history is ambiguous as to the partiesâ proposed construction. Reading the term âstudsâ in light of the surrounding context of the claims themselves, the specification, and the prosecution history, we find that the patentees did not intend to limit the âstudsâ only to âpointed tipsâ which provide âpoint contact.â Accordingly, we adopt Plaintiffs construction and define the term âstudsâ to mean âthe portions along the side edges of the lower surface of the plate, defined by the combination of the open sections and the concave surface, that provide reduce contact areas.â c. âStuds for bone contact extending downwards from the lower surface of the plate and below the side wallsâ The phrase âstuds for bone contact extending downwards from the lower surface of the plate and below the side wallsâ appears in claims 35, 45, 53, and 55 of the '036 patent. Plaintiff asserts that this phrase should have its own construction and proposes that it be defined as âthe portions of the lower surface of the plate that extend below the side walls for contacting bone.â 5 This proffered construction largely repeats the plain language of the claim term itself, such that Plaintiff essentially asks that we define âstudsâ as âthe portions ... for contacting bone.â Yet Plaintiff has provided no reason why we should construe the term âstudsâ differently in this context than in other claims, and in fact simply references its own earlier arguments about how to con *446 strue âstuds.â We see no reason why the phrase âstuds for bone contact extending downwards from the lower surface of the plate and below the side wallsâ should be construed independently from other phrases using the word âstuds.â As in the other claims reciting âstuds,â the âstuds for bone contact extending downwards from the lower surface ... and below the side wallsâ are formed by a combination of the curved lower surface of the plate and âundercutsâ in the lower surface and serve the same purpose â providing reduced contact with the bone. Accordingly, we decline to construe this phrase. The meaning of âstudsâ that we have already outlined above applies equally to all the claims incorporating it. d. âThe intersection of surfaces formed by said cut out sections and the concave lower surface of the plate forming studs for bone contactâ Referring to certain âarcuate cut out sectionsâ addressed in greater detail below, claim 14 further describes âthe intersection of surfaces formed by said cut out sections and the concave lower surface of the plate forming studs for bone contact.â Plaintiff proposes that this phrase simply means âThe studs are formed along the side edges of the plate by the intersection of the cut out sections and the concave lower surface of the plate.â Consistent with its proffered construction of âstuds,â Defendant asserts that the âintersection of surfacesâ term in claim 14 should be defined 'as the âintersection of the cut out sections and the concave lower surface of the plate forming pointed tips located along the outer edges of a bone compression plate and that permit only point contact.â The parties agree that the disagreement over how to construe the phrase boils down to whether âstudsâ should be interpreted to mean âpointed tips ... that permit only point contact.â As we have already rejected that interpretation of the word âstuds,â we adopt Plaintiffs proposed plain-language construction of the term. Once again, this phrase also incorporates our adopted construction of the term âstudsâ as discussed above. e. âOpen sections along the side edges of the plate between the screw holesâ; âOpen sections lying between the elongated screw holesâ Independent claims 1 and 9 of the '036 patent recite plates having, inter alia, âopen sections along the side edges of the plate between the screw holesâ which, in combination with other features, form the âstudsâ for bone contact. 6 Claim 35 recites a plate having, inter alia, âopen sections lying between elongated screw holesâ along the side walls of the plate which, along with other plate features, also form studs for bone contact. 7 The parties agree *447 that these phrases should be construed as having the same meaning. Plaintiff proposes that they should be defined as âundercuts in the lower surface of the plate that extend transversely through a side edge or side wall of the plate between the screw holes.â Defendant proffers a construction for the two phrases of âarch-shaped openings along the outer edges of the bone compression plate located between the plateâs screw holes.â The main dispute between the parties over these phrases is whether âopen sectionsâ are limited to âarch-shaped openings.â Defendantâs construction also differs from Plaintiffs in that it does not explicitly require the âopen sectionsâ to be part of the lower surface of the plate. Plaintiffs broader construction finds support in the language of the claims themselves. As an initial matter, the adjective âarch-shapedâ does not appear in claims 1, 9, or 35 as a descriptor for the âopen sectionsâ terms in question. The adjectives âarch-shapedâ or âarcuateâ do appear, however, in numerous other places in the claims, which would imply that the âopen sectionsâ not having such a description were intended to have a broader meaning. Claim 14, for instance, recites a plate with âarcuate cut out sectionsâ analogous in geometric position to the âopen sectionsâ in claims 1, 9 and 35. 8 Furthermore, claims 19, 29, 38 and 48, which depend from independent claims with the unmodified term âopen sections,â claim plates with âat least one of the open sections having an arcuate shape.â Because claim terms are ânormally used consistently throughout the patent,â Phillips, 415 F.3d at 1314 , that the term âopen sectionsâ is given the added limitation of âarcuateâ in several dependent claims suggests that it was meant to have a broader meaning elsewhere. Claim 38 is particularly probative in this respect, as it depends from claim 35, which is one of the specific claims at issue. âThe presence of a dependent claim that adds a particular limitation raises a presumption that the limitation in question is not found in the independent claim.â Liebel-Flarsheim Co. v. Medrad, Inc., 358 F.3d 898, 910 (Fed.Cir.2004). This presumption is âespecially strong when the limitation in dispute is the only meaningful difference between an independent and dependent claim, and one party is urging that the limitation in the dependent claim should be read into the independent claim.â SunRace Roots Enter. Co. v. SRAM Corp., 336 F.3d 1298, 1303 (Fed. Cir.2003). The only difference between claims 35 and 38 is that the dependent claim adds the very limitation that Defendant seeks to read into the independent claim â that the open sections must be arch-shaped. Accordingly, Defendantâs proposed construction limiting âopen sectionsâ to only âarchâ or âarcuateâ shapes is contradicted by the claims themselves. Plaintiffs broader construction finds much greater support when the different claims are compared to each other. Defendant asserts, however, that in the specification of the '036 patent, the plate is described only as having âarchesâ and no other types of âopen sections.â Thus, according to Defendant, the patentee has disavowed other types of âopen *448 sectionsâ by failing to disclose them in the written description. We disagree. We have already noted that the Federal Circuit has cautioned against importing limitations from a preferred embodiment to restrict the meaning of a claim term. âWe do not import limitations into claims from examples or embodiments appearing only in a patentâs written description, even when a specification describes very specific embodiments of the invention or even describes only a single embodiment, unless the specification makes clear that âthe pat-entee ... intends for the claims and the embodiments in the specification to be strictly coextensive.â â JVW Enters., Inc. v. Interact Accessories, Inc., 424 F.3d 1324, 1335 (Fed.Cir.2005) (quoting Phillips, 415 F.3d at 1323 ). The specification of the '036 patent does not at all indicate that the claims and embodiments are meant to be âstrictly coextensive.