PTAB
Advanced fields
4 decisions · 428msnewest first
  • 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
  • PTAB · Jan 17, 2025 · IPR2023-01183 · 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 and 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

      “constructions. First, we agree with Petitioner that the ’641 patent indicates that the charge cut-off voltage selected for a particular battery need not be a fixed property of the battery or something that is set by the design and chemistry of the battery. Consistent with this conclusion, the ’641 patent discloses that a “charging device controls the charge cut-off voltage of the single lithium-ion cell within a range from 4.3 V to 5.8 V.” Ex. 1001, 9:50– 55. This strongly suggests that the charge cut-off voltage is controlled by the charger and is not necessarily an inherent property of the battery. Patent Owner contends that this is merely an unclaimed embodiment, but the relevant disclosure states that the charging device for the “present invention” may be any type of device “with the proviso that said charging device controls the charge cut-off voltage.” Id. at 9:50–53.” slip op. at 12

    • 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 creditedPetitioner expert discountedDecided 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. Petitioner argues that because the battery of Uemura is charged “to” a maximum voltage of 4.3 V, Uemura discloses the claimed charge cut-off voltage under either Petitioner’s or Patent Owner’s construction of the term. Pet. Reply 11–12 (citing Ex. 1009 ¶ 81; Ex. 1044 ¶¶ 56–59). This argument is not persuasive because Mr. Juzkow unambiguously testified that charging in Uemura stopped when the applied voltage reached 4.3 V, and Uemura discloses that the battery was charged “at” a voltage ranging from 4.3 V to 2.0 V, not “to” such a voltage. Ex. 1009 ¶ 81; Ex. 2008, 113:2–13; Ex. 2006 ¶ 119 n.64; Sur-reply 9. In view of the foregoing, we determine that Petitioner has not demonstrated by a preponderance of the evidence that Uemura anticipates independent claims 1 and 5 of the ’641 patent.” slip op. at 21

    Patent outcomesUS 7,749,641 mixed
    Claim construction§ 102 anticipation§ 103 obviousnesscites KSR · Graham
    Patents in suitUS 7,749,641
  • PTAB · Feb 13, 2023 · IPR2021-01325 · APJ Jameson Lee · IPR · Final written decision

    Claims 70–73, 75–80, 84, 89–92, 94–97, 99, 103, and 107 are unpatentable as obvious; claims 74 and 93 were not shown unpatentable.

    RulingsFinal written decision
    • Skill levelSkill level board ownDecided for petitioner

      “In the Decision to Institute, we adopted Petitioner’s articulation of the level of ordinary skill in the art, sans the qualifier “at least” for the level of education and for the amount of experience, to keep the level from being vague and overbroad and extending into the level of an expert. Inst. Dec. 11. Post institution, neither party disputes our adopted level of ordinary skill in the art. That level is consistent with what is reflected by the content of the applied prior art references. Cf. Okajima v. Bourdeau, 261 F.3d 1350, 1354–55 (Fed. Cir. 2001) (the applied prior art may reflect an appropriate level of skill). Accordingly, we adhere to the level of ordinary skill in the art as adopted in the Decision to Institute, i.e., one of ordinary skill in the art would have had a Bachelor’s degree in an academic area emphasizing electrical engineering, computer science, or a similar discipline, and two years of experience in the field working with, teaching, or researching stereoscopic and/or virtual/augmented reality (VR/AR) display technologies. C.” slip op. at 11

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

      “Pet. 8 (footnote omitted). Patent Owner has not proposed a construction for either “cursor,” “3D cursor,” or “three-dimensional cursor.” Nor did Patent Owner express disagreement in its Preliminary Response with Petitioner’s proposed construction. In the Decision to Institute, we agreed with and adopted Petitioner’s proposed construction. Inst. Dec. 13. Post institution of review, Patent Owner has not objected to or disagreed with the construction we adopted. Accordingly, we adhere to our preliminary construction that “three-dimensional cursor” means “three-dimensional indicator movable within a three-dimensional image, image space, and volume.”9” slip op. at 15

    • Expert testimonyPetitioner expert discountedDecided for patent owner

      “known term of art (Reply 15),10 Petitioner does not specifically articulate what that meaning is as an established term of art. In that regard, Petitioner cites to paragraph 17 of the second declaration of Dr. Fuchs (Ex. 1039), which states, in its entirety: Based on my experience, a POSITA would have understood “measurement markings” to mean markings that are used for measurements. The measurements can be of various types, e.g., distances, locations, orientation. MS-1001, 6:47–7:8. This would be the plain and ordinary meaning of the term according to a POSITA. Ex. 1039 ¶ 17. That testimony does not support treating “measurement markings” as an established term of art having a common meaning to those of ordinary skill in the art. Dr. Fuchs cites to no examples of how the term 10 Petitioner also states that the term should be construed according to its plain and ordinary meaning. Reply 15. common and specific meaning across those patents and publications, and in particular with the broad meaning urged by Petitioner. We accord very little weight to his testimony with regard to Petitioner’s assertion that “measurement markings” is a term of art. See 37 C.F.R. § 42.65 (“Expert testimony that does not disclose the underlying facts or data on which the opinion is based is entitled to little or no weight”). The general testimony also does not comport with or match the more narrow usage within the disclosure of the ’457 patent as discussed above. See Wi-Lan, Inc. v. Apple Inc., 811 F.3d 455, 462 (Fed. Cir. 2016) (extrinsic evidence “is generally of less significance than the intrinsic record” in matters of claim construction). Dr. Fuchs also does not state that “measurement markings” is an established term of art with a common meaning to those of ordinary skill in the art.” slip op. at 23

