• Solus Advanced Materials Co., Ltd. v. SK Nexilis Co., Ltd.Institution denied
  PTAB · Apr 25, 2025 · IPR2024-01462 · APJ Jo-Anne M Kokoski · IPR · Institution

  The Board denied institution because Petitioner did not show a reasonable likelihood that claims 1–8 were unpatentable under the asserted obviousness grounds.

  RulingsInstitution decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “experience working on the development of materials or components for electronic devices such as batteries.” Pet. 2. Petitioner further contends that “[a]dditional education, such as a graduate degree, could compensate for less work experience, and additional work experience could compensate for less formal education.” Id. Patent Owner states that, “[f]or purposes of this Preliminary Response, Patent Owner applies Petitioner’s level of skill for a person of ordinary skill in the art.” Prelim. Resp. 4. For purposes of this Decision, we adopt Petitioner’s undisputed proposed definition because it appears to be consistent with the cited prior art and the disclosure of the ’014 patent. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001) (explaining that specific findings regarding ordinary skill level are not required “where the prior art itself reflects an appropriate level and a need for testimony is not shown” (quoting Litton Indus. Prods., Inc. v. Solid State Sys. Corp., 755 F.2d 158, 163 (Fed. Cir. 1985))).” slip op. at 8

  • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededOther

    “customary meaning of such claim as understood by one of ordinary skill in the art and the prosecution history pertaining to the patent.” 37 C.F.R. § 42.100(b). Under this standard, claim terms are generally given their plain and ordinary meaning as would have been understood by a person of ordinary skill in the art at the time of the invention and in the context of the entire patent disclosure. Phillips v. AWH Corp., 415 F.3d 1303, 1313 (Fed. Cir. 2005) (en banc). Only those terms in controversy need to be construed, and only to the extent necessary to resolve the controversy. Realtime Data LLC v. Iancu, 912 F.3d 1368, 1375 (Fed. Cir. 2019). in this proceeding.” Pet. 3. Patent Owner contends that “[t]he Board need not construe any term in order to determine that institution should be denied.” Prelim. Resp. 4. Based on the record before us, we determine that no claim term requires express construction for purposes of this Decision. See Realtime Data, 912 F.3d at 1375.” slip op. at 8

  • PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied

    “For these reasons, we are not persuaded that Petitioner sufficiently establishes that a POSITA would have been motivated to modify Hanafusa in light of Dobashi with a reasonable expectation of success as Petitioner contends. Accordingly, we determine that Petitioner fails to demonstrate a reasonable likelihood of prevailing in its assertion that the subject matter of claim 1, and claims 4 and 8 that depend therefrom, would have been obvious over the combined teachings of Hanafusa and Dobashi.” slip op. at 18

  • Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation not foundNot shown unpatentableNot shown unpatentable

    “Petitioner also focuses on Hanafusa’s teaching that all known methods can be used to make a rough surface low-profile, and Dobashi’s teaching that RSm can be used as an indicator for judgment of the surface, to support its contention that a POSITA would have been motivated to apply Dobashi’s RSm to further achieve Hanafusa’s purpose, without explaining how and why that would be the case. In particular, neither Petitioner nor Dr. Josefowicz adequately explain why a POSITA looking for ways to make Hanafusa’s surface roughness low-profile would look to methods to achieve as the period of waviness, RSm can also be used as an indicator for judgment of the surface.” Ex. 1005, 2:66–3:1, 6:23–26. Dobashi explains that waviness is “an indicator for determining whether the fine pattern forming performance is good or bad,” and “[t]he surface has small waviness and is smooth when RSm is large, and the surface has large waviness and is rough when RSm is small.” Id. at 3:1–3, 6:27–29. Dobashi also teaches that surface roughness Rzjis is used as a low-profile indicator. Ex. 1005, 2:66– 3:1. Dobashi, therefore, teaches that RSm is an indicator of surface waviness, which Dobashi explains is different than surface roughness. Id. at 2:66–3:3, 6:23–29. Given these teachings in Dobashi, neither Petitioner nor Dr. Josefowicz sufficiently explains how or why a POSITA would have been motivated to implement Dobashi’s RSm values to make Hanafusa’s surface roughness low-profile. See Pet. 10–12; Ex. 1003 ¶¶ 46–52.” slip op. at 14

  Claim construction§ 103 obviousnesscites Phillips · KSR
  Patents in suitUS 11,346,014
• Innoscience (Zhuhai) Technology Company, Ltd / Innoscience America, Inc. v. Efficient Power Conversion CorporationAll claims unpatentable
  PTAB · Mar 18, 2025 · IPR2023-01381 · APJ Jon B Tornquist · IPR · Final written decision

  Claims 1–3 and 7–9 are unpatentable as obvious over Uemoto and Smith; the motion to amend is granted, and proposed substitute claims 13 and 14 are not shown unpatentable.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “In order to determine whether an invention would have been obvious at the time the application was filed, we consider the level of ordinary skill in the pertinent art. Graham, 383 U.S. at 17. In assessing the level of ordinary skill in the art, various factors may be considered, including the “type of problems encountered in the art; prior art solutions to those problems; rapidity with which innovations are made; sophistication of the technology; and educational level of active workers in the field.” In re GPAC, Inc., 57 F.3d 1573, 1579 (Fed. Cir. 1995) (quotation omitted). Petitioner contends a person of ordinary skill in the art “would have possessed at least a four-year degree in electrical engineering, chemical engineering, physics, or material science, or a closely related field, and at least two years of experience in semiconductor device design or fabrication, including the processing of semiconductor materials, analysis of device operation, or the development of new device topologies.” Pet. 5–6. Petitioner contends “[a]dditional education could substitute for professional experience and vice versa.” Id. at 6. Patent Owner contends that a person of ordinary skill in the art would have had “at least a four-year degree in electrical engineering, physics, material science, or a closely related field, and three years of professional work experience in the epitaxial growth, design, and fabrication of semiconductor electronic devices, including those of GaN.” PO Resp. 7 (citing Ex. 2009 ¶ 82). Upon review of the evidence of record and the parties’ arguments, we adopt Petitioner’s definition of the person of ordinary skill in the art as it is consistent with the prior art of record. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001) (holding that the prior art itself can reflect the appropriate level of ordinary skill in the art). We note, however, that the conclusions reached in this Decision would be the same under either proposed definition of the ordinarily skilled artisan. See Ex. 2009 ¶ 83 (Dr. Schubert testifying that his opinions would be the same under either proposed definition); Ex. 1033 ¶ 9 (Dr. Shealy testifying that the differences in proposed definitions of the ordinarily skilled artisan “would not change the outcome of the invalidity analysis in any material manner”); PO Resp. 7; Pet. Reply 1.” slip op. at 9

  • Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed board ownDecided for patent owner

    “compensated GaN layer above the barrier layer, and a gate contact above the compensated GaN layer.” Ex. 1001, 5:12–18. Petitioner contends the term “compensated” indicates that the step of compensating the GaN layer has already occurred, such that the term “compensated GaN layer” should be construed as a “‘[d]oped GaN layer formed with a step to passivate its impurities’ which is a ‘product-by-process’ limitation.”5 Pet. 12–14. And, because compensation with hydrogen was the “critical step” distinguishing the claims from the prior art, and because hydrogenation in as-grown III-nitride materials had been well known for over a decade by 2009, Petitioner contends “compensated” “cannot be interpreted as mere hydrogen presence in as-grown material, a well-known property of doped GaN.” Id. at 15. Patent Owner contends “compensated GaN material” should be construed as “a semiconductor GaN gate material in which one type of impurity (for example, donor) cancels the electrical effects of the other type of impurity (for example, acceptor).” PO Resp. 11 (citing Ex. 2009 ¶ 92) (emphasis added). Patent Owner contends this construction is consistent with the IEEE dictionary, which defines “compensated semiconductor” as 5 Given that product-by-process steps in a device claim are not entitled to patentable weight, Petitioner contends “the prior art only need show a material with passivated impurities to show unpatentability, not the step to achieve it.” Pet. 15–16. “[a] semiconductor in which one type of impurity or imperfection (for example, donor) partially cancels the electric effects of the other type of impurity or imperfection (for example, acceptor).” PO Resp. 14 (quoting Ex. 2004). Patent Owner contends its construction is also consistent with the written description of the ’294 patent, which explains that a compensated GaN material is part of the gate and includes a p-type impurity that imparts an electrical effect (i.e., conductivity), as well as a second impurity, e.g., hydrogen, that partially cancels the electrical effect of the p-type impurity, rendering the layer semi-insulating. Id. at 14–15 (citing Ex. 1001, 3:10–13, 3:43–45). On this record, we construe “compensated GaN layer” as “a GaN layer in which one type of impurity (for example, donor) partially cancels the electric effects of the other type of impurity (for example, acceptor).” This is consistent with the disclosures of the ’294 patent, the IEEE dictionary definition, and the construction ultimately adopted by the ITC. Ex. 2004, 3; Ex. 1049, 16–17 (ITC construing “compensated GaN layer” to mean “a GaN layer in which one type of impurity partially cancels the electrical effects of another type of impurity”); Ex. 1001, 3:43–45 (explaining that the compensated GaN layer of the ’294 patent is formed through the “passivation of a p-type impurity using hydrogen”). For the reasons set forth below, however, we decline to construe “compensated GaN layer” as a product-by-process claim term (as asserted by Petitioner), or to limit the compensated GaN layer to a gate material (as asserted by Patent Owner).” slip op. at 11

  • Claim Construction › Intrinsic evidence (Phillips canons) › Specification disavowal / 'present invention' languageDisclaimer not foundDecided for petitioner

    “There are two exceptions to the general rule that we apply the ordinary and customary meaning of a claim term: (1) when a patentee sets out a definition and acts as his own lexicographer, or (2) when the patentee disavows the full scope of a claim term either in the specification or during prosecution. See Thorner, 669 F.3d at 1365. The standards for lexicography and disclaimer, however, are “exacting.” Id. at 1366. There is no argument that the patentees acted as their own lexicographer to redefine the term “compensated GaN layer.” With respect to disavowal, a “patentee may demonstrate intent to deviate from the ordinary and accustomed meaning of a claim term by including in the specification expressions of manifest exclusion or restriction, representing a clear disavowal of claim scope.” Thorner, 669 F.3d at 1366 (quoting Teleflex, Inc. v. Ficosa N. Am. Corp., 299 F.3d 1313, 1325 (Fed. Cir. 2002)). As noted by Patent Owner, the title of the ’294 patent is, in part, “Compensated Gate MISFET” and much of the discussion of the ’294 patent is of a compensated GaN layer that is directly below the gate contact and above a barrier layer and operates in conjunction with the gate contact to control the on/off state of the transistor. PO Resp. 12–14. We are presented with insufficient argument or evidence to conclude, however, that these disclosures rise to the level of a disclaimer. For example, although the title of the ’294 patent is directed to a “Compensated Gate MISFET,” claim 1 is more broadly directed to “[a] column III Nitride transistor.” Ex. 1001, 5:12, code (54). Nor are we directed to an expression or statement of manifest exclusion in the ’294 patent that would serve to disclaim any “compensated GaN layer” that is not directly below the gate and/or that does not function in concert with the gate electrode to control the on/off state of the transistor. See Thorner, 669 F.3d at 1366. With respect to the stated goals of the invention, as noted by Patent Owner, one of the primary purposes of the compensated GaN layer of the ’294 patent is to reduce gate leakage and gate capacitance. Ex. 1001, 2:13– 19, 3:18–21 (“[U]sing a compensated semiconductor layer 38 leads to low gate leakage during device operation.”). We cannot use the goals of the invention, however, to rewrite the claims or insert terms that are not present. See Thorner, 669 F.3d at 1366. Moreover, the prior art of record indicates that a compensated GaN layer that is below the gate contact and above a barrier layer, but not part of the active gate structure, may also “decrease the leakage current between the gate and the drain.” Ex. 1006 ¶¶ 44 (“Even when a positive bias of 5 V or higher is applied to the gate electrode, no significant gate-leakage current is observed.”), 61. As such, evidence of record suggests that a person of ordinary skill in the art would have understood that one of the primary goals disclosed in the ’294 patent is achieved regardless of whether the compensated GaN layer is part of the gate, or simply in close vicinity to the gate. In view of the foregoing, we are not persuaded that the written description of the ’294 patent indicates that the “compensated GaN layer” must be part of the gate structure.” slip op. at 17

