- Clearwater Paper Corporation v. Graphic Packaging International LLCAll claims unpatentablePTAB · Sep 23, 2026 · IPR2025-00878 · APJ Carl M Defranco · IPR · Final written decision
Claims 1–3 and 11 are unpatentable as anticipated by Cleveland and obvious over Nakagawa and over Nakagawa combined with Tanner.
RulingsFinal written decision- Skill levelSkill level petitioner adoptedDecided for petitioner
“would have at least a bachelor’s degree in mechanical or chemical engineering, materials science, polymer science, or equivalent coursework, at least a year of experience developing paper-based laminates involving the application of polymer coatings to a substrate, and the appropriate industry familiarity with biodegradability standards and degradability techniques [and] . . . [l]ess work experience may be compensated by a higher level of education, such as a master’s degree, and vice versa. Pet. 16 (citing Ex. 1003 ¶ 50). Clearwater’s definition is uncontested, and we apply that definition here, as it accords with the level of skill reflected in the asserted prior art and the problems addressed in the specification of the ’126 patent. C. Claim Construction” slip op. at 6
- Expert testimonyPetitioner expert creditedDecided for petitioner
“We have reviewed the cited testimony of Clearwater’s expert, including their calculations for arriving at a coat weight in Nakagawa that falls within the claimed range. See Ex. 1003 ¶¶ 132–33. We find that testimony, which is unrebutted, both credible and supported by the evidence of record. Thus, in light of Clearwater’s contentions, the cited portions of Nakagawa, and the unrebutted testimony of Clearwater’s expert, we are persuaded that Nakagawa discloses or otherwise suggests each and every element of claim 1. See Pet. 45–54, 60–64. Clearwater also persuades us that Cleveland discloses the additional subject matter of dependent claims 2, 3, and 11. See Pet. 64–66. Thus, we determine that Clearwater demonstrates that claims 1–3 and 11 are unpatentable as obvious over Nakagawa. F. Ground 3—Obviousness Over Nakagawa and Tanner” slip op. at 17
- Novelty / Anticipation (§102) › Prior-art status of a reference › Patents / published applications (effective date, provisional support)Reference is prior artDecided for petitioner
“qualifies as prior art under 35 U.S.C. § 102(e)(1) “based on both its provisional and non-provisional filing dates.” Inst. Dec. 4 n.5. We were persuaded by Clearwater’s proof that Cleveland’s provisional (Ex. 1006) is “virtually identical” to Cleveland itself (Ex. 1005) and that the provisional provides written description support for at least claim 1 of Cleveland. See Pet. 18–21 (citing Ex. 1006, 2–6, 9). We were also persuaded by Clearwater’s showing that the provisional provides written support for the subject matter relied upon in Cleveland. Id. at 21–40 (citing Ex. 1006, 1–9). We are still persuaded by Clearwater’s showing. Thus, we see no reason to disturb our earlier finding that Cleveland is prior art to the ’126 patent.” slip op. at 7
- Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)UnpatentableUnpatentable
“protectant layers has “a coat weight of from 5 to 30 lbs/3000 ft2.” As noted by Clearwater, Cleveland discloses a total coat weight for layers 14 and 16 as falling within the claimed range. Pet. 32–34 (citing Ex. 1005 ¶ 32). In particular, Cleveland discloses that “the coextruded layer of copolyester (irrespective of which side of the substrate the layer is disposed) is of a total coat weight of between about 10 and about 40 lb/3000 ft2 in any combination of between about 80/20 to 20/80 parts by weight of Ecoflex to Biomax,” of which “a total coat weight of 25 lb/3000 ft2 is preferred.” Ex. 1005 ¶ 32. As disclosed, Cleveland’s total coat weight range of 10–40 lb/3000 ft2 falls almost entirely within the claimed range, and the preferred total coat weight of 25 lb/3000 ft2 falls squarely within the claimed range. Thus, Cleveland satisfies claim elements [1.3.2] and [1.5.2]. See Titanium Metals Corp. v. Banner, 778 F.2d 775, 782 (Fed. Cir. 1985) (“[W]hen, as by a recitation of ranges or otherwise, a claim covers several compositions, the claim is anticipated if one of them is in the prior art.”) (citation omitted). As such, we find that Clearwater adequately demonstrates that Cleveland discloses all the elements of claim 1. 4. Dependent Claims” slip op. at 12
