• 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
• Posco Co., Ltd. v. ArcelormittalInstituted
  PTAB · Mar 18, 2025 · IPR2024-01377 · APJ Brian D Range · IPR · Institution

  The Board instituted IPR on claims 1–25 on all petitioned grounds, finding a reasonable likelihood of success, including that GMW14400 likely qualifies as prior art.

  RulingsInstitution decision

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

    “review pursuant to 35 U.S.C. § 6(b). Under 35 U.S.C. § 314(a), an inter partes review may not be instituted unless the information presented in the petition “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.” The Board determines whether to institute a trial on behalf of the Director. 37 C.F.R. § 42.4(a). The following findings of fact and conclusions of law are not final, but are made for the sole purpose of determining whether Petitioner meets the threshold for initiating review. Any final decision shall be based on the full trial record, including any response timely filed by Patent Owner. Any arguments not raised by Patent Owner in a timely-filed response may be deemed waived. For the reasons stated below, we determine that Petitioner has established a reasonable likelihood that it would prevail with respect to at least one claim. We hereby institute an inter partes review as to claims 1–25 of the ’227 patent based upon Petitioner’s asserted grounds of unpatentability.” slip op. at 2

  • PTAB / AIA Trials › Discretionary denial › Fintiv (parallel litigation)Denied

    “efficiency and integrity of the system are best served by denying or instituting review.” Fintiv at 6. Here, Fintiv factors one and five are neutral, factors two and three favor discretionary denial, factor four strongly weighs against discretionary denial, and favor six weighs against discretionary denial. The integrity of the system will benefit from institution because of the strong merits the Petition presents (factor six), and the ITC Investigation will not resolve these merits (factor four). This outweighs any potential inefficiency as indicated by factors two and three. We further note that any inefficiency in resolving the grounds the Petition presents is mitigated by the stay of the district court action (factor one). We, thus, decline to exercise discretionary denial under 35 U.S.C. § 314(a).” slip op. at 17

  • PTAB / AIA Trials › Discretionary denial › §325(d) same art / argumentsDenied

    “After considering the record as a whole, we determine that Petitioner has adequately demonstrated that the Office erred in a manner material to the patentability of challenged claims. As we explain in Section III(G), infra, Petitioner’s challenges to the ’227 patent appear strong based on the current record, and Patent Owner’s present arguments to the contrary are weak. Given the strength of Petitioner’s challenges on the present record, this is not a situation where we would say that “reasonable minds can disagree regarding the purported treatment of the art,” and we therefore determine that the Examiner erred by not considering the art in substantially the combination Petitioner proposes. Where Patent Owner states that “evidence that the Examiner did not consider these references in combination” is lacking (PO Sur-Reply 5), we disagree. If the Examiner considered these references in combination, the Examiner would have, given the apparent strength of Petitioner’s position on the merits on this record, issued a rejection. The lack of a rejection based on the combination proposed in the Petition provides some evidence that the Examiner did not consider these references in combination (because the lack of such a rejection raises the likelihood that the Examiner did not make such a consideration). 3. Conclusion Because Petitioner adequately made a showing of material error, we decline to exercise discretion not to institute inter partes review under 35 U.S.C. § 325(d). See Advanced Bionics, LLC, IPR2019-01469, Paper 6 at 8–9.” slip op. at 19

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

    “For purposes of this Decision, we do not discern a need to construe explicitly any claim language because doing so would have no effect on our analyses below of Petitioner’s asserted grounds and will not assist in resolving the present controversy between the parties. 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 10

  Claim construction§ 102 anticipation§ 103 obviousnessDiscretionary denialcites Phillips · KSR · Graham
  Patents in suitUS 11,326,227
• Posco Co., Ltd. v. ArcelormittalInstituted
  PTAB · Mar 18, 2025 · IPR2024-01376 · APJ Brian D Range · IPR · Institution

  The Board instituted review of claims 1–30 on all petitioned grounds, finding a reasonable likelihood of success, including that GMW14400 likely qualifies as prior art.

  RulingsInstitution decision

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

    “IV. CONCLUSION For the reasons above, we determine that the information presented in the Petition establishes that there is a reasonable likelihood that Petitioner would prevail with respect to challenged claims 1–30 of the ’602 patent. At this juncture in the proceeding, we have not made a final determination with respect to the patentability of the challenged claims, or with respect to claim construction. V. ORDER For the foregoing reasons, it is ORDERED that pursuant to 35 U.S.C. § 314(a), an inter partes review of claims 1–30 of the ’602 patent is hereby instituted with respect to all grounds of unpatentability set forth in the Petition; and” slip op. at 36

  • PTAB / AIA Trials › Discretionary denial › Fintiv (parallel litigation)Institution denied fintivDenied