  • Obviousness (§103) › Objective indicia / secondary considerations › NexusObjective indicia no nexusDecided for petitioner

    “To be probative, Patent Owner must prove there is a nexus between the presented evidence and the merits of the claimed invention. See Demaco Corp. v. F. Von Langsdorff Licensing Ltd., 851 F.2d 1387, 1392 (Fed. Cir. 1988). A rebuttable presumption of nexus applies when the “patentee shows that the asserted evidence is tied to a specific product and that the product ‘is the invention disclosed and claimed.’” Fox Factory, Inc. v. SRAM, LLC, 944 F.3d 1366, 1373 (Fed. Cir. 2019) (quoting Demaco, 851 F.2d at 1392). “That is, presuming nexus is appropriate ‘when the patentee shows that the asserted objective evidence is tied to a specific product and that product embodies the claimed features, and is coextensive with them.’” Id. (quoting Polaris Indus., Inc. v. Arctic Cat, Inc., 882 F.3d 1056, 1072 (Fed. Cir. 2018)). If the praise is not limited to the features of the claimed invention, the patent owner may still prove nexus “by showing that the evidence of secondary considerations is the ‘direct result of the unique characteristics of the claimed invention.’” Id. at 1373–74 (quoting In re Huang, 100 F.3d 135, 140 (Fed. Cir. 1996)). Patent Owner contends that the compensated gate of the ’294 patent “was a breakthrough invention and resulted in the first commercially viable enhancement-mode GaN transistor.” PO Resp. 60 (citing Ex. 2009 ¶¶ 192– 193, 197; Ex. 2021). Patent Owner further contends that this achievement required the counter-intuitive use of a compensated gate material in the gate structure, and represented “a technological leap that laid the foundation for viable enhancement-mode GaN transistors.” Id. at 61–62. For this achievement, Patent Owner contends the inventor, Dr. Alex Lidow, received the 2015 SEMI Award. Id. at 60 (citing Ex. 2021). Upon review of Patent Owner’s evidence and the parties’ arguments, we find that Patent Owner’s objective indicia evidence is entitled to little, if any, weight. The evidence of praise relied upon by Patent Owner is not clearly linked to the claimed invention or any particular product having each of the claimed features of the ’294 patent. Ex. 2021. For example, the 2015 SEMI award was provided to Dr. Lidow “for commercialization of GaN power devices.” Id. An article explaining the award indicates that “high cost” previously “limited [the] commercial success” of GaN technologies, but Dr. Lidow was able to overcome these issues, “from resolving packaging limitations to establishing a low-cost supply chain,” “through persistence.” Id. This praise is not demonstrably linked to the claimed invention or any particular device, and does not mention the use of a compensated gate, or any other relevant feature recited in the claims. In view of the foregoing, we determine that Patent Owner’s objective evidence of non-obviousness is entitled to little, if any, weight.” slip op. at 20

  Patent outcomesUS 8,350,294 unpatentable
  Claim construction§ 103 obviousness§ 112 disclosurecites KSR · Graham
  Patents in suitUS 8,350,294
• Ecto World, LLC / Sv3, LLC v. Rai Strategic Holdings, Inc.Institution denied
  PTAB · Mar 10, 2025 · PGR2024-00049 · APJ Jo-Anne M Kokoski · PGR · Institution

  The Board denied institution because Petitioner did not show the patent was eligible for PGR; the challenged claims were supported by the 2006 priority application.

  RulingsInstitution decision

  • PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied

    “Accordingly, we determine that Petitioner does not demonstrate that it is more likely than not that the challenged claims lack written support in the Specification (and the ’634 application). That is, on this record, it appears that the challenged claims properly claim priority to the ’634 application and, accordingly, have an effective filing date in October 2006. 2. Conclusion: PGR Eligibility For the foregoing reasons, and based on the record before us, we determine that Petitioner has not demonstrated that it is more likely than not that the ’202 patent has, or had, at least one claim having an effective filing date on or after March 16, 2013. Accordingly, we determine that the ’202 patent is entitled to the filing date of the ’634 application (October 18, 2006), and, thus, the ’202 patent is not eligible for post-grant review.” slip op. at 18

  • Claim Construction › Intrinsic evidence (Phillips canons) › Specification disavowal / 'present invention' languageTerm construed board ownDecided for patent owner

    “Accordingly, the ’202 patent consistently and repeatedly characterizes the invention as incorporating tobacco in some form and ties the stated benefits of the invention to the inclusion of tobacco. Moreover, the Specification is directed to smoking articles containing tobacco, all of the embodiments include tobacco, and “the present invention” is described as a smoking article, where the smoking article includes tobacco. Consequently, we determine that “smoking article” as it is used in the challenged claims is limited to devices that include tobacco. See Mosaic Brands, Inc. v. Ridge Wallet LLC, 55 F.4th 1354, 1361 (Fed. Cir. 2022) (finding claimed “lip” is limited to “extrudable plastic materials” where specification states that “the device of the present invention is constructed of extrudable plastic materials” and “emphasizes the benefits of using extrudable plastics and describes them as benefits of the invention as a whole”); Poly-Am., L.P. v. described in the specification has inwardly extended short seals and every section of the specification indicates the importance of inwardly extended short seals. These two facts provide together a proper reason to limit the claims in this way.”); Phillips v. AWH Corp., 415 F.3d 1303, 1312–1317 (Fed. Cir. 2005) (en banc) (“[T]he specification may reveal an intentional disclaimer, or disavowal, of claim scope by the inventor. In that instance as well, the inventor has dictated the correct claim scope, and the inventor’s intention, as expressed in the specification, is regarded as dispositive.”).” slip op. at 13

  • Disclosure Requirements (§112) › Written description (Ariad)Written description adequateEntitled to earlier dateNot shown unpatentable