Patent outcomesUS 8,637,126 unpatentable§ 102 anticipation§ 103 obviousnesscites PhillipsPatents in suitUS 8,637,126 - PTAB · Jan 14, 2026 · IPR2025-01191 · APJ Kara L Szpondowski · IPR · Institution
The Board instituted IPR on claims 1–24 and all asserted grounds because the petition showed a reasonable likelihood of prevailing on at least one claim.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“Institution of an inter partes review is authorized when “the information presented in the petition . . . and any 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.” 35 U.S.C. § 314(a). Based on the current record, and for the reasons explained below, we determine that Petitioner has established a reasonable likelihood that it would prevail with respect to at least one challenged claim, and we institute an inter partes review.” slip op. at 2
- PTAB / AIA Trials › Discretionary denial › §325(d) same art / argumentsNot reached
“IV. PATENT OWNER’S 35 U.S.C. § 325(D) ARGUMENTS Patent Owner presents arguments directed to discretionary considerations under 35 U.S.C. § 325(d) and requests the Petition be denied based on these arguments. Prelim. Resp. 2–16. However, Patent Owner’s § 325(d) arguments are untimely under the “Interim Director Discretionary Process,”6 and, as such, will not be considered by the Board. See Section I.C. (“The . . . patent owner should not present discretionary considerations in the . . . Patent Owner Preliminary Response (POPR)”); Section I.E. (“[A] Board panel will issue a decision on institution addressing the merits and other non-discretionary considerations.”). 5 Available at https://www.uspto.gov/patents/ptab/trial-practice-guide#step1 6 https://www.uspto.gov/patents/ptab/interim-director-discretionary-process.” slip op. at 38
- Novelty / Anticipation (§102) › Prior-art status of a reference › Printed publication / public accessibilityPrinted publication establishedDecided for petitioner
“Petitioner bears the burden of establishing that Wang is a printed publication. Medtronic, 891 F.3d at 1380. The determination of whether a document is a “printed publication” “involves a case-by-case inquiry into the facts and circumstances surrounding the reference's disclosure to members of the public.” In re Klopfenstein, 380 F.3d 1345, 1350 (Fed. Cir. 2004). “[A]t the institution stage, the petition must identify, with particularity, evidence sufficient to establish a reasonable likelihood that the reference was publicly accessible before the critical date of the challenged patent and therefore that there is a reasonable likelihood that it qualifies as a printed publication.” Hulu, IPR2018-01039, Paper 29 at 13.” slip op. at 19
- Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)Instituted
“A claim is unpatentable as anticipated under 35 U.S.C. § 102 “if each and every limitation is found either expressly or inherently in a single prior art reference.” WhitServe, LLC v. Computer Packages, Inc., 694 F.3d 10, 21 (Fed. Cir. 2012) (quoting Celeritas Techs., Ltd. v. Rockwell Int’l Corp., 150 F.3d 1354, 1361 (Fed. Cir. 1998)). An anticipatory reference must also “disclose those elements ‘arranged as in the claim.’” Net MoneyIN, Inc. v. VeriSign, Inc., 545 F.3d 1359, 1369 (Fed. Cir. 2008) (quoting Connell v. Sears, Roebuck & Co., 722 F.2d 1542, 1548 (Fed. Cir. 1983)).” slip op. at 11
Claim construction§ 102 anticipation§ 103 obviousnessDiscretionary denialcites KSR · GrahamPatents in suitUS 10,822,165 - CQV Co., Ltd. v. Merck Patent GmbHNo claims unpatentablePTAB · Oct 14, 2025 · PGR2021-00054 · APJ Kristina M Kalan · PGR · Remand
Claims 1–22 were not shown unpatentable because Sample C was not proven publicly available as prior art, and the original decision found the remaining grounds insufficient.