    “efficiency and integrity of the system are best served by denying or instituting review.” Fintiv at 6. Here, Fintiv factors one and five are neutral, factors two and three favor discretionary denial, factor four strongly weighs against discretionary denial, and favor six weighs against discretionary denial. The integrity of the system will benefit from institution because of the strong merits the Petition presents (factor six), and the ITC Investigation will not resolve these merits (factor four). This outweighs any potential inefficiency as indicated by factors two and three. We further note that any inefficiency in resolving the grounds the Petition presents is mitigated by the stay of the district court action (factor one). We, thus, decline to exercise discretionary denial under 35 U.S.C. § 314(a).” slip op. at 17

  • PTAB / AIA Trials › Discretionary denial › §325(d) same art / argumentsInstitution denied 325dDenied

    “After considering the record as a whole, we determine that Petitioner has adequately demonstrated that the Office erred in a manner material to the patentability of challenged claims. As we explain in Section III(G), infra, Petitioner’s challenges to the ’602 patent appear strong based on the current record, and Patent Owner’s present arguments to the contrary are weak. Given the strength of Petitioner’s challenges on the present record, this is not a situation where we would say that “reasonable minds can disagree regarding the purported treatment of the art,” and we therefore determine that the Examiner erred by not considering the art in substantially the combination Petitioner proposes. Where Patent Owner states that “evidence that the Examiner did not consider these references in combination” is lacking (PO Sur-Reply 5), we disagree. If the Examiner considered these references in combination, the Examiner would have, given the apparent strength of Petitioner’s position on the merits on this record, issued a rejection. The lack of a rejection based on the combination proposed in the Petition provides some evidence that the Examiner did not consider these references in combination (because the lack of such a rejection raises the likelihood that the Examiner did not make such a consideration). 3. Conclusion Because Petitioner adequately made a showing of material error, we decline to exercise discretion not to institute inter partes review under 35 U.S.C. § 325(d). See Advanced Bionics, LLC, IPR2019-01469, Paper 6 at 8–9.” slip op. at 19

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

    “For purposes of this Decision, we do not discern a need to construe explicitly any claim language because doing so would have no effect on our analyses below of Petitioner’s asserted grounds and will not assist in resolving the present controversy between the parties. 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 10

  Claim construction§ 102 anticipation§ 103 obviousnessDiscretionary denialcites Phillips · KSR · Graham
  Patents in suitUS 10,961,602
• R.J. Reynolds Vapor Company v. Healthier Choices Management Corp.Instituted
  PTAB · Mar 12, 2025 · IPR2024-01458 · APJ Julia Heaney · IPR · Institution

  The Board instituted IPR of claims 1, 7, 8, and 11 on all asserted grounds, finding a reasonable likelihood of unpatentability on at least one claim.

  RulingsInstitution decision

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

    “information presented in the petition . . . 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). Upon consideration of the Petition in view of the record at this stage, we determine that Petitioner has established a reasonable likelihood that it would prevail in showing the unpatentability of at least one claim challenged in the Petition. Accordingly, we grant institution of an inter partes review of all claims and all grounds asserted in the Petition.1” slip op. at 2

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

    “Patent Owner’s construction of the claims as informed by its allegations of infringement in co-pending litigation, as best Petitioner is able to understand such allegations.” Pet. 18 (citing Exs. 1016–1017). Petitioner does not propose construction of any claim term at this stage of the proceeding. Upon review of the record, we determine that no claim terms require express construction for purposes of this Decision. 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 7

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “would possess at least a Bachelor’s degree in mechanical engineering, electrical engineering, industrial design or product design or product design engineering, chemistry, or physics, or a related field, and at least three to four years of industry experience, or a Master’s degree in mechanical engineering, electrical engineering, industrial design or product design or product design engineering, chemistry, or physics, or a related field, and at least one to two years of industry experience. Pet. 15 (citing Ex. 1003 ¶ 18). Petitioner further argues a “POSA would have been familiar with electrically powered cigarettes and their components and underlying technologies or similar components and technologies.” Id. For purposes of this decision, we adopt Petitioner’s definition of the level of ordinary skill in the art because it is consistent with the ’788 patent and the asserted prior art.” slip op. at 8

  • Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundReasonable expectation foundInstituted

    “second chamber. Pet 55 (citing Ex. 1005 ¶ 20, Fig. 1a). Petitioner concedes Lee does not disclose a bulb containing a heating wire, but contends this would have been obvious at least in view of Gilbert. Id. at 56 (referring to Pet. 41–42, citing Ex. 1004, 2:45–46, 2:50, 2:71–3:2, Fig. 2). Petitioner contends a person of ordinary skill in the art would have been motivated to explore other types of heating elements than the nichrome wire described in Lee due to issues with e-cigarettes at the time, such as metallic taste or inhalation risks associated with the use of a metal wire heating element. Id. at 57 (citing Ex. 1003 ¶ 117). Petitioner contends it was known to use bulb heaters for vaporizing fluids for almost 100 years (id. ¶¶ 117–118), and therefore a person of ordinary skill would have been motivated to implement a heating element within a glass bulb in Lee’s device to address the metal taste and inhalation risk issues. Pet. 57. Petitioner further contends a person of ordinary skill in the art would have been motivated to implement a heating element within a glass bulb to increase the life of the heating element and prevent failure of the device, because Levin teaches that directly contacting the heating element was known to reduce the life of the heating element, and discloses a heater bulb for vaporizing an active ingredient for inhalation by the user. Id. at 58–59 (citing Ex. 1009 ¶¶ 4, 49, 56). In view of the foregoing, we determine Petitioner has demonstrated sufficiently for purposes of institution that the combination of Lee, Gilbert, and Levin teaches or suggests limitation [1d], and that a person of ordinary skill in the art would have had reason to use Gilbert’s or Levin’s bulb heater in Lee’s electronic cigarette, with a reasonable expectation of success.” slip op. at 14