â The Summary of the Invention describes only a plate with âa plurality of contact elements extending from the lower surface for contacting bone during attachment of the plate to the bone.â The part of the written description using the word âarchesâ explains just one way of achieving this: In a preferred embodiment, this is achieved by arching the underside of the plate 24 at a transverse curvature of smaller radius than that of the boneâs outer contour 25. In the longitudinal direction ... the underside of the plate is also shaped with a plurality of arches 26 between the screws 22. '036 patent, Col. 2 11. 61-67 (emphasis added). The specification makes clear that the arches are part of a particular embodiment, and never states that this embodiment is meant to be âcoextensiveâ with the claims â if anything, it states the opposite, referring explicitly to a âpreferred embodiment.â Thus, we cannot agree with Defendant that the specification compels the conclusion that âopen sectionsâ can only mean âarch-shaped openings,â especially when the language of the claims themselves contradicts such a reading. Finally, there is no evidence in the prosecution history that the patentees disavowed all but âarch-shapedâ openings. In fact, Defendant has not even attempted to argue that the prosecution history supports its construction. Accordingly, we agree with Plaintiff that âopen sectionsâ should not be construed to be limited only to âarch-shaped openings.â We turn next to whether the âopen sectionsâ must be on the âlower surfaceâ of the plate, an issue which Defendant did not address in its briefs. There is sufficient intrinsic evidence to support the conclusion that the âopen sectionsâ must be made in the lower surface of the bone plate. The claims themselves indicate that the studs are formed by an intersection of the open sections and the âconcave lower surfaceâ of the plate, which implies that the open sections must also be made on the lower surface. Furthermore, the specification explains that the '036 patent covers a bone plate with âa plurality of contact elements extending from the lower surface for contacting the bone .... â Accordingly, we adopt Plaintiffs proposed construction for âopen sections,â and find that this term is properly defined as âundercuts in the lower surface of the plate that extend transversely through a side edge or side wall of the plate between the screw holes.â f. âOpen sections forming concavities in the lower surfaceâ In addition to claiming âopen sections along the side edges of the plate between the screw holes,â claim 9 goes on to state âsaid open sections forming concavities in the lower surface of the plate .... â Defendant asserts that this language should *449 be construed identically to the previously construed âopen sectionsâ and again proffers the construction âarch shaped openings along the outer edges of the bone compression plate located between the plateâs screw holes.â Plaintiff acknowledges that the patenteeâs use of the modifier âforming concavities in the lower surface of the plateâ means that the âopen sectionsâ described by this term would be arch shaped, and asserts that the main dispute here is that Defendantâs construction does not require that the concavity be formed in the lower surface (P. Resp. p. 33). Plaintiff argues that the plain meaning of the phrase compels a construction of the phrase as simply âthe undercuts form concave spaces in the lower surface.â The phrase in question here must be read in the context of the surrounding claim language. This phrase clearly refers to the same âopen sectionsâ we discussed in construing the term âopen sections along the side edges of the plate between the screw holes,â because it immediately follows that term with âsaid open sections forming concavities in the lower surface of the plate.â The use of the word âsaidâ to connect these two phrases demonstrates that the patentee understood them to refer to the same âopen sectionsâ on the plate. We have already explained that the language of the claim mandates that the âopen sectionsâ be in the lower surface of the plate, and thus apply that reasoning equally to the term at issue here. Accordingly, we agree with Plaintiff that the âopen sections forming concavities in the lower surfaceâ must, for obvious reasons, be part of the lower surface, and that Defendantâs construction mysteriously omits this requirement. Plaintiffs proffered construction, however, is overly broad because it fails to recognize that the âopen sectionsâ must also be along the side edge of the plate and between the screw holes. The immediately preceding phrase to which âsaid open sections forming concavitiesâ refers makes clear that the open sections are âalong the side edges of the plate between the screw holes.â Furthermore, claim 9 goes on to state that âsaid open sections, in combination with the concave undersurface of the plate, form[ ] studs for bone contact along the side edges of the lower surface of the plate.â Adopting Plaintiffs rather broad construction would not be consistent with the surrounding claim language, which clearly contemplates that the open sections be located on the âside edgeâ of the plate and âbetween the screw holes.â Because both Plaintiffs and Defendantâs proffered constructions leave out important elements of the properly defined term, we must supply a definition that remedies their omissions. Accordingly, we find that âopen sections forming concavities in the lower surfaceâ is defined as âundercuts along the side edges of the lower surface of the plate which are located between the screw holes and which form arch-shaped spaces in the lower surface.â g. âArcuate cut out sectionsâ Unlike claims 1, 9, and 35, claim 14 does not contain any mention of âopen sections.â Instead, claim 14 recites âarcuate cut out sections between the [screw] holes, said arcuate sections forming concavities in the lower surface of the plate.â As with the claims reciting âopen sections,â claim 14 instructs that these âarcuate cut out sectionsâ intersect with the âconcave lower surface of the plateâ to form âstuds for bone contact.â There is no dispute that these âcut out sectionsâ must be arch-shaped. The main disagreement between the parties is over whether the âarcuate cut out sectionsâ must be located on the side edge of the plate. Defendant asserts *450 that the context of the surrounding claim language compels such an interpretation, and argues that the phrase âarcuate cut out sectionsâ should be construed as âarch shaped openings along the outer edges of the bone compression plate.â Plaintiff contends that nothing in the claim language limits the âarcuate cut out sectionsâ to a location on the outer edges of the plate, and proffers a construction for the phrase of âarch-shaped undercuts in the lower surface of the plate.â We note that Plaintiffs construction restricts the âcut out sectionsâ to the lower surface of the plate, while Defendantâs construction contains no such limitation. Thus, we must decide whether the âarcuate cut out sectionsâ recited by claim 14 must be located on the lower surface of the plate, and if so, whether they must be located on the side edges of the lower surface. As an initial matter, the cut out sections clearly must be located in the lower surface of the plate. After reciting a plate with âarcuate cut out sections between the [screw] holes,â claim 14 goes on to explain that these âarcuate cut out sections form[ ] concavities in the lower surface of the plate.â We can conceive of no explanation â and Defendant has not offered oneâ for how concavities could be formed in the lower surface if the âarcuate cut out sectionsâ were made in the upper surface or elsewhere on the plate. Mandating that the cut out sections be on the lower surface is also consistent with the specification, which makes clear that it is the bottom or underside of the plate which is shaped to have âcontact elements extending from the lower surface for contacting bone.