RulingsRemand decision- Novelty / Anticipation (§102) › Prior-art status of a reference › Printed publication / public accessibilityPrinted publication not establishedNot shown unpatentable
“We agree with Patent Owner that Petitioner’s evidence in Kuntz (Ex. 1026), the Annual Report (Ex. 1028), Masuko (Ex. 1029), and Pfaff (Ex. 1034) is insufficient to show that Xirallic® Sample C was available to the public before the effective filing date of the ’861 patent. Petitioner has not asserted, nor do we find, that any of these documents refer to or describe the lot of Xirallic® from which Sample C was taken. See Final Dec. 26. Kuntz, the Annual Report, Masuko, and Pfaff may support a finding that the Xirallic® line of products was available to the public, but these documents do not support a finding that the lot of Xirallic® from which Sample C was taken was available to the public. We also agree with Patent Owner that the Technical Data Sheets (Exs. 1005–1010), Certificates of Analysis (Exs. 1011–1017), and Material Safety Data Sheet (Ex. 1025) are insufficient to show that Xirallic® Sample C was available to the public. Petitioner has not asserted, nor do we find, that any of these documents refer to or describe the lot of Xirallic® from which Sample C was taken. See Final Dec. 26–27. Regardless of how the Technical Data Sheets were used in the Opposition against the European counterpart of the ’861 patent (Exs. 1040, 1041) and during the prosecution of the application from which the ’861 patent issued (Ex. 1003, 102–104), the Technical Data Sheets do not refer to or describe the lot of Xirallic® from which Sample C was taken. Moreover, as noted by Patent Owner, the Technical Data Sheets (Exs. 1005–1010) indicate that they are “preliminary” and Petitioner has not provided any evidence that the Technical Data Sheets were ever issued to the public, as opposed to just issued internally. See PO Resp. 18–19. We also find persuasive Patent Owner’s argument that the Technical Data Sheets are preliminary because other, later-dated technical data sheets (Exs. 2012, 2013) lack the “preliminary” label and list characteristics that are different from those in Exhibits 1005–1010. See PO Resp. 19 (comparing, e.g., Ex. 1009 and Ex. 2013; Ex. 1005 and Ex. 2012). The Technical Data Sheets may support a finding that the Xirallic® products they describe existed as of the dates on the documents, but they do not support a finding that the lot of Xirallic® from which Sample C was taken was available to the public.” slip op. at 20
- Expert testimonyPetitioner expert discountedPatent owner expert creditedOther
“witnesses. See Elbit Systems of Am., LLC v. Thales Visionix, Inc., 881 F.3d 1354, 1358 (Fed. Cir. 2018) (citing Trs. of Columbia Univ. v. Illumina, Inc., 620 F. App’x 916, 922 (Fed. Cir. 2015); Inwood Labs., Inc. v. Ives Labs., Inc., 456 U.S. 844, 856 (1982)). We have reviewed the witness testimony in the record and, more particularly, Mr. Choi’s deposition answers regarding Petitioner’s purchase of the lot of Xirallic® from which Sample C came. We find that Mr. Choi’s responses cast doubt on the credibility of his declaration testimony, namely with regard to the public availability of Sample C. Mr. Choi represented that he was involved in the purchase of the lot of Xirallic® from which Sample C was taken. Ex. 2011, 48:1–23. Mr. Choi stated that he instructed Petitioner’s marketing team manager to buy the sample from a distributor of Patent Owner’s products located in Europe. Id. at 48:24–49:4. Mr. Choi stated that he has evidence of the transaction, but refused to reveal the name of the company from which Petitioner purportedly purchased the lot of Xirallic® (id. at 49:5–50:3) and refused to produce an email in his possession that would corroborate his testimony regarding Petitioner’s acquisition of the product (id. at 50:8–16, 51:10–23). Mr. Choi represented that he does not remember how much Petitioner paid for Sample B. Id. at 56:4–5. Mr. Choi admitted that the entity from which Petitioner acquired the lot of Xirallic® from which Sample C was taken is “not currently a Merck distributor” (Ex. 2011, 50:4–7) and was not “a Merck distributor at the time” that “samples B and C were purchased” (id. at 51:25–52:2). According to Mr. Choi, the company is a “former distributor” of Patent Owner’s products. Id. at 52:3–6. Mr. Choi did not know, according to his testimony, when that unnamed entity first obtained the lot of Xirallic® (id. at 