  Claim construction§ 103 obviousnesscites KSR · Graham
  Patents in suitUS 9,538,788
• Amphenol Corp. v. PPC Broadband, Inc.All claims unpatentable
  PTAB · Feb 19, 2025 · IPR2023-01363 · APJ Jon B Tornquist · IPR · Final written decision

  Claims 1, 2, and 10–13 are unpatentable as obvious over the stated combinations of Holmberg, Battey, Blankenship, and Cowen.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Petitioner contends a person of ordinary skill in the art “would have had at least a bachelor’s degree in electrical engineering, computer engineering, or a related field, and at least 1 year of experience related to communication networks or the equivalent.” Pet. 7. Petitioner further contends that “[a]dditional education could substitute for professional experience or significant experience in the field could substitute for formal education.” Id. at 7–8 (citing Ex. 1003 ¶¶ 29–31). Dr. Eldering agrees that one of ordinary skill in the art “would have had at least a bachelor’s degree in electrical engineering, computer engineering, or a related field, and at least one year of experience related to communication networks or the equivalent.” Ex. 2001 ¶ 24. According to Dr. Eldering, “[a] person with less relevant practical experience but with additional experience would also qualify.” Id. Patent Owner contends that” slip op. at 9

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

    “Although Patent Owner disagrees with Petitioner’s construction, it contends “the Board need not resolve this claim construction dispute because Petitioner’s proposed grounds 1-5 are all insufficient under either construction.” PO Resp. 19. Upon review of the parties’ arguments and the prior art of record, we determine that no claim terms require express construction for purposes of this decision. 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)). For example, we discuss below in Section III.G why we do not reach the claim construction issue presented by Petitioner.” slip op. at 11

  • Expert testimonyPetitioner expert creditedDecided for petitioner

    “We find that Holmberg expressly contemplates using its wall box within multi-dwelling units, notes that multi-dwelling wall boxes in the prior art were “typically provided” on every floor, and discloses that the multi-dwelling wall boxes would contain optical couplings for each resident on a given floor. Ex. 1004 ¶¶ 7, 34; Pet. Reply 8–10. In view of these disclosures, we credit the testimony of Dr. Kiaei that one of ordinary skill in the art would have sought to use Holmberg’s wall box in multi-dwelling units and would have seen a need to access the area behind spice tray 230 to connect and disconnect subscribers. Ex. 1003 ¶ 92; Ex. 1033 ¶¶ 7–8. Moreover, even if Holmberg were limited to mid-span locations and distributing drop cables, as opposed to distribution cables for individual subscribers, as asserted by Patent Owner, Patent Owner does not dispute that a technician would still need periodic access to the area behind splice tray 230 in these mid-span devices. Tr. 38:3–39:1 (counsel agreeing that one would need to access the area behind splice tray 230 in Holmberg, albeit in “rare occasions”); Ex. 1003 ¶¶ 90–92; Ex. 1033 ¶¶ 7–8. Thus, whether used in the manner contemplated by Petitioner or Patent Owner, Petitioner persuasively demonstrates that access to the space behind splice tray 230 in Holmberg would be necessary. With access behind splice tray 230 required, Petitioner persuasively demonstrates that one of ordinary skill in the art would have seen a benefit to replacing Holmberg’s fasteners or screws with a hinged connection, such as that disclosed in Battey, to allow easier access to the area behind the splice tray. Pet. 41 (citing Ex. 1005 ¶ 39 (disclosing that a rotatable splice tray or shelf would “provide[] full and convenient access to the splice tray”)). First, Petitioner and Dr. Kiaei persuasively demonstrate that once the fibers of Holmberg are routed from behind splice tray 230 and the distribution cables spooled on this tray, a technician could not reasonably access fiber optic cables stored behind splice tray 230 without releasing or opening splice tray 230. Pet. Reply 14–15 (citing Ex. 1023, 60:20–61:15); Ex. 1033 ¶¶ 31–32. Second, Petitioner persuasively demonstrates that without a hinged connection, the technician would have to either hold the splice tray of Holmberg with one hand while performing the necessary routing and splicing steps, two screws would need to remain in place (essentially replicating a hinge), or the tray would have to be left to dangle, supported only by the routed and spliced fibers. Pet. Reply 19–20.” slip op. at 22