â The only remaining question is whether the âarcuate cut out sectionsâ must be on the side or outer edge of the lower surface of the plate. We agree with Defendant that they must be so defined. Claim 14 recites a plate whose lower surface is âarched concavely, transversely to the longitudinal axis,â in line with the specificationâs indication that the plate is designed to contact the bone only along the edges in order to reduce plate-to-bone contact. On the plate recited by claim 14, the places of intersection between this transversely concave lower surface with the âarcuate cut out sectionsâ are where the âstuds for bone contactâ are formed. We have already found â and Plaintiff actually admitted in its briefs â that the âstudsâ must be located on the âside edgesâ of the plate. If the studs are, by definition, formed on the side edge of the lower surface, then the âarcuate cut out sectionsâ intersecting with the plateâs transverse concavity must also be located on the side edge of the lower surface. Were we to exclude the âside edgeâ limitation from the definition of âarcuate cut out sections,â then claim 14 would â up to the point at which the âstudsâ are mentioned â cover a plate with studs elsewhere on the lower surface, because they could be formed by âarcuate cut out sectionsâ made in the middle of the plate. Even by Plaintiffs own admission, however, such a plate was not claimed by the patentees because the âstudsâ must be formed on the side edge of the lower surface. The specification and prosecution history are of little help in determining whether the âarcuate cut out sectionsâ can be anywhere other than the side edges. We note, however, that the specification explains that a major disadvantage of prior art plates was that much (if not all) of their undersurface would contact and cause âfrictionâ with the bone, and thus inhibiting healing. In contrast with the prior art explained (and diagramed), the plates described in the specification of the '036 patent all appear to have their contact elements on the side edge of the lower *451 surface. While we must not import limitations from these specification embodiments into the claims, see Taskett, 344 F.3d at 1340 , they do provide support for what is already apparent in the language of claim 14 â that the âarcuate cut out sectionsâ must be located on the side edge of the plate to form the âstuds for bone contact.â Accordingly, we find that âarcuate cut out sectionsâ must be defined as âarch shaped undercuts along the outer edges of the lower surface of the plate.â h. âSelf-compressing screw holesâ; âself-compression screw holesâ Claims 26, 45, 53, and 55 recite a bone plate having, inter alia, a plurality of âself-compressingâ or âself-compressionâ screw holes, spaced apart along the longitudinal axis. The âself-compressing screw holeâ is not further defined or described in the claims themselves. The written description section of the specification, however, indicates that the plate âmay be constructed with one or more self-compressing screw holes of the type described in U.S. Pat. No. Re. 31,628 [the '628 patent].â Defendant argues that this disclosure specifically defines the term âself-compressing screw hole.â Borrowing language directly from the Summary of the Invention in the '628 patent, Defendant thus proffers a construction of âscrew holes formed with a slot that is elongated in the direction of the longitudinal axis of the plate so that the plate will be shifted relatively along this axis when the threaded securing screws are inserted there through and into the bone part.â Plaintiff contends, though, that the '628 patent merely provides an example of a self-compression screw hole, and that the court should not import limitations from an example in the specification into the claims. Plaintiff therefore argues that the term should be construed more broadly, as âa screw hole which is shaped such that, when it is engaged by the underside of the screw head, it will result in an axial displacement of the bone plate relative to the bone.â As we have already noted, the claim language itself provides no guidance as to the meaning of the term âself-compressing screw hole.â The specification, however, states that the invented bone plate may include one or more self-compression screw holes of a specific type â that is, the type disclosed in the '628 patent. An examination of the prosecution history reveals that the patent examiner determined that term âself-compressing hole,â which appeared in original claim 10, was indefinite. After that objection was made, the specific disclosure regarding the '628 patent was added to the specification. The patentees thus had the opportunity to define âself-compressing screw holeâ in a broader fashion, but chose to specifically define it by reference to the particular screw hole recited by the '628 patent. Plaintiff cannot now attempt to claim a broader definition after the inventors âlimited the invention in the course of prosecution, making the claim scope narrower than it otherwise would be.â Phillips, 415 F.3d at 1317 . Accordingly, we will adopt Defendantâs construction of âself-compression screw holesâ and âself-compressing screw holes.â Those terms will be defined as âscrew holes formed with a slot that is elongated in the direction of the longitudinal axis of the plate so that the plate will be shifted relatively along the axis when the threaded securing screws are inserted there through and into the bone part.â i. âBone contact areaâ Independent claims 35 and 45 further recite bone plates with âstuds for bone contactâ having a âbone contact area less than 5% of the total area of the lower *452 surface of the plate.â Defendant argues that the term âbone contact areaâ is insolubly ambiguous and thus runs afoul of the definiteness requirement found in 35 U.S.C. § 112 ¶ 2. 9 As a result, Defendant has moved for partial summary judgment of invalidity of claims 35 through 52, all of which incorporate the term. 10 Plaintiff asserts that a person of ordinary skill in the art would understand the term âbone contact areaâ to mean âthe area defined by the bottom surface area of the âstuds for bone contact.â â Because the term is amenable to construction, Plaintiff argues, it is not indefinite and thus claims 35 through 52 are not invalid. Because 35 U.S.C. § 282 accords a statutory presumption of validity to a patent, a challenger to that patent bears the burden of proving by clear and convincing evidence that a patent is invalid. Monsanto Co. v. Scruggs, 459 F.3d 1328, 1336-37 (Fed.Cir.2006). âDetermination of claim indefiniteness is a legal conclusion that is drawn from the courtâs performance of its duty as the construer of patent claims.â Exxon Research & Engâg Co. v. U.S., 265 F.3d 1371, 1376 (Fed.Cir. 2001). That determination is made by inquiring into whether âthe claims at issue are sufficiently precise to permit a potential competitor to determine whether or not he is infringing.â Id. However, a claim is not indefinite âmerely because it poses a difficult issue of claim construction.â Id. Rather, if the meaning of a claim âwould reasonably be understood by persons of ordinary skill [in the art] when read in light of the specification,â the claim is not invalid due to indefiniteness. Energizer Holdings, Inc. v. Intâl Trade Commân, 435 F.3d 1366 , 1371 (Fed.Cir.2006). Accordingly, as we do with the other claims at issue in this case, we apply ordinary claim construction principles to determine how a person of ordinary skill in the art would understand the term âbone contact area.â See Datamize, LLC v. Plumtree Software, 417 F.3d 1342, 1348 (Fed.Cir.2005) (âIn the face of an allegation of indefiniteness, general principles of claim construction apply.â); see also Phillips, 415 F.3d at 1314-18 (outlining the types of evidence to be considered in claim construction and the weight to be accorded to each). We agree with Plaintiff that the term âbone contact areaâ refers to a measurable, structural feature of the bone plate and thus is not âinsolubly ambiguous.