52:7–10) and he stated that he did not have personal knowledge of how the entity obtained the lot of Xirallic® (id. at 52:12–19). Instead, Mr. Choi assumed the entity was “able to obtain the sample through the routine course or process” the entity uses “to take samples or get samples.” Id. at 52:12–19. Mr. Choi believed the sample of Xirallic® from which Sample C was taken was sealed when Petitioner received it because samples from dealers are sealed, and he remembered observing that the package was from a dealer. Id. at 52:24– 54:25. However, Mr. Choi admitted that he did not obtain a technical data sheet or certificate of analysis for the lot of Xirallic® from which Samples B and C were taken. Id. at 59:6–11. Mr. Choi also answered questions regarding Petitioner’s purchase of Samples D and H. Ex. 2011, 62:20–66:8, 67:7–9, 73:12–13, 73:17–22. Similar to his testimony regarding Samples B and C, Mr. Choi admitted withholding an email regarding the purchase of the lot of Xirallic® from which Sample D was taken. Id. at 62:20–63:9. Mr. Choi also admitted that he did not know how Akzo USA or Axalta obtained the Xirallic® the companies sold to him, and admitted that Akzo USA was not a distributor of Patent Owner’s products at the time Petitioner purchased the product. Id. at 63:10–66:8, 73:17–22. Mr. Choi also admitted that Petitioner did not pay Akzo USA for the lot of Xirallic® from which Sample D was taken, and did not pay Axalta for the lot of Xirallic® from which Sample H was taken. Id. at 67:7–9, 73:12–13. Although Petitioner presents declaration testimony from Mr. Choi representing that he purchased the lot of Xirallic® from which Samples B and C were taken in October 2011 (Ex. 1004 ¶ 16), Mr. Choi’s declaration testimony lacks corroborating evidence, and his deposition testimony does not support that the product was available to the public, as we found in our Final Written Decision. See Final Dec. 27–28. Notably, Petitioner produced corroborating evidence for Mr. Choi’s acquisition of Samples A, H, and I. See Ex. 1004 ¶¶ 13 (citing Ex. 1047), 18 (citing Exs. 1024, 1025). However, Mr. Choi withheld similar evidence for the Xirallic® lots from which Samples B, C, and D were taken. See Ex. 2011, 50:8–16, 51:10–23, 62:20– 63:9; Final Dec. 28. As Patent Owner argues, there is “no information to determine when a contract was established, that there was consideration for the exchange, that the product was available to be delivered when the alleged transaction took place, or even when the product was delivered. Choi has no memory of what was paid for the product.” Sur-Reply 24–25; see also PO Resp. 13–14; PO Br. Rem. 2–4.” slip op. at 34
- Obviousness (§103) › Graham factors (scope of art, differences, level of skill)Not shown unpatentableNot shown unpatentable
“Based on the evidence discussed above, we are not persuaded that Petitioner has shown by a preponderance of the evidence that Sample C was available to the public. Regardless of whether a company avoids wasting shelf life of its products (Ex. 1004 ¶¶ 15–16), there is no persuasive evidence in the record showing that the lot of Xirallic® from which Sample C was taken was released from quality control and then made available to the public by Patent Owner. Mr. Choi’s testimony shows that Petitioner obtained the lot of Xirallic® from which Sample C was taken in an atypical manner (i.e., not from Patent Owner or one of Patent Owner’s current distributors) (Ex. 2011, 49:5–50:7, 50:8–16, 51:10–23, 51:25–52:6, 52:12– 19), and there is no evidence in the record to show that the lot of Xirallic® was intended for sale, rather than for experimental use only or for some other restricted use. Accordingly, we determine Petitioner has not demonstrated by a preponderance of the evidence that Sample C qualifies as prior art against the ’861 patent, and we determine that Petitioner has not shown by a preponderance of the evidence that the ’861 patent is unpatentable over the grounds relying on Sample C.” slip op. at 38
Patent outcomesUS 10,647,861 not shown unpatentable§ 102 anticipation§ 103 obviousnessPatents in suitUS 10,647,861 - AT&T Mobility LLC / AT&T Services Inc. et al. v. Daingean Technologies Ltd.No claims unpatentablePTAB · Jul 14, 2025 · IPR2024-00402 · APJ Mary C Hoffman · IPR · Final written decision
The Board granted Patent Owner’s revised non-contingent motion to amend, canceling claims 1–4 and substituting claims 7 and 8, which Petitioner did not prove unpatentable.