  • Strike new argumentNew argument consideredDecided for petitioner

    “Allegedly New Arguments on Reply Patent Owner contends that Petitioner’s arguments regarding the benefits of a hinged connection when performing the splicing and routing steps should be dismissed or ignored because they were improperly raised for the first time on reply. Sur-reply 19–20. We disagree. The Petition asserts that one of ordinary skill in the art would have sought to add a hinged connection, such as that disclosed in Battey, in Holmberg and would have seen a benefit to so doing. Pet. 40–44. Petitioner did not change its proposed combination or its stated rationale in its Reply. Rather, in response to Patent Owner’s counter-arguments, Petitioner expands upon the benefits of its proposed combination, i.e., the substitution of a hinged connection in place of fasteners. Pet. Reply 15–21. This is permissible, as a reply may properly expand on or extend previously raised arguments relating to the motivation to make the proposed changes to the prior art. See Rembrandt Diagnostics, LP v. Alere, Inc., 76 F.4th 1376, 1385 (Fed. Cir. 2023) (explaining that the reply arguments properly relied on the same legal ground, the same prior art references, and same legal argument—the motivation to make the proposed changes to the prior art reference).” slip op. at 25

  Patent outcomesUS 9,008,483 unpatentable
  Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 9,008,483
• Apple Inc. v. RJ Technology LLCSome claims unpatentable
  PTAB · Feb 18, 2025 · IPR2023-01350 · APJ Jon B Tornquist · IPR · Final written decision

  Claims 5–10 are unpatentable as obvious; claims 11–14 were not shown unpatentable because the evidence did not establish the claimed capacity retention after 400 cycles.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Petitioner contends a person of ordinary skill in the art “would have held a Bachelor’s degree in chemistry or chemical engineering, with at least 4 years of experience in cell design, electrochemical techniques, and battery materials development.” Pet. 4. Petitioner further contends that a “Master’s Degree can substitute[] for some of the relevant experience,” and “[e]quivalent training with battery specific experience can accommodate other degreed fields.” Id. 9 The parties here do not address objective evidence of nonobviousness. Patent Owner does not dispute Petitioner’s definition of the ordinarily skilled artisan. PO Resp. 20. We adopt Petitioner’s unopposed definition of the person of ordinary skill in the art as it is consistent with the ’641 patent, the prior art of record, and the parties’ arguments.” slip op. at 6

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

    “The parties agree that the term “charge cut-off voltage” is “the maximum voltage to which the battery is configured to be charged.” PO Resp 21–22; Pet. Reply 1. The parties dispute, however, whether the “charge cut-off voltage” is a “battery property” or “the voltage applied to the battery during charging.” PO Resp. 21–24; Pet. Reply 1–6. We need not resolve the precise meaning of “charge cut-off voltage” because there is no dispute that Yamaki discloses this limitation under either party’s interpretation of the claim term. Upon review of the prior art and the parties’ arguments, we determine that no terms of the ’641 patent require express construction. 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))); Pet. Reply 1 (asserting that the challenged claims are unpatentable under either parties’ construction of “charge cut-off voltage”).” slip op. at 7

  • Obviousness (§103) › Motivation to combine / reasonable expectation of successUnpatentableMotivation foundUnpatentable

    “Patent Owner’s arguments do not persuasively undermine Petitioner’s position. Sakamoto expressly discloses setting the ratio of negative to positive electrode active material in the range of 1.05 to 1.30. Ex. 1005 ¶ 8. Sakamoto also explains why this range is preferable, i.e., if the ratio is roughly equal “the charge-discharge cycle performance is insufficient due to significant deterioration from charging and discharging,” and if the ratio is 10 Citations to the prosecution history of Yamaki are to the page numbers added to the lower right corner of the document. too high “too much of the compound does not participate in charging and discharging.” Id. ¶¶ 6, 8. These disclosures are sufficient to explain why one of ordinary skill in the art would have found it obvious to select the ratios disclosed in Sakamoto in Yamaki. Id. ¶ 8 (providing a secondary battery with a capacity ratio between 1.05 and 1.30 and noting that by setting the ratio within this range the resulting secondary lithium battery is “safe due to low risk of heat being generated and an explosion occurring”). We also disagree that Sakamoto teaches away from elevated voltages or from increasing the amount of lithium in circulation. See PO Resp. 29. Contrary to Patent Owner’s arguments, Sakamoto provides no general teaching against using a charge cut-off voltage above 4.2 V, or against increasing the level of lithium in circulation. Nor does Sakamoto “criticize, discredit, or otherwise discourage” the claimed invention. In re Fulton, 391 F.3d 1195, 1201 (Fed. Cir. 2004). Rather, Sakamoto warns against setting the reversible capacities of the positive and negative electrode substantially equal as this may result in excess lithium plating on the surface of the electrode. Ex. 1005 ¶¶ 6, 8. We agree with Petitioner that this disclosure would lead one of ordinary skill in the art to design a battery with a higher capacity in the negative electrode active material than the positive electrode active material. Pet. 11–12.” slip op. at 14