â Beginning with the claims themselves, the term âbone contact areaâ clearly refers to the âstuds for bone contact,â and not the hypothetical bone on which the plate is to be attached. Independent claims 35 and *453 45 specify that those studs are formed as a result of the geometry of the plate. The âlower surfaceâ of the plate is first arched transversely, so that the plate would only contact the bone on its outer edges (as we have already discussed in construing âstudsâ). Next, portions of the side edge of the lower surface are cut out (as we have already discussed in construing the various iterations of âopen sectionsâ) so that the âstudsâ remain as the only part of the plate designed to make contact with the bone â this results in the âreduced contactâ that is the crucial goal of the invention. Nowhere in claims 35 or 45 does the '036 patent refer to how the plate is to be implanted on the bone, or otherwise reference the hypothetical bone to which the plate might be attached. Those claims are thus directed only to the structure of the plate, and so they imply that the âbone contact areaâ is a measurement of the plate rather than of the portion of the bone to which it is affixed. The manner in which the geometric features of the plate are defined also indicates that it is the underside of the studs that is designed to make contact with the bone, as the studs are essentially carved out of the âlower surfaceâ that would otherwise be contacting the bone. The specification also indicates that the âbone contact areaâ is the area of the plate designed to touch the bone. Referring to figures 3 and 4 accompanying the specification, the written description describes how the lower surface of the plate is curved and shaped so that âthe only contact between plate and bone is at points 23.â Again, the specification indicates that it is the underside of the plate which is shaped and carved out so that it is only the studs that make contact with the bone. The diagrams in figures 3 and 4 support the inference that it is thus the underside of the studs that make contact with the bone, as the shaded areas indicating the bone-plate contact (at points 23) are directly beneath the underside of each stud. The written description goes on to state: âThe area of contact with the bone is reduced to the minimum practicable. Preferably this is less than 5% of the total area of the lower surface of the plate and most preferably less than 2%.â Having immediately followed an explanation of how the studs are formed by the geometry of the plate, âarea of contactâ here clearly refers to a portion of the plate, not the bone. Finally, Plaintiff produced expert testimony by a person skilled in the art of bone plate design and development that supports its construction of the term âbone contact area.â Plaintiffs expert opined that, in light of the rest of the patent including the specification, that term clearly referred to the bottom surface area of the studs formed as a result of the plate geometry. He also attested that as it constituted a physical geometric feature of the bone plate, the âbone contact areaâ provided definitive limitations as to what is claimed by the patent. While we do not give as much weight to this testimony as we do to other sources of evidence, it does support what the intrinsic evidence already indicates â that the term âbone contact areaâ is meant to be understood as the bottom surface area of the studs for bone contact. Defendant also produced expert testimony by a person skilled in the relevant art opining that the term âbone contact areaâ is insolubly ambiguous because there is no standard way to measure the area of contact between the plate and the bone, and no method of measurement is provided in the patent. Defendantâs expert, however, erroneously assumed that the term âbone contact areaâ meant that the bone had to be measured, rather than the plate. As we have already discussed, when read in *454 the context of the surrounding claim language and the specification, âbone contact areaâ clearly refers to the part of the plate itself that is designed to contact the bone. That is a measurement that is not victim to the subjectivity of individual surgeons using the device about which Defendantâs expert warned. Because it is supported by the intrinsic evidence and expert testimony by a person skilled in the art, we will adopt Plaintiffs construction of the term âbone contact area.â The term is thereby construed as âthe area defined as by the bottom surface area of the studs for bone contact.â Accordingly, because it is capable of construction, the term is not indefinite under 35 U.S.C. § 112 . Defendant has not carried its burden in proving that the term makes the claims incorporating it invalid, and thus Defendantâs Motion for Summary Judgment of invalidity as to this term is DENIED. j. âLess than about 2%â Claims 36, 54, and 56 further limit independent claims 35, 53, and 55, respectively by reciting that the âbone contact areaâ or the âstuds for bone contactâ must be âless than about 2%â of the lower surface of the bone plate. Though this term was not initially identified for construction, Defendant has moved for summary judgment of invalidity of the three claims incorporating it on the grounds that the term is indefinite. Defendant argues that there is no way of determining what numerical values would fall with the ambit of âabout 2%,â there is also no way of knowing what percentages are âless thanâ that amount, and thus no way of knowing whether a competing product is infringing. The function of the claims is to delineate the scope of the invention, and thus âthe purpose of the definiteness requirement is to ensure that the claims delineate the scope of the invention using language that adequately notifies the public of the patenteeâs right to exclude.â Datamize, 417 F.3d at 1347 . In other words, claims must be âsufficiently precise to permit a potential competitor to determine whether or not he is infringing.â Morton Intâl, Inc. v. Cardinal Chem. Co., 5 F.3d 1464 , 1470 (Fed.Cir.1993). We agree with Defendant that âless than about 2%â does not sufficiently inform a potential competitor about what would infringe claims 36, 54, and 56 of the '036 patent. The ratio of the studs or bone contact area to the area of the plateâs lower surface is a crucial aspect of the invention in the '036 patent, which is directed specifically towards a plate that minimizes bone contact. The phrase âless than about 2%â is clearly directed at that essential feature, yet it is impossible to tell exactly what constitutes âabout 2%.â For example, a competitor whose plate has a bone contact area-to-lower surface area ratio of 2.5%, or even 3% or 4%, would not know if he is infringing because there is no indication how much above the 2% threshold the claims at issue actually include. There is no evidence at all in the intrinsic evidence that the word âabout,â when applied to the ratio of studs-to-plate surface, has an accepted meaning. Nor does it appear that some type of statistical deviation would apply where a tangible device such as the bone plate here is concerned. Plaintiff has also offered no explanation or testimony by experts or the patentees as to why the words âabout 2%â would be used, especially when other claims in the '036 patent (specifically claims 6 and 58) and the written description in the specification omit the vague âaboutâ and simply recite a ratio of âless than 2%.â Accordingly, because it does not âadequately notifiy] the public of the patenteeâs right to exclude,â Datamize, 417 F.3d at 1347 , the term âless than about 2%â is indefinite. Claims 36, 54, and 56 *455 are thus invalid for failing to satisfy the definiteness requirement of 35 U.S.C. § 112 . Defendantâs Motion for Summary Judgment of invalidity as to this particular term is GRANTED. 2. '486 Patent a. âSecond holeâ; âSecond plate holeâ Independent claims 1, 14, 16, 17 and 18 of the '486 patent each recite a bone plate having: an upper surface; a bone-contacting surface; at least one first hole passing through the upper and bone-contacting surfaces and having a thread; and at least one second hole passing through the upper and bone-contacting surfaces '486 Patent, Cols. 7-10. The parties disagree as to the meaning of the term âsecond hole.