RulingsFinal written decision- PTAB / AIA Trials › Motions to amend / substitute claimsMotion to amend, grantedGranted
“whether the motion to amend meets the statutory and regulatory requirements set forth in 35 U.S.C. § 316(d) and 37 C.F.R. § 42.121.” See Lectrosonics, Inc. v. Zaxcom, Inc., IPR2018-01129, Paper 15 at 4 (PTAB Feb. 25, 2019) (precedential). A “patent owner bears the burden of persuasion to show, by a preponderance of the evidence, that the motion to amend complies” with the applicable statutory and regulatory requirements. 37 C.F.R. § 42.121(d)(1). Specifically, a patent owner must demonstrate the following: (1) the amendment proposes a reasonable number of substitute claims; (2) the amendment responds to a ground of unpatentability involved in the trial; (3) the amendment does not seek to enlarge the scope of the claims of the patent; and (4) the amendment does not introduce new matter. See 35 U.S.C. § 316(d); 37 C.F.R. § 42.121(a)–(b). For the reasons explained below, Patent Owner satisfies its burden of persuasion to show that the amendments comply with the applicable statutory and regulatory requirements.” slip op. at 8
- Skill levelSkill level patent owner adoptedDecided for patent owner
“Both parties rely on expert testimony for their respective positions relating to the number of years of experience needed to attain ordinary skill, but neither expert cites supporting evidence for their testimony. See Ex. 1002 ¶ 33; Ex. 2002 ¶ 15. Our decision is the same regardless of whether the length of experience is two years or three. We find Patent Owner’s proposed “wireless communications” is more consistent with the ’958 patent than Petitioner’s proposed “telecommunication,” which encompasses a variety of technologies including, e.g., landline and wireless telephones, cable, and satellite. See Ex. 1001, 1:11–62 (describing the invention in terms of wireless communications). Accordingly, we adopt a modified version of Petitioner’s proffered level of ordinary skill in the art, substituting “wireless communications” for “telecommunication.” Neither party, moreover, indicates the overall result would change based on a different definition.” slip op. at 18
- Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed patent owner constructionDecided for patent owner
“We agree with Patent Owner that the recited second type SIBs exclude first type SIBs. The plain meaning of “first type” and “second type” indicates that the first type and second type are different in kind. RMTA 22 (App. A). Our interpretation is consistent with the Specification, which explains that second type SIBs exclude first type SIBs. As Patent Owner points out, the ’958 patent discloses “first type of system information (1TYP SIB) is . . . essential . . . for initial system access” and “second type of system information (2TYP SIB) is nonessential system information . . . defined as all other types of information, and thus excludes the [] information required for initial access.” Id. at 11–12 (citing Ex. 1001, 8:34– 46); see also Ex. 1001, Abstract (interchangeably using the terms second type and non-essential). Despite Petitioner’s argument that this disclosure is non-limiting and directed to a disclaimed example embodiment (Opp. 8–9), Petitioner could not identify any embodiment, among the approximately forty disclosed embodiments, describing something other than the first type SIB being essential information and the second type SIB being non-essential information. Tr. 22:18–26. Even the Petition acknowledges that “the ’958 Patent further classifies a second type of system information, the ‘non-essential’ SI, which is defined as all other types of information excluding that first type of information required for initial access.” Pet. 5. Furthermore, the prior art of record suggests that a person of ordinary skill would have understood second type SIBs exclude first type SIBs. See Ex. 1008 ¶ 48 (describing two categories of system information, “essential SI” and “Other SI”). Patent Owner’s expert also understood the recited first and second type SIBs as being mutually exclusive. See Ex. 1011, 49:10–13. For the above reasons, we do not agree with Petitioner that the recited second type SIB lacks any requirements, nor do we interpret claims 7 and 8 such that the first type SIB could be a second type SIB.” slip op. at 19
- Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)Not shown unpatentableNot shown unpatentable
“(d) Limitation 7h: Analysis We agree with Patent Owner that Petitioner’s arguments with respect to limitation 7h are insufficient because they fail to address the limitation as written and improperly incorporate previous arguments by reference. For example, Petitioner did not map the recited “group identifier” when opposing Patent Owner’s Revised Motion to Amend. See Opp. 16–17. In its Sur-reply, Petitioner contends that limitation 7h’s requirement of transmitting the group identifier was previously “set out in Patent Owner’s prior papers,” but does not refer to any specific papers or exhibits. Pet. Surreply 11–12. We decline to search for and piece together Petitioner’s arguments and evidence to develop a persuasive theory of unpatentability. See 37 C.F.R. section 42.6(a)(3). Petitioner similarly failed to address adequately where Lee discloses or suggests the recited “compressed format” and “plural parameters.” See Opp. 16–17. Aside from the above concerns, we also do not see sufficient explanation with respect to limitation 7h’s requirement that the transmitting by broadcast be based on a comparison of the value tag. Petitioner argues that, because Patent Owner does not dispute limitation 7g, “it would have been obvious to a POSITA to use the same value tag[] to determine the system information broadcast in Lee’s compressed format embodiment.” Pet. Sur-reply 12. This conclusory statement is not supported by any citations to evidence and was improperly introduced in the Sur-reply. Moreover, whether it was obvious to determine what system information is broadcast is not commensurate with the claim scope because limitation 7h requires that the broadcasting (not the broadcast content) be based on a comparison of the value tag. See supra III.B.4 and IV.B. Further, we are not persuaded that Lee’s transmitting by broadcast is” slip op. at 26
Patent outcomesUS 10,841,958 not shown unpatentableClaim construction§ 102 anticipation§ 103 obviousness§ 112 disclosurecites Phillips · KSR · Graham · NautilusPatents in suitUS 10,841,958 - Inergy Technology, Inc. v. Force Mos Technology Co., Ltd.No claims unpatentablePTAB · May 16, 2025 · IPR2024-00093 · APJ Grace Karaffa Obermann · IPR · Final written decision
Claims 1–9 were not proven unpatentable because the asserted references did not establish the claimed epitaxial layer or the required coverage of the trench sidewalls.