  • Obviousness (§103) › Motivation to combine / reasonable expectation of success › Teaching awayTeaching away not foundDecided for petitioner

    “We also disagree that Sakamoto teaches away from elevated voltages or from increasing the amount of lithium in circulation. See PO Resp. 29. Contrary to Patent Owner’s arguments, Sakamoto provides no general teaching against using a charge cut-off voltage above 4.2 V, or against increasing the level of lithium in circulation. Nor does Sakamoto “criticize, discredit, or otherwise discourage” the claimed invention. In re Fulton, 391 F.3d 1195, 1201 (Fed. Cir. 2004). Rather, Sakamoto warns against setting the reversible capacities of the positive and negative electrode substantially equal as this may result in excess lithium plating on the surface of the electrode. Ex. 1005 ¶¶ 6, 8. We agree with Petitioner that this disclosure would lead one of ordinary skill in the art to design a battery with a higher capacity in the negative electrode active material than the positive electrode active material. Pet. 11–12.” slip op. at 15

  Patent outcomesUS 7,749,641 mixed
  Claim construction§ 103 obviousnesscites KSR · Graham
  Patents in suitUS 7,749,641
• Posco Future M Co., Ltd. v. Camx Power LLCInstitution denied
  PTAB · Feb 5, 2025 · IPR2024-01229 · APJ Jane E Inglese · IPR · Institution

  The Board denied institution because Petitioner did not show a reasonable likelihood that any challenged claim was anticipated or obvious over the asserted references.

  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) (“The Board institutes the trial on behalf of the Director.”). Inter partes review may not be instituted “unless . . . the information presented in the petition . . . 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).” slip op. at 2

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

    “Conceptronic, Inc., 90 F.3d 1576, 1582 (Fed. Cir. 1996) (“First, we look to the words of the claims themselves . . . to define the scope of the patented invention.”). Claim 1 recites a particle that comprises (1) a plurality of crystallites comprising (a) a first composition (i) having a layered α- NaFeO2-type structure and (ii) comprising lithium, nickel, and oxygen; and (2) a grain boundary between adjacent crystallites of the plurality of crystallites and comprising (a) a second composition (i) having the layered α-NaFeO2-type structure, a cubic structure, or a combination thereof, and (ii) a concentration of cobalt in the grain boundary greater than a concentration of cobalt in the crystallites. The plain language of claim 1 thus indicates that the grain boundary has a composition (i.e., a “second composition”) distinct from that of the adjacent crystallites (i.e., a “first composition”), and that the grain boundary may have the same structure (i.e., a layered α-NaFeO2-type structure) or a different structure (i.e., a cubic structure, or a combination of a cubic structure and a layered α-NaFeO2-type structure) than the adjacent crystallites. The plain language of claim 1 thus structurally distinguishes the grain boundary from the adjacent crystallites by specifying that the grain boundary has a concentration of cobalt greater than that of the concentration of cobalt in the crystallites.” slip op. at 9

  • Novelty / Anticipation (§102) › Anticipation standard (single reference, every element) › Inherent disclosureNot shown unpatentableNot shown unpatentable

    “Petitioner, however, does not provide any evidence to establish that any such identity of empirical formulas means that Lampe-Onnerud’s cathode material necessarily has the same microstructure as the particle of claim 1. In particular, even if the empirical formula of Lampe-Onnerud’s core material is the same as that of the ’317 patent’s first composition, Petitioner does not provide evidence establishing that it necessarily follows that Lampe-Onnerud’s core is a polycrystalline material having a plurality of crystallites separated by grain boundaries between adjacent crystallites. Nor does Petitioner provide evidence establishing that it necessarily follows from any identity between the empirical formula of Lampe-Onnerud’s coating material and the ’317 patent’s second composition that Lampe-Onnerud’s coating material necessarily is present in grain boundaries at a higher concentration than in crystallites, assuming that Lampe-Onnerud’s material is comprised of a plurality of crystallites having grain boundaries between adjacent crystallites. Furthermore, although Petitioner’s declarant, Dr. Aurbach, indicates that Lampe-Onnerud’s process “begins with a conventional lithium nickel oxide-base material . . . known to be comprised of secondary articles having agglomerated primary particles and grain boundaries,” Dr. Aurbach does not provide any objective evidence to substantiate this asserted knowledge in the art. Ex. 1002 ¶ 110. We, therefore, accord little weight to Dr. Aurbach’s opinion on this issue. 37 C.F.R. § 42.65(a) (opinion testimony that does not disclose underlying facts or data “is entitled to little or no weight”); Velander v. Garner, 348 F.3d 1359, 1371 (Fed. Cir. 2003) (“[W]hat the Board consistently did was accord little weight to broad conclusory statements that it determined were unsupported by corroborating references. It is within the discretion of the trier of fact to give each item of evidence such weight as it feels appropriate.”); In re Am. Acad. of Sci. Tech Ctr., 367 F.3d 1359, 1368 (Fed. Cir. 2004) (“[T]he Board is entitled to weigh the declarations and conclude that the lack of factual corroboration warrants discounting the opinions expressed in the declarations.”).” slip op. at 18