â 11 Plaintiff seeks a broad construction of the term and asserts that it should be defined as âa second type of hole different from the first type.â Defendant, however, argues that âsecond holeâ should be interpreted as meaning âa hole that is not threaded (i.e. does not have any threads).â The parties agree that âsecond holeâ cannot have the same meaning as the phrase âfirst hole.â 12 Our task, then, in construing this term is to determine whether the âsecond holeâ on each claimed bone plate must be non-threaded. The language of the claim itself is somewhat ambiguous as to whether the âsecond holeâ must be non-threaded. The words ânon-threadedâ or ânon-lockingâ do not appear anywhere in the relevant claims. Plaintiff argues that because the claims specifically say the first hole must be âthreaded,â the absence of a similar ânon-threadedâ descriptor when reciting the âsecond holeâ indicates that the patentee understood the term to include more than simply non-threaded holes. Conversely, Defendant points out that the claims also recite âfirstâ and âsecondâ screws that correspond to the first and second holes, respectively, and that the âsecond screwâ has a non-threaded head. The âfirst screwâ in each claim is described as having both a threaded shaft and a threaded head (for locking the screw into the threaded hole). The second screw, by contrast, is described as having only âa shaft with a thread for engaging bone and a head .... â According to Defendant, by reciting a threaded shaft but a head without any description, the patentee was describing the âsecond screwâ as having threads only on the shaft, leaving the head non-threaded. Following Defendantâs reasoning, this would mean that the corresponding âsecond holeâ would also not be threaded, so that it could accept a screw with a non-threaded head. Without further support, Defendantâs argument regarding the language describing the âfirst and second screwsâ is mere speculation, however, and provides little help in understanding whether the second hole must be non-threaded. Plaintiffs observation that the word ânon-threadedâ is conspicuously absent from the claims would seem to apply equally to the recitation of the âsecond screw,â and the fact that the claim language is silent as to the head of the second screw only reinforces the ambiguity about the âthreadednessâ of the second hole. Although the claim language itself does not answer the question of whether the *456 âsecond holeâ must be non-threaded, the specification strongly contradicts Plaintiffs arguments for a broad construction of the term. By asserting that it is not required that the second holes be non-threaded, but that they need only be different from the first, threaded holes, Plaintiff in essence argues that the second holes can simply be a different type of threaded hole. The specification makes clear, however, that the patentees intended to invent a bone plate with the stated advantage of combining threaded and non-threaded holes. As an initial matter, we note that the specification makes clear that screws with a threaded head are deemed âlocking screws,â because the head mates with the screw hole to fasten the plate to the screw. 13 Similarly, screws with a won-threaded head generally are ânon-locking screws.â 14 The specification indicates that the bone plate system covered by the '486 patent was intended to accommodate both locking and non-locking screws. For instance, at the very outset of the specification, the âField of the Inventionâ section states that â[t]he present invention is directed to a bone plating system for fracture fixation, and in particular to a system including a bone plate having plate holes for both locking and non-locking screws.â '486 patent, Col. 1, 11. 10-12. Next, in the âBackgroundâ section, the '486 patent explains the âdeficiencies of the prior artâ that the invention seeks to overcome, and notes that at least one of the prior art plate systems did not obtain âthe long term benefits of combining non-locking screws with locking screws.â The Description section of the specification also supports a finding that the paten-tees intended the two types of holes to be âthreadedâ and ânon-threaded.â Before any specific embodiments are explained, the Description section begins by stating âThe bone plating system according to the present invention includes a bone plate, non-locking screws, and locking screws.â This supports Defendantâs interpretation of the claim language regarding the âfirst screwâ and âsecond screw,â because it separately enumerates two distinct types of screws that are to be used with the invention. As the claim language (as well as the Summary of the Invention in the specification) makes clear, those two types of screws are to âremain seated in their respective holes for substantially as long as the bone is implantedâ (emphasis added). That language implies that, just as the locking screw must have a corresponding threaded hole (so that the threaded head can mate with the threaded hole), the non-locking screw must have a corresponding non-threaded hole that is differentiated from the threaded, locking hole and screw combination. Furthermore, every single embodiment disclosed in the Description contains both threaded and non-threaded holes for receiving locking and non-locking screws, respectively. We are aware that in general we must not import limitations from these specification embodiments into the claims, see Taskett, 344 F.3d at 1340 , particularly where the specification states that other embodiments may be devised by persons skilled in the art. However, the specifica *457 tion of the '486 patent also states that âthe appended claims are intended to cover all such modifications and embodiments which come within the spirit and scope of the present invention.â As we have already noted, the intended âspirit and scopeâ of the '486 patent is limited to a bone plate system that maximizes the advantages gotten from combining locking and non-locking screws and screw holes. The claims cannot be interpreted as exceeding that purview â particularly, we note, where it is the stated advantage over the prior art. None of the embodiments disclosed in the specification exceed that scope, as they all combine locking with non-locking screw holes. Thus, the fact that those embodiments all describe the âsecond holeâ as some type of non-threaded hole simply supports what is made apparent by the rest of the specification â that the paten-tees understood the âsecond holeâ to be a non-threaded hole that could accept a non-locking screw. 15 In sum, we find that the claims, when read together with the specification, indicate that the patentee intended the âsecond holesâ to be non-threaded. Accordingly, we adopt Defendantâs construction for the term, and define âsecond holeâ as âa hole that is not threaded (i.e. does not have any threads).â b. âHead portion configured and dimensioned to conform to a meta-physis of boneâ; âShaft portion configured and dimensioned to conform to a diaphysis of boneâ The bone plate directed by independent claims 1, 14, 16, 17 and 18 of the '486 patent is also described as having âa head portion configured and dimensioned to a metaphysis of a boneâ and a âshaft portion configured and dimensioned to conform to a diaphysis of a bone.â 16 The parties say they disagree about the meaning of âconfigured and dimensioned to conformâ in each of these phrases from the claims, but their proposed constructions do nothing to clarify what the patenteeâs, intention was, or how a person skilled in the art would understand the disputed language. Plaintiff asserts that âhead portion configured and dimensioned to conform to a metaphy-sis of a boneâ should be construed as âthe head portion is shaped to correspond generally to the contours of the metaphysis of the bone.â Defendant, meanwhile, asserts that the same phrase should be construed as âthe end of the bone plate that is curved to fit the contours of the metaphysis of the bone.