RulingsFinal written decision- Skill levelSkill level petitioner adoptedDecided for petitioner
“Petitioner defines a person of ordinary skill in the art as having “a Master’s degree in electrical engineering, and at least two years of relevant work experience in the field of integrated circuit design and manufacturing.” Pet. 13 (citing Ex. 1003 ¶¶ 32–37, 57). Patent Owner does not dispute Petitioner’s definition. PO Resp. 6. We adopt Petitioner’s proposed definition of the level of ordinary skill in the art because it is supported by unopposed declaration testimony and appears to be consistent with the disclosures of the ’634 patent and the asserted prior art references. See Ex. 1001, 1:6–2:33 (describing the invention and related art in terms of integrated circuit design and fabrication); see also Ex. 1006 ¶¶ 1–6 (Hirler); Ex. 1008 ¶¶ 1–37 (Kobayashi); Ex. 1009 ¶¶ 2–29 (Shiraishi). Neither party, moreover, indicates the overall result would change based on a different definition.” slip op. at 7
- Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed petitioner constructionDecided for petitioner
“Petitioner argues that “the sidewalls of said trenches in said base layer are covered” should be construed to mean that “the entire sidewalls of” those trenches are covered. Pet. 18–19. We refer to this as “the sidewall limitation.” Petitioner shows persuasively that the disclosure and file history of the ’634 patent support its position on the sidewall limitation. Id. Patent Owner, for its part, observes that, after the filing of the Petition. two District Courts adopted the construction proposed by Petitioner.” PO Resp. 21 (citing Ex. 2010, 6–9; Ex. 2011, 23). Patent Owner also agrees to apply Petitioner’s construction for purposes of this proceeding. Id. We agree with Patent Owner that an express construction of the sidewall limitation is necessary to this Decision, id., and adopt Petitioner’s undisputed definition because it is supported by the record. No other claim term requires express construction for purposes of this Decision.” slip op. at 8
- BurdenNot shown unpatentable
“On this record, Petitioner fails to demonstrate that any claim is unpatentable under any ground asserted in the Petition. IV. CONCLUSION For the above reasons, we determine that Petitioner fails to establish by a preponderance of the evidence that claims 1–9 of the ’634 patent are unpatentable.” slip op. at 34
- Expert testimonyPetitioner expert discountedPatent owner expert creditedDecided for patent owner
“Alternatively, even if we set aside that timing issue, Dr. Liu’s bare opinion, advanced for the first time during cross-examination, that an epitaxial layer is “obvious” from Hirler’s disclosure is inadequate to support the challenges. Id. at 24–25. We accord little weight to Dr. Liu’s opinion because it is conclusory. See Xerox Corp. v. Bytemark, Inc., IPR2022-00624, Paper 9 at 15 (PTAB Aug. 24, 2022) (precedential). In any event, Petitioner does not meet, on this record, the “high standard” required to establish an inherent disclosure of an epitaxial layer in Hirler. PO Resp. 24.6 Dr. Liu opined for the first time during cross-examination “that it would have been impossible to create Hirler’s more lightly doped n- drift zone layer on top of its more heavily doped n+ substrate layer other than via epitaxy.” Id. at 25 (citing Ex. 2014, 164:16– 165:20). But Patent Owner effectively refutes that proposition with evidence that such a layer “could be created by counter-doping,” even if, as Dr. Liu contends, counter-doping may have been less ideal due to “disadvantageous mobility.” Id. (citing Ex. 2012 ¶ 133; Ex. 2014, 166:15–167:8).” slip op. at 11
Patent outcomesUS 7,629,634 not shown unpatentableClaim construction§ 102 anticipation§ 103 obviousnesscites Phillips · KSR · GrahamPatents in suitUS 7,629,634 - Samsung Electronics Co., Ltd. / Apple Inc. v. RJ Technology LLCSome claims unpatentablePTAB · 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 mixedClaim construction§ 102 anticipation§ 103 obviousnesscites KSR · GrahamPatents in suitUS 7,749,641 - Samsung Electronics Co., Ltd. / Apple Inc. v. RJ Technology LLCSome claims unpatentablePTAB · 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 mixedClaim construction§ 102 anticipation§ 103 obviousnesscites KSR · GrahamPatents in suitUS 7,749,641 - PTAB · Oct 11, 2024 · IPR2024-00730 · APJ John R Kenny · IPR · Institution