  • Expert testimonyPetitioner expert discountedDecided for patent owner

    “Furthermore, although Petitioner’s declarant, Dr. Aurbach, indicates that Lampe-Onnerud’s process “begins with a conventional lithium nickel oxide-base material . . . known to be comprised of secondary articles having agglomerated primary particles and grain boundaries,” Dr. Aurbach does not provide any objective evidence to substantiate this asserted knowledge in the art. Ex. 1002 ¶ 110. We, therefore, accord little weight to Dr. Aurbach’s opinion on this issue. 37 C.F.R. § 42.65(a) (opinion testimony that does not disclose underlying facts or data “is entitled to little or no weight”); Velander v. Garner, 348 F.3d 1359, 1371 (Fed. Cir. 2003) (“[W]hat the Board consistently did was accord little weight to broad conclusory statements that it determined were unsupported by corroborating references. It is within the discretion of the trier of fact to give each item of evidence such weight as it feels appropriate.”); In re Am. Acad. of Sci. Tech Ctr., 367 F.3d 1359, 1368 (Fed. Cir. 2004) (“[T]he Board is entitled to weigh the declarations and conclude that the lack of factual corroboration warrants discounting the opinions expressed in the declarations.”).” slip op. at 19

  Claim construction§ 102 anticipation§ 103 obviousnesscites Phillips · Graham
  Patents in suitUS 9,391,317
• Opticis Co., Ltd. v. Inneos LLCAll claims unpatentable
  PTAB · Jan 29, 2025 · IPR2023-01256 · APJ Terry J Owens · IPR · Final written decision

  Claims 1, 2, 6, 7, and 9 are unpatentable as obvious over Kurita and Lemoff, with the Board declining to reach the remaining grounds.

  RulingsFinal written decision

  • Skill levelSkill level board ownDecided for petitioner

    “We accept the level of ordinary skill in the art stated by Petitioner and agreed with by Patent Owner with the exception of the open-ended language appears consistent with the ’416 patent and the prior art of record.” slip op. at 7

  • Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed petitioner constructionDecided for petitioner

    “describe elements that are not affirmatively recited in the claims, and in view of the “bedrock principle of patent law that the claims of a patent define the invention,” we conclude that none of the unrecited limitations identified by Patent Owner are required by the claims. See Thorner v. Sony Entm’t Am. LLC, 669 F.3d 1362, 1366 (Fed. Cir. 2012) (explaining that the standard for disavowal is “exacting,” and the use of “the present invention” is not necessarily sufficient to meet this standard).” slip op. at 12

  • Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundDecided for petitioner

    “art would not have modified Kurita in view of Lemoff because Lemoff positions the signal emitters near the fiber to emulate WDM without the need for an external optical multiplexer or a similar device and discourages using optical wavelength multiplexers for short distances because the complexity of the design is often cost prohibitive (PO Resp. 47–48), Lemoff does not appear to limit the usefulness of the fiber connector to any particular optical signal transmission distance. Petitioner relies upon Lemoff for a suggestion to combine Lemoff’s fiber connector configuration teachings with Kurita’s multiplexer teachings to enable fibers to be plugged Fig. 2) (Pet 29, 31; Reply 17–18). Regarding Patent Owner’s argument that one of ordinary skill in the art would not have combined Lemoff’s receptacle and ferrule with discrete components in Kurita because the fiber would need to be manually fixed and aligned with or without a ferrule and, therefore, would serve no purpose (PO Resp. 48), Lemoff’s fiber connector appears to fix and align the fiber adequately for wavelength division multiplexing without manual fixation or alignment being required (Ex. 1006, 5:65–6:2, Fig. 2; Reply 18). The challenged claims do not require any greater degree of fixing and alignment than that provided by Lemoff’s fiber connector. Regarding Patent Owner argument that Lemoff’s device is not physically combinable with Kurita’s WDM multiplexer due to Lemoff’s device’s small size (PO Resp. 47–48; Reply 17–18), “[t]he test for obviousness is not whether the features of a secondary reference may be bodily incorporated into the structure of the primary reference.... Rather, the test is what the combined teachings of the references would have suggested to those of ordinary skill in the art” (In re Keller, 642 F.2d 413, 425 (CCPA 1981)). Accordingly, we are not persuaded by Patent Owner’s argument.” slip op. at 26

  • Obviousness (§103) › Graham factors (scope of art, differences, level of skill)UnpatentableUnpatentable