â The crux of the proposed definitions is that Plaintiff believes âconfigured and dimensioned to conformâ is properly construed as âshaped to correspond generallyâ while Defendant believes it should mean âcurved to fit.â A court need not construe every single disputed term, and we decline to do so here. âClaim construction is a matter of resolution of disputed meanings and technical scope, to clarify and when necessary to explain what the patentee covered by the claims, for use in the determination of infringement.â U.S. Surgical Corp. v. Ethicon, Inc., 103 F.3d 1554, 1568 (Fed. Cir.1997). Neither party has explained how its proffered definition would be any *458 clearer for a juror than the plain language of term in the claim itself. Plaintiff argues that the term must allow for the plateâs user to adapt or bend the plate for implantation onto specific, uniquely shaped bones. But the plain meaning of the terms already allows for that phenomenon, because âconfigured and dimensioned to conformâ is directed to how one skilled in the art would make the plate, not how a hypothetical surgeon would later manipulate it in individual cases. Plaintiff has not explained why the plain language would prevent later âadaptationâ to unique bone structures, and replacing those words with âshaped to correspond generallyâ would do nothing to further clarify for the jury what the claims cover â in fact, the ambiguity of âgenerallyâ may actually make its meaning less clear. Unlike Plaintiffs proposed construction, Defendantâs proffered definition of âcurved to fit the contoursâ at least appears in the patent itself. These words are taken directly from the specification, in which the description of two particular embodiments uses the words âcurved to fit the contoursâ when describing the head portion of the plate. However, in no part of the specification do the patentees state that âconfigured and dimensioned to conformâ is specifically defined as âcurved to fit the contoursâ of the bone. We have already noted that without more evidence to support it, we will not import selected portions of descriptions of specific embodiments into the claims. See Taskett, 344 F.3d at 1340 . Furthermore, even if we were to follow Defendantâs strict use of the specification and accompanying figures, we would end up describing the shaft portion â which the illustrations clearly show to be straight â as âcurved.â Claim terms are ânormally used consistently throughout a patent,â Phillips, 415 F.3d at 1314 , and thus replacing âconfigured and dimensioned to conformâ with âcurved to fitâ in all instances would lead to strange results where the shaft portion of the plate is concerned. Defendantâs proposed definition of âcurved to fit,â then, may actually confuse the jury more than the plainly adequate âconfigured and dimensioned to conform.â The specificationâs description of the plate head as âcurvedâ or âtwistedâ is simply one example of how the plate can be âconfigured and dimensioned to conform.â The plain language of the claim clearly describes the âfittednessâ of the plate to the bone contours â a feature with which Defendant seems particularly concerned â and neither Plaintiffs nor Defendantâs proposed constructions would further clarify it for the jury. Accordingly, we give no construction to the phrases âhead portion configured and dimensioned to conform to a metaphysis of a boneâ and âshaft portion configured and dimensioned to conform to a diaphysis of a bone.â c. âTrapezoidal shaped cross sectionâ Claim 8 of the '486 patent and claims 12 and 39 of the '744 patent are directed to a bone plate having, inter alia, a âtrapezoidal shaped cross-sectionâ in regions between the plate holes. The specifications of the '486 and '744 patents explain that this feature helps minimize contact between the plate and the bone, which in turn reduces damage to blood supply and facilitates plate removal. In describing embodiments which make use of this feature, the specification of each patent refers to Figure 11, which provides an illustration of a âtrapezoidal cross-sectionâ of the bone plate between the holes. The parties essentially disagree over the relevance of this illustration in defining âtrapezoidal cross-section.â Defendant submits that it must be defined as âhaving the shape shown in the cross-hatched portion of Figure 11â â in other words, that it must match the illustration. Plaintiff, however, *459 asserts that the illustration is but one example of what a âtrapezoidal shaped cross-sectionâ might look like, and offers that the term should be defined as âa cross-section with a shape similar to the crosshatched portion of Figure 11.â Once again, the Defendant seeks to import a description of one particular embodiment to restrict the meaning of a claim term. However, the specification does not state that the specific embodiments and claim terms are coextensive. See JVW Enters., 424 F.3d at 1335 (noting that specific embodiments should not be read as coextensive with the claims unless specifically prescribed by the patentee). In fact, the specification of each patent states that â[w]hile it is apparent that the illustrative embodiments of the invention herein disclosed fulfill the objectives stated above, it will be appreciated that numerous modifications and other embodiments may be devised by those skilled in the art.â Indeed, as Plaintiff points out, the term âtrapezoidal shaped cross sectionâ was understood by the patent examiner to include trapezoidal shapes similar to those found in other bone plates. Thus, one skilled in the art would not believe the âtrapezoidal cross-sectionâ recited in the claims is restricted to only that shape shown in Figure 11. Accordingly, we adopt Plaintiffs construction of the term, and find that âtrapezoidal shaped cross-sectionâ is defined as âa cross-section with a shape similar to the cross-hatched portion of Figure 11.â d. âAn edge inclined at an angle to the upper surface toward the bone-contacting surface for displacing the bone plate when engaged by the head of a second bone screwâ Claim 9 of the '486 patent recites a bone plating system in which at least one of the second holes âhas an edge inclined at an angle to the upper surface toward the bone-contacting surface for displacing the bone plate when engaged by the head of a second bone screw.â Plaintiff proffers a construction for this phrase of âan angled ramp or oblique portion in the second hole that is sufficient to provide for displacement of the bone when engaged by the head of a second bone screw.â In other words, Plaintiff asks the court to construe âan edge inclined at an angle to the upper surface toward the bone-contacting surfaceâ as âan angled ramp or oblique portion in the second hole sufficient to provide for [bone] displacement.â Defendant, however, contends that the claim language requires no construction, and we agree. The Federal Circuit has noted that â[i]n some cases, the ordinary meaning of claim language as understood by a person of skill in the art may be readily apparent even to lay judges, and claim construction in such cases involves little more than the application of the widely accepted meaning of commonly understood words.â Phillips, 415 F.3d at 1314 . With the phrase in question, we are presented with such a case. Claim 1, from which claim 9 depends, already explains that the âsecond holeâ passes through the upper and bone-contacting (i.e. lower) surfaces. Thus, the plain language of claim 9 indicates that the âinclined edgeâ must be in the screw hole, extending from the upper to the lower surface. Plaintiffs proposed construction, which is taken directly from the description of a specific embodiment in the specification, merely explains this feature using other words and is not inherently clearer than the claim language. As we have already explained, we are reluctant to import language used to describe a specific embodiment into the claims when that embodiment is not clearly meant to be coextensive with the claims. There is no evi *460 dence in the specification or prosecution history that indicates the claim language should have anything other than its plain meaning. Accordingly, we decline to construe the phrase âan edge incline at an angle to the upper surface toward the bone-contacting surface for displacing the bone plate when engaged by the head of a second bone screw.