The Board denied institution because Petitioner did not show a reasonable likelihood that claims 4, 5, 10, and 11 were anticipated or obvious over Lee or Zheng.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied
“The Petition, to justify institution of review, must demonstrate a reasonable likelihood that Petitioner would prevail with respect to at least one challenged claim. See 35 U.S.C. § 314(a) (2018). After considering the Petition, the Preliminary Response, and the evidence of record, we determine that the Petition has not met this standard. Therefore, we decline to institute an inter partes review.” slip op. at 2
- Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed board ownDecided for patent owner
“capability to include one or both first CBs and second CBs within any one of the CBGs. Prelim. Resp. 9–10. The plain and ordinary meaning of the CB/CBG limitation, however, does not provide such a requirement. Instead, the plain and ordinary meaning of “each of the multiple CBs is included in any one of the multiple CBGs” simply requires that at least one CBG contain each CB. Although the description in the Specification of the configuration example of Figure 11(c) arguably describes the capacity of a system to include the first and second CBs in any one of CBGs, the Specification’s permissive language does not appear in the challenged claims. That description reads:” slip op. at 6
- Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)Not shown unpatentableNot shown unpatentable
“multiple CB/CBG limitation, we nevertheless find it necessary to construe the limitation. Upon review of the record, we construe the limitation as requiring that at least one CBG includes each of the multiple CBs. The plain meaning of “each of the multiple CBs is included in any one of the multiple CBGs” is that each CB is included in a CBG, which means that at least one CBG includes each of the multiple CBs. Further, the Specification supports construing the limitation to have this plain meaning. Figure 11 of the ’509 patent, shown below, provides a configuration example of CBGs (Ex. 1001, 23:7–8):” slip op. at 7
- Obviousness (§103) › Graham factors (scope of art, differences, level of skill)Not shown unpatentableNot shown unpatentable
“multiple CB/CBG limitation, we nevertheless find it necessary to construe the limitation. Upon review of the record, we construe the limitation as requiring that at least one CBG includes each of the multiple CBs. The plain meaning of “each of the multiple CBs is included in any one of the multiple CBGs” is that each CB is included in a CBG, which means that at least one CBG includes each of the multiple CBs. Further, the Specification supports construing the limitation to have this plain meaning. Figure 11 of the ’509 patent, shown below, provides a configuration example of CBGs (Ex. 1001, 23:7–8):” slip op. at 7
Claim construction§ 102 anticipation§ 103 obviousnessPatents in suitUS 11,196,509 - PTAB · Oct 11, 2024 · IPR2024-00771 · APJ Grace Karaffa Obermann · IPR · Institution
The Board instituted IPR on claims 1–6 of the ’195 patent on all asserted grounds and granted Texas Instruments’ motion to join the Cirrus IPR.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“Because the Preliminary Response in the instant case includes arguments pertaining to the sufficiency of the asserted prior art references, which were not raised in the preliminary response in the Cirrus IPR, we briefly address below the patentability of the challenged claims.” slip op. at 6
- PTAB / AIA Trials › §315(b) time barNot time barredDecided for petitioner
“II. TIMELINESS OF THE PETITION UNDER 35 U.S.C. § 315(B) Pursuant to 35 U.S.C. § 315(b), “[a]n inter partes review may not be instituted if the petition requesting the proceeding is filed more than 1 year after the date on which the petitioner, real party in interest, or privy of the petitioner is served with a complaint alleging infringement of the patent.” Patent Owner argues that the Petition is untimely under 35 U.S.C. § 315(b) because Petitioner is in privity with time-barred entities. Prelim. Resp. 10– 30. However, 35 U.S.C. § 315(b) also provides that the one-year time bar “shall not apply to a request for joinder under subsection (c).” See also 37 C.F.R. § 42.122(b). Because the Petition is accompanied by a timely request for joinder (Paper 2) to the instituted proceeding (IPR2024-00017), which we grant as further discussed below, Patent Owner’s argument that the Petition is time-barred under 35 U.S.C. § 315(b) is moot, irrespective of whether Petitioner is in privity with time-barred entities.” slip op. at 5