    “Petitioner’s argument is dependent on accepting Petitioner’s assertion that the claims include a smoking article that does not contain tobacco, which we have not done. Instead, as set forth above, we construe “smoking article” as being limited to devices that include tobacco. See § II.B.2, supra. Based on our construction of “smoking article” and the evidence of record in this proceeding, we determine that the challenged claims are supported by the specification of the ’202 patent, which is identical to the specification of all of the continuations in the chain leading back to the October 18, 2006 that the specification of the ’202 patent and every patent in its priority chain “have identical specifications”); Prelim. Resp. 13 (noting that Petitioner does not identify other limitations in the challenged claims “allegedly lacking support in the ’202 patent family’s applications dating back to U.S. App. No. 11/550,634, filed on October 18, 2006”). Accordingly, we determine that Petitioner does not demonstrate that it is more likely than not that the challenged claims lack written support in the Specification (and the ’634 application). That is, on this record, it appears that the challenged claims properly claim priority to the ’634 application and, accordingly, have an effective filing date in October 2006.” slip op. at 17

  Claim construction§ 112 disclosurecites Phillips
  Patents in suitUS 11,925,202
• Boe Technology Group Co., Ltd. v. 138 East LCD Advancements LimitedInstitution denied
  PTAB · Dec 16, 2024 · IPR2024-00977 · APJ Christopher M Kaiser · IPR · Institution

  The Board denied institution because Petitioner did not show a reasonable likelihood of proving claims 7–13 and 15–20 unpatentable on any asserted ground.

  RulingsInstitution decision

  • PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied

    “determine whether to institute an inter partes review under 35 U.S.C. § 314 and 37 C.F.R. § 42.4(a). Inter partes review may not be instituted unless “the information presented in the petition filed under [35 U.S.C.] section 311 and any response filed under [35 U.S.C.] section 313 shows that there is a reasonable likelihood that the petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” 35 U.S.C. § 314(a) (2018). “When instituting inter partes review, the Board will authorize the review to proceed on all of the challenged claims and on all grounds of unpatentability asserted for each claim.” 37 C.F.R. § 42.108(a) (2023).” slip op. at 2

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “had at least a Bachelor’s degree in electrical engineering, computer science, physics, or a similar field and at least two years of experience designing semiconductor display devices, including LCD displays.” Pet. 19. Petitioner also asserts that “[a]dditional relevant work experience can compensate for less education, and vice versa.” Id. On the record presented, Patent Owner “does not dispute the level of skill for a person of ordinary skill in the art . . . set forth in the Petition.” Prelim. Resp. 8. Neither party explains why the outcome of this case would be affected by the adoption of any particular proffered definition of a person of ordinary skill in the art. For purposes of this Decision, we adopt Petitioner’s assessment of the level of ordinary skill in the art, as it appears consistent with the ’606 patent and the asserted prior art. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001).” slip op. at 7

  • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededOther

    “As discussed below, we are able to determine whether to institute review without resolving the construction of any claim terms. Accordingly, we need not and do not construe any terms expressly. See Realtime Data, LLC v. Iancu, 912 F.3d 1368, 1375 (Fed. Cir. 2019) (“The Board is required to construe ‘only those terms . . . that are in controversy, and only to the extent necessary to resolve the controversy.’” (quoting Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999))).” slip op. at 8

  • Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)Not shown unpatentableNot shown unpatentable

    “view. First, as Petitioner admits, data line 6a is not connected to image signal line 101d and line 109 other than when sample hold circuit 101c connects them due to shift register 101b outputting an enabling signal. Pet. 49. This is supported by the layout of the four elements in Fujikawa’s Figure 2. Ex. 1005, Fig. 2 (depicting sample hold circuits 101c between and connecting data lines 6a and signal lines 101d). In addition, Patent Owner’s declarant, Dr. E. Fred Schubert, testifies that “two separate lines straddling circuitry are [not] one line.” Ex. 2001 ¶ 64. The dispute between the parties on this issue is largely one of claim construction: should the term “wiring line” in claim 7 be construed broadly enough to encompass a collection of lines separated by a sample hold circuit? In order to determine that Fujikawa discloses or teaches the recited wiring lines, we would need to answer this question in the affirmative. Yet, as discussed above, neither party proposes construing “wiring line,” or any other term used in the claims of the ’606 patent. Pet. 18; Prelim. Resp. 7. The failure to argue for and sufficiently support a broad construction of the term “wiring line” means that Petitioner does not show sufficiently, for purposes of supporting institution of review, that Fujikawa discloses or teaches the “wiring line” limitation of claim 7. b) Conclusion Regarding Claim 7 Based on the record presented, we determine that Petitioner has not shown that there is a reasonable likelihood that Petitioner will prevail in demonstrating that claim 7 is unpatentable as anticipated by or obvious in view of Fujikawa.” slip op. at 11

  Claim construction§ 102 anticipation§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 9,557,606
• Innoscience America, Inc. v. Infineon Technologies Austria AGInstitution denied
  PTAB · Dec 11, 2024 · IPR2024-00975 · APJ Christopher M Kaiser · IPR · Institution

  The Board denied institution because the petition did not show a reasonable likelihood that any challenged claim was obvious over the asserted grounds.

  RulingsInstitution decision

  • PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied

    “determine whether to institute an inter partes review under 35 U.S.C. § 314 and 37 C.F.R. § 42.4(a). Inter partes review may not be instituted unless “the information presented in the petition filed under [35 U.S.C.] section 311 and any response filed under [35 U.S.C.] section 313 shows that there is a reasonable likelihood that the petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” 35 U.S.C. § 314(a) (2018). “When instituting inter partes review, the Board will authorize the review to proceed on all of the challenged claims and on all grounds of unpatentability asserted for each claim.” 37 C.F.R. § 42.108(a) (2023).” slip op. at 2

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “possessed at least a four-year degree in electrical engineering or a closely related field, and at least two years of experience in semiconductor device design.” Pet. 1. Petitioner also asserts that “[a]dditional education could substitute for professional experience and vice versa.” Id. On the present record, Patent Owner does not dispute this proposed level of skill. Prelim. Resp. 1–78. Neither party explains why the outcome of this case would be affected by the adoption of any of the proffered definitions of a person of ordinary skill in the art. For purposes of this Decision, we adopt Petitioner’s assessment of the level of ordinary skill in the art, as it appears consistent with the ’481 patent and the asserted prior art. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001).” slip op. at 7

  • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededNot reached

    “On the present record, neither party proposes any claim terms for construction. Pet. 3; Prelim. Resp. 1–78. As discussed below, we are able to determine whether to institute review without resolving the construction of any claim terms. Accordingly, we need not and do not construe any terms expressly. See Realtime Data, LLC v. Iancu, 912 F.3d 1368, 1375 (Fed. Cir. 2019) (“The Board is required to construe ‘only those terms . . . that are in controversy, and only to the extent necessary to resolve the controversy.’” (quoting Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999))).” slip op. at 8

  • Obviousness (§103) › Graham factors (scope of art, differences, level of skill)Not shown unpatentableNot shown unpatentable

    “‘run[ning] generally parallel to the lateral extent of a semiconductor material or semiconductor carrier’” and that “[t]he ’481 patent . . . describes a device that ‘has a lateral drift path.’” Pet. 24 (quoting Ex. 1001, 3:14–18, 4:37–38). Patent Owner directs us to a statement in the prosecution history that “[a] lateral transistor is a transistor in which current flows across ‘in the direction parallel to’ the device surface,” as opposed to “a vertical transistor,” in which “[c]urrent ‘flows in the direction normal to’ the device surface.” Prelim. Resp. 8 (quoting Ex. 1002, 33–34). Thus, the parties generally agree that a lateral transistor is a transistor in which current flows in a direction parallel to the surface of the transistor. Petitioner argues that Nega teaches or suggests a transistor in which current flows parallel to the surface because Nega’s source, gate, and drain electrodes “are spread laterally in a lateral drift path, instead of vertically stacked.” Pet. 24–25 (citing Ex. 1005, Fig. 2). Patent Owner argues to the contrary that the placement of source, gate, and drain electrodes in the same lateral plane, rather than in a vertical stack, does not necessarily indicate that the current flow within the transistor is parallel to the surface. Prelim. Resp. 47–48 (citing Ex. 2002, 7–8, Figs. 1.7a, 1.7c). According to Patent Owner, transistors with electrodes in the same horizontal plane can have either lateral or vertical current flow. Id. Thus, Patent Owner argues, the lateral placement of the source, gate, and drain electrodes in Nega does not mean that Nega teaches or suggests a lateral transistor. On the present record, we agree with Patent Owner that Petitioner has not shown sufficiently that Nega teaches a transistor in which current flows in a direction parallel to the surface, rather than in a direction normal to the surface. Transistors with current flow in either direction can have electrodes located on a common horizontal plane, with the direction of the current flow depending on the configuration of doped semiconductor regions located below the electrodes. Ex. 2002, Figs. 1.7a, 1.7c. Because Petitioner relies on the location of Nega’s electrodes, rather than on any particular configuration of doped semiconductor regions in Nega, Petitioner does not show sufficiently that Nega teaches a lateral transistor.” slip op. at 10

  Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 9,899,481
• Cisco Systems, Inc. / Fortinet, Inc. v. Infoexpress Inc.Institution denied
  PTAB · Oct 11, 2024 · IPR2024-00678 · APJ John A Hudalla · IPR · Institution

  Institution was denied for claims 1, 2, 5, and 6 because Petitioner did not show a reasonable likelihood that either Krantz alone or Krantz and Herrmann rendered them obvious.

  RulingsInstitution decision

  • PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied

    “review. See 35 U.S.C. § 314 (2018); 37 C.F.R. § 42.4(a) (2023). Under 35 U.S.C. § 314(a), we may not authorize an inter partes review unless the information in the petition and the preliminary response “shows that there is a reasonable likelihood that the petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” For the reasons that follow, we do not institute an inter partes review.” slip op. at 2

  • Obviousness (§103) › Graham factors (scope of art, differences, level of skill)Not shown unpatentableNot shown unpatentable

    “We are persuaded by Patent Owner’s arguments. As noted by Patent Owner (Prelim. Resp. 27), claim 1 separately recites (1) “an authentication module” that seeks access based on “authentication information” and (2) a “gatekeeper” that “formulate[s] an audit request” and evaluates whether to approve access based on a response to the audit request. The fact that authentication can be a part of a security policy audit (see Pet. 38 (citing Ex. 1301, 11:67–12:6)) does not change the fact that claim 1 recites separate sets of limitations for authentication and auditing that Petitioner must account for in its unpatentability contentions.” slip op. at 13

  • Skill levelSkill level petitioner adoptedOther

    “remedied by additional education, and vice versa.” Id. Patent Owner argues that a person of ordinary skill in the art “would have had a bachelor’s degree in computer science, computer engineering, or electrical engineering and at least three years of experience in networking operating systems and cybersecurity.” Prelim. Resp. 1. Alternatively, Patent Owner argues that a person of ordinary skill in the art would have had “a master’s degree in one of the foregoing and at least two years of experience in the aforementioned fields.” Id. at 2. Patent Owner does not cite any evidence supporting its assessment of the level of ordinary skill. Neither party explains why the outcome of this case would be affected by the adoption of any of the proffered definitions of a person of ordinary skill in the art. For purposes of this Decision, we adopt Petitioner’s definition of the level of ordinary skill in the art. On the present record, we are satisfied that this definition of the level of skill is consistent with the teachings of the ’645 patent and the asserted prior art.” slip op. at 9

  • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededOther

    “Petitioner argues that “a [person of ordinary skill in the art] would find the challenged claims unpatentable under any interpretation consistent with their plain and ordinary meaning in the context of the [’645 patent],” so we “need not expressly construe the claim terms.” Pet. 8. Patent Owner also argues that we should apply the plain and ordinary meaning of all claim terms. Prelim. Resp. 6. Nonetheless, Patent Owner argues that Petitioner deviates from the plain and ordinary meaning of certain limitations. Id. at 6– 7. Thus, Patent Owner puts forth its understanding of the plain and ordinary meaning for the following recitations: “configure an access point in response to approval of the device by the gatekeeper” and “device information received from the device in response to the audit request.” Id. at 7–13. Based on the present record, we need not expressly construe any claim terms in order to render the instant Decision. See, e.g., Realtime Data, LLC v. Iancu, 912 F.3d 1368, 1375 (Fed. Cir. 2019) (“The Board is required to construe ‘only those terms . . . that are in controversy, and only to the extent necessary to resolve the controversy.’” (quoting Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999))).” slip op. at 10

  Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 8,117,645
• Cisco Systems, Inc. / Fortinet, Inc. v. Infoexpress Inc.Institution denied
  PTAB · Sep 24, 2024 · IPR2024-00540 · APJ Christopher M Kaiser · IPR · Institution

  The Board denied institution because Petitioner did not show a reasonable likelihood that claims 1, 2, 4–10, 13, 16, 18, and 19 were obvious over Krantz alone or Krantz and Herrmann.