    “stopped single optical fiber because fixing it in place does not passively align it with the optical components (PO Resp. at 35–37) is not persuasive because fixing Kurita’s fiber (40) in place in accord with Lemoff’s teaching regarding the ferrule (255) inserted until being stopped by the receptacle (260) (Ex. 1006, 5:50–6:15, Fig. 2) would align Kurita’s optical array (20), and lens (30)) (Ex. 1004 Fig. 3) passively in the same manner that Lemoff’s ferrule (255), after being inserted until stopped by the receptacle (260), passively aligns the optical fiber (250) with the optical components (optical imaging element 220 and light emitters within emission apertures 120) (Ex. 1006, 5:50–6:15, Fig. 2; Reply 15–16). Regarding Patent Owner’s argument that the light from each of Kurita’s lasers (11) depicted in Figure 3 cannot pass through a separate focusing lens (30) pie shaped sector because the lasers (11) and collimating lenses (21) are arranged linearly rather than being arranged about a circular axis (PO Resp. at 37–42), we do not agree. Claim 1 requires “focusing means having n separate radial sectors on its surface, and each of said n collimated beams passes through a separate one of said n sectors of said focusing means” (Ex. 1001, 5:34–37), claim 2 requires “four lasers and four collimating lenses are each formed in a two-dimensional, two by two array [centered on the focal axis of lens 30], wherein said focusing means is a single focusing lens, and wherein each radial sector is a pie-shaped quadrant” (id. at 5:41–44), and claim 7 requires “focusing means having four separate quadrants on its surface, and each of said four collimated beams passes through a separate one of said quadrants of said focusing means” (id. at 6:35–38). Kurita meets those claim requirements. Kurita’s two by two array (10A) of lasers (11), collimating lens (21) array (20), and focusing lens (30) are shown in Kurita’s Figure 3 (cropped) as follows: The image is a portion of Kurita’s Figure 3 showing Kurita’s laser array, collimating lens array, and focusing lens (30). Relative to a point at the center of the laser array (10A) or the collimating lens array (20), each laser (11) and each collimating lens (21) is in a separate quadrant that can be a quadrant of a circle (pie-shape) on lens 30 (Reply 12– 13, Ex. 1003 ¶¶ 85–91).” slip op. at 23

  Patent outcomesUS 7,198,416 unpatentable
  Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 7,198,416
• Formfactor, Inc. v. Technoprobe S.P.A.Instituted
  PTAB · Jan 24, 2025 · IPR2024-00933 · APJ Andrew L Nalven · IPR · Institution

  Instituted IPR on all challenged claims, 1–23, and all asserted grounds after finding a reasonable likelihood that at least one challenged claim is unpatentable.

  RulingsInstitution decision

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

    “Pursuant to 35 U.S.C. § 314(a), an inter partes review may not be instituted “unless . . . there is a reasonable likelihood that the petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” After considering the Petition, the Preliminary Response, and associated evidence, we determine that Petitioner has demonstrated a reasonable likelihood of prevailing in demonstrating the unpatentability of claims 1–23 of the ’885 patent. Accordingly, we institute an inter partes review.” slip op. at 2

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “engineering, and materials engineering or another field applicable to wafer probing technology with three to five years of professional experience in designing and/or using probe technologies, or an equivalent level of skill, knowledge, and experience.” Pet. 22 (citing Ex. 1003 ¶¶ 50–53). Patent Owner does not offer a position as to the level of ordinary skill in the art. See generally Prelim. Resp. For purposes of this Decision, we adopt Petitioner’s definition of a POSITA, which is consistent with the level of skill reflected in the Specification and asserted prior art.” slip op. at 10

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

    “Only those claim terms that are in controversy need to be construed, and only to the extent necessary to resolve the controversy. Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 868 F.3d 1013, 1017 (Fed. Cir. 2017). After reviewing the record, at this stage, we determine that only claim 14 requires express construction for purposes of this Decision.” slip op. at 9

  • Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed petitioner constructionDecided for petitioner

    “Further, we interpret claim 14, for purposes of this Decision, as contemplated by Petitioner such that the first and second types of signals may be the same type of signal. Pet. 26. In other words, the first and second type of signal may both be ground or power. This construction appears to have support within the ’885 patent. For example, the ’885 patent describes an embodiment where “at least two conductive portions . . . of the guide 40 are electrically connected to each other by means of a conductive track 39 in the guide, so as to be able to electrically connect to each other groups of contact elements apt to carry a same type of signal.” Ex. 1001, 16:49–59. This construction also appears consistent with parent claim 1, which recites “the first and second types of signals chosen between ground signals and power signals.” The parties are invited to address any claim construction issues during the course of trial.” slip op. at 9

  Claim construction§ 102 anticipation§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 11,035,885
• Samsung Electronics Co., Ltd. / Apple Inc. v. RJ Technology LLCSome claims unpatentable
  PTAB · Jan 17, 2025 · IPR2024-00597 · APJ Jon B Tornquist · IPR · Final written decision