â 3. '744 Patent 17 a. âA non-perpendicular angular orientation with respect to the plane defined by the upper surface of the plateâ Claims 27 and 51 of the '744 patent, which depend from claims 24 and 50, respectively, recite a bone plate wherein at least one of the holes on the head portion of the plate has a ânon-perpendicular angular orientation with respect to the plane defined by the upper surface of the plate.â According to the specification, the purpose of this feature is to arrange the locking screws, when attaching the plate to the bone, in a way that forces them to converge toward one another. This aids in affixing the plate to the bone. Plaintiff urges that the âangular orientationâ of the hole must be essentially determined on a hole-by-hole basis, and thus proffers a construction of âforming an angle that is not at a right angle to the upper surface of the plate at the hole.â Defendant contends that there is no support in the patent for adding the words âat the hole,â and maintains that the claim language should simply be given its ordinary and customary meaning. On its face, the claim language makes clear that the angular orientation of the hole is to be defined in relation to plane defined by the upper surface of the plate. Nowhere in the claims themselves did the patentee narrow that benchmark to only those parts of the upper surface that were âat the hole,â and we cannot find anything else in the context of the claims to support Plaintiffs assertion that such a restriction should exist. The fact that the patentees had the opportunity to provide such a restriction but did not do so implies that they did not intend to include it. Plaintiff argues, however, that the pat-entees specially defined the way the angular orientation is measured in the specification. Several of the drawings accompanying the written description depict angular measurements of numerous screw holes, and Plaintiff contends that they show that these measurements occur relative to the upper surface of the plate at the boundary of each hole. But as even Plaintiff acknowledges, the Federal Circuit has warned that âdrawings [depicting the preferred embodiment] are not meant to represent âtheâ invention or to limit the scope of coverage defined by the words used in the claims themselves.â Var co, L.P. v. Pason Syst. USA Corp., 436 F.3d 1368, 1375 (Fed.Cir.1376). The drawings to which Plaintiff refers merely provide examples of how the an- *461 guiar orientation may be measured with respect to the upper surface of the plate. The rest of the specification â including the written description â is silent on whether the plane providing the basis for measuring angular orientation must be considered only at the relevant screw hole. Thus, we find no support for Plaintiffs reading of such a restriction into the claims. Accordingly, we decline to construe the phrase ânon-perpendicular angular orientation with respect to the plane defined by the upper surface of the plate.â The plain and ordinary meaning of the phrase is clear and descriptive, and the intrinsic evidence does not indicate that the patentee intended to alternatively define it. b. âHead portion lies in a plane different from the plane in which the shaft portion liesâ Claims 10 and 38 of the '744 patent, which depend from claims 1 and 24, respectively, further recite a bone plate wherein âthe head portion [of the plate] lies in a plane different from the plane in which the shaft portion lies.â Plaintiff asserts that this phrase should be construed as âthe head portion and shaft portion are in different planes.â Defendant, however, contends that the ordinary meaning of this term is clear and it does not need to be construed, and we agree. Plaintiffs proposed âinterpretationâ has no support in the intrinsic evidence. It is based almost entirely on Plaintiffs own speculation about what Defendant intends to argue at the infringement phase, and not on what a person skilled in the art would understand the claim term to mean. In fact, Plaintiff has not even explained how its proffered construction differs from the claim language itself, since it simply drops the word âliesâ without even a hint as to how that clarifies its meaning. The meaning of the phrase âthe head portion lies in a plane different from the plane in which the shaft portion liesâ has a plain and ordinary meaning, and there is no evidence indicating that the patentees meant to provide it with a special definition. Accordingly, we will not construe this claim term. C. Conclusion Having considered the papers submitted by the parties and the arguments of counsel during the Markman hearing, the court interprets the disputed claim terms as set forth above and as summarized in the order following this memorandum. Furthermore, Defendantâs Motion for Partial Summary Judgment of Invalidity is GRANTED IN PART and DENIED IN PART. The term âbone contact areaâ is amenable to construction and thus is not indefinite. Accordingly, Defendantâs Motion with respect to that term is DENIED. However, the term âless than about 2%â is insolubly ambiguous and thus fails the definiteness requirement of 35 U.S.C. § 112 . Accordingly, Defendantâs Motion with respect to that term is GRANTED and claims 36, 54, and 56 of the '036 patent are invalid as a matter of law. An order follows. ORDER AND NOW, this 4th day of February, 2008, upon consideration of the submissions of the parties and for the reasons stated in the accompanying memorandum, it is hereby ORDERED that the Motion is GRANTED IN PART and DENIED IN PART. Judgment as a matter of law is hereby ENTERED in favor of Defendant as to the '036 Patentâs use of âless than about 2%,â and claims 36, 54 and 56 of the '036 Patent are invalid as a matter of law. Defendantâs Motion for Summary Judg *462 ment of Invalidity of any claims using the term âbone contact areaâ is DENIED. It is further ordered that the claim construction regarding the disputed language in the patent is as follows: CLAIM LANGUAGE_CONSTRUCTION âLower surfaceâ the underside surface of the bone compression plate which does not include the area of _any holes_ âStudsâ the portions along the side edges of the lower surface of the plate, defined by the combination of the open sections and the concave lower surface, that provide reduced contact _areas_ âStuds for bone contact extending down- (no separate construction necessary) wards from the lower surface and below the side wallsâ_ âThe intersection of surfaces formed by the studs are formed along the side edges of said cut out sections and the concave lower the plate by the intersection of the cut out surface of the plate forming studs for bone sections and the concave lower surface of the contactâ_plate_ âOpen sections along the side edges of the undercuts in the lower surface of the plate plate between the screw holesâ; âOpen that extend transversely through a side edge sections lying between elongated screw or side wall of the plate between the screw holesâ_holes_ âOpen sections forming concavities in the undercuts along the side edges of the lower surfaceâ lower surface of the plate which are located between the screw holes and which form _arch-shaped spaces in the lower surface_ âArcuate cut out sectionsâ arch shaped undercuts along the outer edges _ of the lower surface of the plate_ âSelf-compressing screw holesâ; screw holes formed with a slot that is elon-âSelf-eompressed screw holesâ gated in the direction of the longitudinal axis of the plate so that the plate will be shifted relatively along the axis when the threaded securing screws are inserted there through _and into the bone part_ âBone contact areaâ the area defined by the bottom surface area _of the studs for bone contact_ âLess than about 2%â_(Indefinite)_ âSecond holeâ; âSecond plate holeâ a hole that is