  RulingsInstitution decision

  • PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied

    “determine whether to institute an inter partes review under 35 U.S.C. § 314 and 37 C.F.R. § 42.4(a). Inter partes review may not be instituted unless “the information presented in the petition filed under [35 U.S.C.] section 311 and any response filed under [35 U.S.C.] section 313 shows that there is a reasonable likelihood that the petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” 35 U.S.C. § 314(a) (2018). “When instituting inter partes review, the Board will authorize the review to proceed on all of the challenged claims and on all grounds of unpatentability asserted for each claim.” 37 C.F.R. § 42.108(a) (2023). For the reasons set forth below, upon considering the briefing and the evidence of record, we determine that the information presented in the Petition does not establish a reasonable likelihood that Petitioner will prevail with respect to any of the challenged claims. Accordingly, we do not institute inter partes review.” slip op. at 2

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Petitioner contends that one of ordinary skill in the art “would have had a bachelor’s degree in computer science, computer engineering, or an equivalent, and two years of relevant experience in networking and network security, and related fields.” Pet. 4. Petitioner also asserts that “[l]ack of professional experience can be remedied by additional education, and vice versa.” Id. Patent Owner argues that a person of ordinary skill in the art “would have had a bachelor’s degree in computer science, computer engineering, or electrical engineering and at least three years of experience in networking operating systems and cybersecurity.” Prelim. Resp. 1–2. Alternatively, Patent Owner argues that a person of ordinary skill in the art would have had “a master’s degree in one of the foregoing and at least two years of experience in the aforementioned fields.” Id. at 2. Neither party explains why the outcome of this case would be affected by the adoption of any of the proffered definitions of a person of ordinary skill in the art. For purposes of this Decision, we adopt Petitioner’s assessment of the level of ordinary skill in the art, as it appears consistent with the ’350 patent and the asserted prior art. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001).” slip op. at 8

  • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededNot reached

    “Petitioner argues that “a [person of ordinary skill in the art] would find the challenged claims unpatentable under any interpretation consistent with their plain and ordinary meaning in the context of the [’350 patent],” so we “need not expressly construe the claim terms.” Pet. 7. Patent Owner argues to the contrary that we should construe the phrase “reconfiguring the communication port” as “to change the access point itself [rather than something else] in a way that the checked device is able to access the less-restricted portion of the protected network.” Prelim. Resp. 7–9. Patent Owner also argues that we should construe the phrases “audit data pertaining to a device” and “auditing the device in accordance with a security policy” as “requir[ing] that the ‘audit data’ and ‘auditing’ . . . be expressly about the device” rather that “the user.” Id. at 9–12. As discussed below, we are able to determine whether to institute review without resolving the construction of any claim terms. Accordingly, we need not and do not construe any terms expressly. See Realtime Data, LLC v. Iancu, 912 F.3d 1368, 1375 (Fed. Cir. 2019) (“The Board is required to construe ‘only those terms . . . that are in controversy, and only to the extent necessary to resolve the controversy.’” (quoting Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999))).” slip op. at 9

  • Obviousness (§103) › Graham factors (scope of art, differences, level of skill)Not shown unpatentableNot shown unpatentable

    “We agree with Patent Owner. The ’350 patent distinguishes between user authentication using a username and password and application of a security policy. Ex. 1101, 1:35–39 (“A first level of access control is achieved by requiring authentication of a user. This may be accomplished by requiring the user to enter a username and a password.”), 1:45–48 (“Reliance on mere user authentication includes several disadvantages. For example, there are no provisions to assure that an access device used by the authenticated user meets network security policies.”). Although the ’350 patent describes both user authentication and application of a security policy as being carried out by a gatekeeper, this is accomplished in separate process steps. Id. at 10:38–41 (“GateKeeper 225 authenticates a user, obtains audit data, and applies a security policy in an Authenticate User Step 440, an Obtain Audit Data Step 450 and an Apply Security Policy Step 460, respectively.”). Thus, we are not persuaded that, as Petitioner argues, user authentication in the ’350 patent constitutes the application of a security policy.” slip op. at 12

  Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 8,347,350
• Luminex International Co., Ltd. v. Signify Holdings B.V.Instituted
  PTAB · Sep 9, 2024 · IPR2024-00101 · APJ Steven M Amundson · IPR · Institution

  Instituted IPR of claims 1–20 on all petition challenges because Petitioner showed a reasonable likelihood of prevailing on at least one challenged claim.

  RulingsInstitution decision

  • Director reviewDirector review, grantedGranted

    “On August 20, 2024, the Director granted Petitioner’s request and vacated the panel’s decision denying institution. Paper 12, 6. In doing so, the Director determined that Menard is not a real party in interest or a privy of Petitioner under § 315(b) and that § 315(b) does not bar institution. Id. at 5. The Director also determined that § 315(a) “does not apply to the ‘cross-claims’ asserted by Petitioner” and that § 315(a) does not bar institution. Id. Additionally, the Director declined to exercise discretion under § 314(a) to deny institution in view of the Wisconsin case because Petitioner submitted a Sotera stipulation. Id.; see Interim Procedure for Discretionary Denials in AIA Post-Grant Proceedings with Parallel District Court Litigation (June 21, 2022)1 at 3, 7–8 (citing Sotera Wireless, Inc. v. Masimo Corp., IPR2020-01019, Paper 12 (PTAB Dec. 1, 2020) (precedential as to § II.A)). Further, the Director remanded the case to the panel and instructed the panel “to determine whether the Petition presents a reasonable likelihood of prevailing with respect to at least one of the challenged claims under 35 U.S.C. § 314(a), and to determine whether to institute inter partes review accordingly.” Paper 12, 5–6. As noted above and explained in the patentability analysis below, we determine that there is a reasonable likelihood Petitioner would prevail with respect to at least one of the challenged claims. See supra § I; infra §§ III.E–III.H.” slip op. at 4