- PTAB / AIA Trials › Joinder §315(c) / SAS all-or-nothingJoinder, grantedGranted
“B. Whether to Join Petitioner as a Party to the Cirrus IPR Joinder may be authorized when warranted, but the decision to grant joinder is discretionary. See 35 U.S.C. § 315(c); 37 C.F.R. § 42.122. A motion for joinder should (1) set forth reasons why joinder is appropriate; (2) identify any new grounds of unpatentability asserted in the petition; (3) explain what impact (if any) joinder would have on the trial schedule for the existing review; and (4) address specifically how briefing and discovery may be simplified. See, e.g., Kyocera Corp. v. Softview LLC, IPR2013- 00004, Paper 15 (PTAB April 24, 2013). As the moving party, Petitioner bears the burden of proving that it is entitled to the requested relief. 37 C.F.R. § 42.20(c). As an initial matter, we find the Motion for Joinder meets the timing requirements of 37 C.F.R. § 42.122(b) because Petitioner filed it on April 4, 2024, no later than one month after the Cirrus IPR was instituted on May 1, 2024.” slip op. at 9
- Obviousness (§103) › Motivation to combine / reasonable expectation of successNot reached
“5. “Aid the Movement of Minority Carriers” Patent Owner argues that the Petition fails to show that the applied prior art references disclose the claim limitations “requiring ‘aid the movement of minority carriers,’” as twice recited in claim 1. Prelim. Resp. 8. Patent Owner summarizes this dispute as follows: The challenged patent discloses and claims a semiconductor device with (among other things) a “drift layer having a graded concentration of dopants . . . [and] further having a first static unidirectional electric drift field to aid the movement of minority carriers.”[] The Petition should not be instituted, because (among other deficiencies) it fails to show that the prior art discloses the “aid the movement of minority carriers” claim limitation. Rather than pointing to anything in the prior art that would teach this claim limitation, the Petition assumes that any “graded concentration of dopants” would necessarily “aid the movement of minority carriers.” The Petition contains no analysis explaining why the “graded concentration of dopants” in the prior art meet the “aid the movement of minority carriers” limitation, apart from the fact that they are “graded concentration of dopants.” In other words, Petitioner reads the “aid the movement of minority carriers” limitation out of the claims completely. Id. at 1–2. Patent Owner includes additional details in support of its view that the asserted prior art fails to establish obviousness of the “aid carrier movement” limitations of claim 1. Prelim. Resp. 1–10.” slip op. at 8
§ 102 anticipation§ 103 obviousnessPatents in suitUS 8,421,195 - PTAB · Oct 10, 2024 · IPR2024-00644 · APJ Christopher L Ogden · IPR · Institution
The Board denied institution because Petitioner did not show a reasonable likelihood that claims 5, 7, and 8 were unpatentable over R2-1702708, which was not shown to be a prior-art printed publication.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied
“§ 42.4(a), we may only institute an inter partes review when “the information presented in the petition . . . and any 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.” 35 U.S.C. § 314(a); see also 37 C.F.R. § 42.108(c) (2023). Applying that standard, we do not institute an inter partes review, for the reasons explained below.” slip op. at 2
- Novelty / Anticipation (§102) › Prior-art status of a reference › Printed publication / public accessibilityPrinted publication not establishedNot shown unpatentable
“ground that could be raised under section 102 or 103 and only on the basis of prior art consisting of patents or printed publications.” 35 U.S.C. § 311(b). If the petition relies on an alleged printed publication, “at the institution stage, the petition must identify, with particularity, evidence sufficient to establish a reasonable likelihood that the reference was publicly accessible before the critical date of the challenged patent and therefore that there is a reasonable likelihood that it qualifies as a printed publication.” Hulu, LLC v. Sound View Innovations, LLC, IPR2018-01039, Paper 29 at 13 (PTAB Dec. 20, 2019) (precedential).” slip op. at 9
§ 102 anticipationPatents in suitUS 11,134,400
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.