not threaded (i.e. does not have _any threads)_ âHead portion configured and dimensioned to (no construction necessary) conform to a metaphysis of a boneâ_ âShaft portion configured and dimensioned to (no construction necessary) conform to a diaphysis of a boneâ_ âTrapezoidal cross sectionâ a cross-section with a shape similar to the _cross-hatched portion of Figure 11_ âAn edge inclined at an angle to the upper (no construction necessary) surface toward the bone-contacting surface for displacing the bone plate when engaged by the head of second bone screwâ_ âA plurality of arched cutouts extending a plurality of undercuts that have a shape transverse to the longitudinal axisâ like an arch, and that extend in a direction transverse to the longitudinal axis *463 CLAIM LANGUAGE CONSTRUCTION âThinner cross section in regions between the thickness of the cross-section of the plate the plate holesâ at a region between the holes is less than _other regions of the plate_ âA non-perpendicular angular orientation (no construction necessary) with respect to the plane defined by the upper surface of the plateâ_ âHead portion lies in a plane different from (no construction necessary) the plane in which the shaft portion liesâ 1 . Only original claim. 5 was cancelled as a result of the reexamination. 2 . Synthes points to a portion of the prosecution history seeming to indicate that the patent examiner understood "under side of the plateâ to be synonymous with "lower surface.â However, there is no disagreement that "lower surfaceâ refers to the underside of the plate, and this sheds no light on the inclusion or exclusion of the screw holes. 3 . The only exception is Claim 15, which describes removable âclips" rather than âstuds.â 4 . For the same reason, the title of the patent â "Point Contact Bone Compression Plateâ â provides only marginal support for Defendantâs position. Though Defendant urges that the title indicates that the studs are "pointed," the use of the word "point contactâ could also refer to the fact that the plate claimed by the '036 patent is intended to make contact only at certain places on the bone. 5 . Strangely, Plaintiff only suggests that the term in claim 35 requires construction, though it is used almost identically in claims 45, 53, and 55. However, Plaintiff has not explained why the term means something different in claim 35, particularly in light of the Federal Circuit's instructions that claim terms are "normally used consistently throughout the patent,â Phillips, 415 F.3d at 1314 . 6 . Specifically, Claim 1 recites that the lower surface of the compression plate, "being arched concavely transversely to the longitudinal axis of the plate, in combination with open sections along the side edges of the plate between the screw holes, said open sections, with the concave lower surface of the plate, form[s] studs along the side edges of the lower surface for contact with a bone .... â Claim 9 recites a plate comprising, inter alia, a "lower surface being arched concavely transversely to the longitudinal axis of the plate, in combination with open sections along the side edges of the plate between the screw holes, said open sections forming concavities in the lower surface of the plate, and said open sections, in combination with the concave undersurface of the plate, forming studs for bone contact along the side edges of the lower surface of the plate ...." 7 . Specifically, Claim 35 recites a compression plate featuring, inter alia, "side walls joining the upper and lower surfaces, the side walls including open sections extending transversely there-through, forming undercuts in at least a portion of the concave lower surface of the plate, the open sections lying between elongated screw holes with the compression *447 plate if viewed in a direction looking toward one of the side walls ... wherein the undercuts, in combination with the concave arching of the lower surface of the plate, form studs for bone contact .... â 8 . Defendant acknowledges the symmetry between these "arcuate cut out sectionsâ and the âopen sectionsâ in other claims, as it argues that these phrases should be construed in the same way. We address the construction of the term "arcuate cut out sectionsâ in greater detail below. 9 . Paragraph 2 of 35 U.S.C. § 112 requires a patent to âconclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention.â 10 . "Summary judgment is as appropriate in a patent case as in any other.â Barmag Banner Maschinenfabrik AG v. Murata Mach., Ltd., 731 F.2d 831, 835 (Fed.Cir. 1984). Summary judgment is proper "if there is no genuine issue as to any material fact and the moving party is entitled to judgment as a matter of law.â Fed.R.Civ.P. 56(c). An issue is genuine only if there is sufficient evidentiary basis on which a reasonable jury could find for the non-moving party, and a factual dispute is material only if it might affect the outcome of the suit under governing law. Anderson v. Liberty Lobby, Inc., 477 U.S. 242, 248 , 106 S.Ct. 2505 , 91 L.Ed.2d 202 (1986). The moving party has the burden of showing that there are no genuine issues of material fact that would permit a reasonable jury to find for the non-moving party. Celotex Corp. v. Catrett, 477 U.S. 317, 323 , 106 S.Ct. 2548 , 91 L.Ed.2d 265 (1986). In conducting our review, we view the evidence in the light most favorable to the non-moving party and draw all reasonable inferences in that partyâs favor. See Crown Operations Intâl, Ltd. v. Solutia, Inc., 289 F.3d 1367, 1375 (Fed.Cir.2002). 11 . Claim 17 also recites that the âshaft portionâ of the claimed bone plate has âboth first and second plate holes.â The parties appear to agree that âsecond plate holeâ should be interpreted identically to âsecond hole,â and thus our construction of "second holeâ will apply equally to both terms. 12 . The parties have agreed that âfirst holeâ is simply defined as âa first type of hole.â 13 . Specifically, the Description section, referring to the exemplary illustration in Figure 2, explains that "[i]n general ... any surgical screw that has a head with threads can be used as long as head is of an appropriate size and geometry for select plate holes of the bone plate and threads mate with the threads of the plate holes.â 14 . The Description, referring to the exemplary illustration in Figure 1, explains that "[i]n general ... any surgical screw that has a non-threaded head of an appropriate size and geometry for select plate holes of the bone plate can be used.â 15 . We note that the specification in the '486 patent differs from that in the '036 patent because there is ample evidence of the paten-teeâs intent to define âsecond holeâ in a particular way outside the embodiments themselves. By contrast, when we considered the meaning of the term âstudsâ in the '036 patents, there was no evidence outside of the preferred embodiments that the patentees intended to restrict them to "pointed tips.â 16 . The word âmetaphysisâ generally describes the widened end portion of a long bone, while the "diaphysisâ is the shaft portion of a long bone. 17 . The parties initially identified four phrases from the '744 patent for construction. In its response brief, however, Defendant acknowledged that it is willing to adopt Plaintiffs constructions for two of them. First, claims 1, 24 and 53 recite a bone plate having, inter alia âa plurality of arched cut-outs extending transverse to the longitudinal axis of the plate.â The parties now agree that this phrase should be construed as simply "a plurality of undercuts that have a shape like an arch, and that extend in a direction transverse to the longitudinal axis.â Second, claim 24 also recites a plate that has a "thinner cross section in regions between the plate holes.â The parties now agree that this term should be construed as "the thickness of the cross section of the plate at a region between the holes is less than other regions of the plate.â We will adopt the agreed-upon constructions for these terms. Case Information
- Court
- E.D. Pa.
- Decision Date
- February 4, 2008
- Status
- Precedential