  • PTAB / AIA Trials › §315(b) time barNot time barredDecided for petitioner

    “On August 20, 2024, the Director granted Petitioner’s request and vacated the panel’s decision denying institution. Paper 12, 6. In doing so, the Director determined that Menard is not a real party in interest or a privy of Petitioner under § 315(b) and that § 315(b) does not bar institution. Id. at 5. The Director also determined that § 315(a) “does not apply to the ‘cross-claims’ asserted by Petitioner” and that § 315(a) does not bar institution. Id. Additionally, the Director declined to exercise discretion under § 314(a) to deny institution in view of the Wisconsin case because Petitioner submitted a Sotera stipulation. Id.; see Interim Procedure for Discretionary Denials in AIA Post-Grant Proceedings with Parallel District Court Litigation (June 21, 2022)1 at 3, 7–8 (citing Sotera Wireless, Inc. v. Masimo Corp., IPR2020-01019, Paper 12 (PTAB Dec. 1, 2020) (precedential as to § II.A)).” slip op. at 4

  • PTAB / AIA Trials › Real party in interest / privityRpi dispute resolved for petitionerDecided for petitioner

    “On August 20, 2024, the Director granted Petitioner’s request and vacated the panel’s decision denying institution. Paper 12, 6. In doing so, the Director determined that Menard is not a real party in interest or a privy of Petitioner under § 315(b) and that § 315(b) does not bar institution. Id. at 5. The Director also determined that § 315(a) “does not apply to the ‘cross-claims’ asserted by Petitioner” and that § 315(a) does not bar” slip op. at 4

  • PTAB / AIA Trials › Discretionary denial › Fintiv (parallel litigation)Institution denied discretionary otherDecided for petitioner

    “On August 20, 2024, the Director granted Petitioner’s request and vacated the panel’s decision denying institution. Paper 12, 6. In doing so, the Director determined that Menard is not a real party in interest or a privy of Petitioner under § 315(b) and that § 315(b) does not bar institution. Id. at 5. The Director also determined that § 315(a) “does not apply to the ‘cross-claims’ asserted by Petitioner” and that § 315(a) does not bar institution. Id. Additionally, the Director declined to exercise discretion under § 314(a) to deny institution in view of the Wisconsin case because Petitioner submitted a Sotera stipulation. Id.; see Interim Procedure for Discretionary Denials in AIA Post-Grant Proceedings with Parallel District Court Litigation (June 21, 2022)1 at 3, 7–8 (citing Sotera Wireless, Inc. v. Masimo Corp., IPR2020-01019, Paper 12 (PTAB Dec. 1, 2020) (precedential as to § II.A)).” slip op. at 4

  Claim construction§ 102 anticipation§ 103 obviousnessDiscretionary denialcites Phillips · KSR · Graham
  Patents in suitUS 10,299,336
• Njoy, LLC / Njoy Holdings, Inc. v. Juul Labs, Inc.Institution denied
  PTAB · Aug 26, 2024 · IPR2024-00567 · APJ Avelyn M Ross · IPR · Institution

  The Board denied institution on all challenged claims because Petitioner did not show a reasonable likelihood that Cho disclosed the claimed reservoir structure required by the challenged claims.

  RulingsInstitution decision

  • PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied

    “Therefore, Petitioner has not shown a reasonable likelihood that Cho describes “a liquid reservoir at least partially defined by an interior of the cartridge housing and an exterior of the atomizing chamber” in either of the “separated embodiment” or the “integrated embodiment.” For at least this reason, and based on the current record, Petitioner has failed to establish that claim 43 is anticipated by Cho. 3. Remaining Claims 44, 76, 77, 80, 81, 86, 89, and 93 Petitioner asserts that claims 44, 76, 77, 81, 86, 89, and 93 are anticipated by Cho. Pet. 35–46, 54–64. In addition, Petitioner alleges that the combination of Cho and Nielsen would have rendered obvious claim 80 of the ’114 patent. Pet. 64–70. Each of claims 44, 76, 77, 80, 81, 86, 89, and 93 requires a “liquid reservoir at least partially defined by an interior of the cartridge housing and an exterior of the atomizing chamber,” either by virtue of dependence (claims 76, 77, 80, 81, 86, 89, and 93) or independent recitation (claim 44). Ex. 1001, 11:50–12:9, 19:1–19:63. Because Petitioner has failed to show a reasonable likelihood that Cho teaches a “liquid reservoir at least partially defined by an interior of the cartridge housing and an exterior of the atomizing chamber,” we decline to institute on the remaining claims.” slip op. at 20

  • Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)Not shown unpatentableNot shown unpatentable

    “We are persuaded that Petitioner has not shown that Cho describes a “liquid reservoir [that] is partially defined by the exterior of an atomizing chamber” in either of the “separated embodiment” or the “integrated embodiment.” Pet. 48–50. With respect to the “separated embodiment,” Petitioner identifies the inside of storage container 1201 as the “interior of the cartridge housing” and the outside of air inhalation tube 1313 as the “exterior of the atomizing chamber.” Id. But Annotated Figure 11 does not show air inhalation tube 1313 as part of atomizing chamber 1203. Therefore, the liquid reservoir, i.e., loading portion 1205, is not “at least partially defined by . . . an exterior of the atomizing chamber.”” slip op. at 18

  • Obviousness (§103) › Motivation to combine / reasonable expectation of successNot reached

    “3. Remaining Claims 44, 76, 77, 80, 81, 86, 89, and 93 Petitioner asserts that claims 44, 76, 77, 81, 86, 89, and 93 are anticipated by Cho. Pet. 35–46, 54–64. In addition, Petitioner alleges that the combination of Cho and Nielsen would have rendered obvious claim 80 of the ’114 patent. Pet. 64–70. Each of claims 44, 76, 77, 80, 81, 86, 89, and 93 requires a “liquid reservoir at least partially defined by an interior of the cartridge housing and an exterior of the atomizing chamber,” either by virtue of dependence (claims 76, 77, 80, 81, 86, 89, and 93) or independent recitation (claim 44). Ex. 1001, 11:50–12:9, 19:1–19:63. Because Petitioner has failed to show a reasonable likelihood that Cho teaches a “liquid reservoir at least partially defined by an interior of the cartridge housing and an exterior of the atomizing chamber,” we decline to institute on the remaining claims.” slip op. at 20