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

      “[A] POSITA would have combined Avila’s display interface that shows orthogonal cross-sectional imaging slices and a selected 3D ROI on the same display screen (see Avila’s FIG. 10) with Acosta’s teachings so that a viewer (e.g., a physician) could see a 3D image of an anatomical structure and corresponding 2D orthogonal cross-sectional imaging slices in areas of interest. MS-1003, ¶[61]. In other implementations, the 3D sampling probe/cursor can be displayed along with background portions of the 3D volume and 2D cross-sectional imaging slices. MS-1007, 6:12–67; MS-1005, ¶[0096]. In this manner, the viewer would have multiple views of the selected 3D ROI by itself or within a 3D image (options disclosed by Acosta) along with relevant slice views. MS-1005, ¶[0096]; MS-1003, ¶[61]. Pet. 17. Acosta and Avila such that orthogonal cross-sectional imaging slices would be displayed in Acosta’s system has evidentiary support and rational underpinning. Patent Owner presents no argument regarding the alleged reasoning to combine teachings. We are persuaded by Petitioner’s articulation of the reasoning to combine such that orthogonal cross-sectional imaging slices as taught by Avila would be displayed in Acosta together with the 3D cursor.” slip op. at 46

    Patent outcomesUS 10,795,457 mixed
    Claim construction§ 103 obviousnesscites KSR · Graham
    Patents in suitUS 10,795,457
  • PTAB · Nov 21, 2022 · IPR2021-00917 · APJ Brent M Dougal · IPR · Final written decision

    Claims 7–9 and 12 are unpatentable as anticipated by Numazaki; claims 11 and 13 were not shown unpatentable.

    RulingsFinal written decision
    • Claim Construction › Intrinsic evidence (Phillips canons) › Preamble limiting or notPreamble limitingDecided for patent owner

      “We agree that the preamble of claim 7 is limiting. The last clause of claim 7 refers back to the preamble and is understood with reference thereto. The last clause states: “means for controlling a function of said apparatus using said information.” Ex. 1001, 26:4–5 (emphasis added). “Said apparatus” derives antecedent basis from the “[h]andheld computer apparatus” recited in the preamble. “Said apparatus” does not refer to “apparatus” in the abstract, dissected from the rest of the term. Moreover, the “means for controlling a function of said apparatus” can be understood because of this reference to the handheld computer apparatus. We disagree with Petitioner that the “handheld computer” portion of the term “[h]andheld computer apparatus” can be ignored. The claim defines the “apparatus” as a “[h]andheld computer apparatus,” and we determine that there is no legal basis for us to dissect this phrase. Petitioner argues that the body of claim 7 only refers to the “apparatus” and not to “handheld computer,” thus “handheld computer” is not essential. But the term is “[h]andheld computer apparatus” not merely “apparatus,” and the body of apparatus.” Thus, we determine that the single term in the preamble, “[h]andheld computer apparatus,” is limiting because it recites essential structure and is “necessary to give life, meaning, and vitality” to claim 7.” slip op. at 9

    • Claim Construction › Functional claiming / §112(f) means-plus-function › Whether §112(f) applies (Williamson, nonce words)§112(f) appliesNo construction neededOther

      “Though the parties disagree as to whether the term should be construed as a means-plus-function limitation under §112 ¶ 6, both constructions essentially encompass cameras, and therefore it is unnecessary for us to construe as resolution of the dispute does not turn on whichever construction we pick.” slip op. at 10

    • Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)UnpatentableNot shown unpatentableMixed

      “As the Petition does not identify a cell phone in Numazaki as teaching the limitation of claim 11 it cannot show how the Numazaki teaches all of the limitations of the claim. Further, even under Petitioner’s own construction the Petition is deficient. The Petition contains no analysis of how Numazaki’s transmission unit 356 corresponds with the structure of a mobile phone link or equivalents this shortcoming by stating that the “transmission unit” “is part of a ‘TV telephone’ embodiment” in Numazaki; and further arguing that the “transmission unit” is a “functional equivalent for transmitting information.” Reply 22 (emphasis omitted). Notably absent from Petitioner’s argument is an explanation of how the “transmission unit” is a functional equivalent to a mobile phone link. Thus, Petitioner makes no assertion that the transmission unit is the same as or equivalent to the structure Petitioner has identified in the ’431 patent as the relevant structure under 35 U.S.C. §112 ¶ 6. For these reasons, Petitioner has not satisfied its burden with respect to its own claim construction. As discussed above, the Petition fails to show how Numazaki teaches the limitation of claim 11 whether under our claim construction or Petitioner’s.” slip op. at 27

    • Obviousness (§103) › Analogous artNot reached

      “As noted previously, Petitioner bears the burden to demonstrate unpatentability. Dynamic Drinkware, LLC, 800 F.3d at 1378. At this stage Petitioner must show that the claims are unpatentable by a preponderance of the evidence. Petitioner has not met its burden. For example, Petitioner merely asserts that the word “remote” means “physically separate” without explanation. Petitioner does not address or explain how “remote” is used in the context of Cousins. Petitioner does not address the specific teachings related to an “expert system” in Cousins or how they would be understood in context. Petitioner does not explain why system” (Pet. 20–21) means that the expert system is within the housing of or part of the imaging device.” slip op. at 38

    Patent outcomesUS 7,933,431 mixed
    Claim construction§ 102 anticipation§ 103 obviousnesscites Graham
    Patents in suitUS 7,933,431

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.