  Claims 2–4 and 6–18 are unpatentable as obvious over Abe and Guyomard, with claims 9–10 also obvious over Iwaizono; claims 1 and 5 were not shown unpatentable.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Petitioner contends that a person of ordinary skill in the art “would have had a Master’s degree in material science, chemical engineering, chemistry, or similar field with four years of experience designing testing, and building secondary lithium batteries.” Pet. 11 (citing Ex. 1002 ¶ 51). Petitioner further contends that a person of ordinary skill in the art would have been aware of “(1) positive electrode materials, (2) negative electrode materials, (3) separators, (4) electrolytes, (5) charge-discharge parameters, and (6) protection circuits, as well as ‘battery failure modes’ such as plating and the formation of dendrites.” Id. (citing Ex. 1002 ¶¶ 50–51). Patent Owner “does not dispute Petitioner’s level of ordinary skill.” PO Resp. 17. Upon review of the prior art of record and the parties’ arguments, we adopt Petitioner’s unopposed definition of the person of ordinary skill in the art as it is consistent with the disclosures of the ’641 patent and the prior art of record.” slip op. at 9

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

    “We also agree with Patent Owner that the charge cut-off voltage is not necessarily the applied voltage during charging. PO Resp. 20. Rather, depending on the charging protocol used and when in the charging cycle the voltage is applied, the applied voltage could be higher than the battery voltage. Ex. 2013; Ex. 2006 ¶ 91. For example, as discussed in more detail below with respect to the Uemura grounds, when fast charging using constant current is used and the charging rate is not slow, the applied voltage will be higher than the battery voltage when the constant current charging phase is stopped. Ex. 2006 ¶ 91; Ex. 2013. Likewise, during constant current/constant voltage charging, the applied voltage approximates the battery voltage only when the battery is nearly completely charged. Ex. 2013; Ex. 2006 ¶ 91. Thus, the applied voltage may be, but is not necessarily, the charge cut-off voltage. In view of the foregoing, we construe “charge cut-off voltage” in claims 1 and 5 as “the maximum value to which the battery is configured to be charged.” PO Resp. 18; Ex. 2008, 217:6–11; Pet. Reply 5. Contrary to Patent Owner’s arguments, however, we do not understand the phrase “configured to be charged” to necessarily represent a single voltage for the battery that is determined based on the structure and chemistry of the battery. Pet. Reply 4–5. Rather, the charge cut-off voltage is a selected potential, or voltage, of the battery or cell at the end of charging that is controlled by a circuit or device, such as a charger or control circuit within the battery. Ex. 1001, 9:50–55; Ex. 1048, 2, 7–8; Ex. 1008, 3:9–13. And, for the reasons discussed herein, the charge cut-off voltage may be, but is not necessarily, the same as the applied voltage during charging. PO Resp. 20.” slip op. at 15

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

    “charge cut-off voltage “greater than 4.2 V but less than 5.8 V” and calculating a specific or theoretic capacity “with a charge cut-off voltage limited to 4.2” (claim 1) or “with a charge cut-off voltage set at 4.2 V” (claim 5). Ex. 1001, 16:56–61, 17:6–11. Although the parties dispute the precise scope of these claim terms, the parties agree that the first use of “charge cut-off voltage” in claims 1 and 5 refers to the potential of the battery as a whole (between the cathode and the anode), and not a half-cell voltage using lithium metal as a counter electrode.10 Tr. 17:1–3 (agreeing 10 With respect to the phrase “as calculated by a theoretic capacity with a charge cut-off voltage set at 4.2 V,” the parties in fact appear to be in that the first use of “charge cut-off voltage” in claim 5 refers to a full-cell voltage); Sur-reply 5; PO Resp. 22. We need not further construe the claims to resolve the disputes between the parties. See Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 868 F.3d 1013, 1017 (Fed. Cir. 2017) (quoting Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999) (“[O]nly those terms need be construed that are in controversy, and only to the extent necessary to resolve the controversy.”)).” slip op. at 16

  • Expert testimonyPatent owner expert creditedDecided for patent owner

    “Given Mr. Juzkow’s unambiguous testimony that Uemura uses constant current charging that would stop when the applied voltage reached 11 The chart is reproduced from SAFT, Charging your lithium-ion batteries: 5 expert tips for a longer lifespan, (https://www.saft.com/energizing-iot/charging-your-lithium-ion-batteries-5-expert-tips-longerlifespan#:~: text=When%20the%20battery%20provides%20current,This%20restore s%20the%20battery's%20capacity). 4.3 V, as well as Dr. Yao’s persuasive testimony that Uemura’s constant charging rate is not slow, we credit the testimony of Dr. Yao that one of ordinary skill in the art would have understood that the internal voltage to which the battery of Uemura was charged is less than 4.3 V. Ex. 2006 ¶ 119. In particular, Dr. Yao persuasively testifies that one of ordinary skill in the art would have believed that the charge cut-off voltage was no more than 4.2 V, and most likely equal to “about 4 V.” Id. ¶¶ 119–122.” slip op. at 21

  Patent outcomesUS 7,749,641 mixed
  Claim construction§ 102 anticipation§ 103 obviousnesscites KSR · Graham
  Patents in suitUS 7,749,641

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.