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Patent Owner argues that a person of ordinary skill in the art “at the time of the ’114 patent would have had a B.S. in mechanical engineering, electrical engineering, or an equivalent degree, and either at least two years of experience designing electro-mechanical consumer products or an advanced degree in mechanical engineering, electrical engineering, or an equivalent field.” Prelim. Resp. 2 (citing Ex. 2001 ¶¶ 19). Patent Owner submits that “the arguments in this Response apply regardless of which standard is adopted,” and that “Patent Owner’s expert, Dr. John Collins, was a POSITA at the time of the ’114 patent under either [Petitioner’s or Patent Owner’s] definition.” Id. (citing Ex. 2001 ¶ 22). In light of the record before us, and for purposes of this Decision, we adopt Petitioner’s proposal regarding the level of ordinary skill in the art. Based on our review of the ’114 patent and the prior art of record, we determine that the definition offered by Petitioner comports with the qualifications a person would have needed to understand the ’114 patent and the prior art.” slip op. at 8

  Claim construction§ 102 anticipation§ 103 obviousnesscites Phillips
• Honeywell International Inc. v. DSM IP Assets B.V.Institution denied
  PTAB · Aug 21, 2024 · IPR2024-00493 · APJ Erica A Franklin · IPR · Institution

  The Board denied institution because Honeywell did not show a reasonable likelihood that claims 1–9 were unpatentable over any of its three obviousness combinations.

  RulingsInstitution decision

  • PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied

    “Accordingly, we determine that Petitioner has not shown a reasonable likelihood of prevailing in its obviousness challenge of independent claim 1 or dependent claims 2–9 over the combination of Simmelink and Section 73.1015.” slip op. at 23

  • Skill levelOther

    “PHOSITA) at the time of the ’532 patent “would have had at least a Bachelor’s degree in the field of chemistry, chemical engineering, polymer chemistry, or materials science and at least three years of relevant work experience in the field of high strength fibers.” Pet. 8 (citing Ex. 1003 ¶ 18). Petitioner adds that individuals with different educational backgrounds could still be of ordinary skill in the art if they have “additional experience [that] compensates for a deficit in their education and experience stated above.” Id. According to Patent Owner, a person or ordinary skill in the art, would have (i) a bachelor’s degree in chemistry, polymer chemistry, materials science, chemical engineering, or biomedical engineering and (ii) three years of experience in designing and manufacturing gel-spun UHMWPE yarns. At this level of skill, a PHOSITA would have a detailed understanding of the information provided in the Technology Background, Section II, supra, including (i) the differences between linear HDPE and UHMWPE, (ii) the history underlying Section 73.1015 and the early failures of the 1960s-era blue, melt-extruded polyethylene sutures, (iii) why the molecular orientation of polyethylene molecules leads to strong yarns in the special case of gel-spun UHMWPE, and (iv) the challenges associated with coloring gel-spun UHMWPE yarns, especially for end-use medical applications. Prelim. Resp. 33–34. We note that the parties’ proposed definitions are largely similar, except that Patent Owner additionally recognizes a Bachelor’s degree in biomedical engineering and requires experience in designing and manufacturing gel-spun UHMWPE yarns. In any event, we do not need to the same under either proposed definition.” slip op. at 6

  • Claim Construction › Intrinsic evidence (Phillips canons) › Lexicography (patentee as own lexicographer)Term construed patent owner constructionDecided for patent owner

    “a skilled artisan would have understood that the “gel spinning” process recited in the claims requires the use of a solvent during the spinning process. Indeed, the Specification describes this term, as follows: Gel spinning is understood to include at least the steps of spinning filaments from a solution of ultra-high molecular weight polyethylene in a spin solvent; cooling the filament obtained to form a gel filament removing at least partly the spin solvent from the gel filament; removing at least partly the spin solvent from the gel filament; and drawing the filament in at least one drawing step before during or after removing spin solvent. Ex. 1001, 2:31–37. We recognize the inventor’s lexicography as dispositive with respect to the meaning of the term “gel spinning.” See Phillips v. AWHCorp., 415 F.3d 1303, 1316 (Fed. Cir. 2005); SciMed Life Sys., Inc. v. Advanced Cardiovascular Sys., Inc., 242 F.3d 1337, 1343–44 (Fed. Cir.” slip op. at 8

  • Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITADecided for patent owner

    “Claim 1 describes gel spinning as the manner by which the filaments comprised in the claimed colored multi-filament yarn are obtained. This, on its face, is a product-by-process claim element because it describes the filament structure being obtained in a particular way, i.e., by gel spinning. See Kamstrup A/S v. Axioma Metering UAB, 43 F.4th 1374, 1382 (Fed. Cir. 2022) (agreeing with the Board that “cast in one piece” is a product-by-process claim element as it describes the structure being cast “in a particular way”). For this element to be limiting, it must impart “structural and functional differences” that distinguish the claimed product from the prior art. See Amgen Inc. v. F. Hoffman-La Roche Ltd, 580 F.3d 1340, 1365–67 (Fed. Cir. 2009). Patent Owner argues persuasively that gel spinning imparts structural and functional differences to the claimed product because the process “creates overlap between polyethylene molecules within the UHMWPE filaments that maximizes the intermolecular Van der Waals interactions, resulting in highly crystalline filaments with high tensile strength.” Prelim. Resp. 38, 22 (citing Ex. 1014, 62–66). According to Patent Owner, “the structure of the gel spun UHMWPE is substantially different from other types of UHMWPE such as compression-molded and ram-extruded UHMWPE used to make joint replacements and other orthopedic implants.” Id. at 38.” slip op. at 9

  Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 10,280,532

Holdings, summaries, rulings, issues, outcomes, winners and claim constructions shown for a decision were generated by a large language model reading the opinion. They are a guide to the decision, not the decision. Confirm every one against the court's own text before relying on it. Outcomes read from the patent owner’s side. Party names are extracted from the decision and are missing on about 900 short Director denials and scans, which carry the trial number instead.