- Ipr2026-00253InstitutedPTAB · Jul 21, 2026 · IPR2026-00253 · APJ John A Squires · IPR · Institution
The Director granted institution of IPR2026-00253 after finding the petitioner showed a reasonable likelihood of prevailing on at least one challenged claim.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“the petitioner has shown a reasonable likelihood of prevailing with respect to at least one of the claims challenged in the petition and no other non-discretionary considerations warrant denial of institution. Accordingly, institution of inter partes review is granted in the following proceedings: IPR2026-00231 IPR2026-00234 IPR2026-00253 IPR2026-00232” slip op. at 2
NonePatents in suitUS 12,044,901 - Micron Technology, Inc. v. Yangtze Memory Technologies Company, Ltd.All claims unpatentablePTAB · Jul 20, 2026 · IPR2025-00228 · APJ Michael T Cygan · IPR · Final written decision
Claims 1–18 are unpatentable: claims 1, 2, 4, 5, and 9–18 as obvious over Kim; claims 1–18 over Kim and Fang; claims 1–15 over Han and Fang; and claims 17–18 over Han, Fang, and Chen.
RulingsFinal written decision- Skill levelSkill level petitioner adoptedDecided for petitioner
“B. Level of Ordinary Skill in the Art Petitioner asserts that a person of ordinary skill in the art (“POSITA”) at the critical time “would have had a bachelor of science degree in electrical engineering or a similar discipline, along with 2-3 years of professional experience working with (e.g., researching, designing, or teaching) monolithic 3D structures and NAND flash memory devices, or an equivalent level of skill, knowledge, and experience (e.g., an advanced degree may replace some of the professional experience).” Pet. 26 (citing Ex. 1003 ¶42). Petitioner further asserts that a POSITA “would have been aware of and generally knowledgeable about 3D NAND’s structure, how it is manufactured, and its component parts.” Id. Patent Owner does not dispute this assessment. PO Resp. 7–8. For purposes of this Decision, we adopt Petitioner’s proposed level of ordinary skill, as it appears to be consistent with the specification of the ’276 patent and the prior art of record.” slip op. at 6
- Expert testimonyPatent owner expert creditedDecided for patent owner
“Dr. Campbell has a Ph.D. in physics, supplying the advanced degree that Petitioner’s definition of a person having ordinary skill in the art accepts as a replacement for some experience. Ex. 2006 ¶ 2. Dr. Campbell has significant experience in semiconductor technology, including in process technologies for submicron CMOS, years of research in semiconductor processing, materials, and device structures, and authored “[t]he leading textbook on semiconductor technology.” Id. ¶¶ 2–4. Dr. Campbell qualifies as a person of ordinary skill in the art under the parties’ agreed definition.” slip op. at 7
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededOther
“Patent Owner proposed that the terms “exposing portions” and “etching the exposed portions” require two different steps performed in that order. PO Resp. 7–10. Petitioner does not contest this characterization. Pet. Reply 1– 2. Patent Owner also proposes that this requires the exposure step not to perform any etching of the newly exposed layer. PO Resp. 10–12 (citing Ex. 1001, 10:2–5, 10:15–17 (stating that the etch-stop layer “protects the underlying structure until all the VIA openings 640 are formed” and that it “[t]he essence of an etch-stop layer dictates that contact-hole etching stops or slows down upon contact, i.e., exposing without penetrating it.” Pet. Reply 11. Based on the record before us, we determine that no claim term requires express construction for purposes of this Decision.” slip op. at 7
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundReasonable expectation foundUnpatentable
“described in earlier embodiments would not be consistent with Kim’s statement that previously described elements are “omitted” in the Figures 17A to 22B section “for concise description.” As admitted by Patent Owner, it would be a “reasonable inference” that materials described in a first embodiment for a particular hypothetical layer L would also be used for that layer L in later embodiments absent an express statement to the contrary “because you have just omitted that sort of duplicative description.” Tr. 37:9–38:12. Kim’s Figures 17A–22B do not further address the underlying staircase structure that was detailed in the descriptions of the Figures 4–15 embodiments. Thus, it would similarly be a “reasonable inference” that aspects of the stack structure would be understood to apply to the same stack in the embodiments of Figures 17A–22B, which rely upon, in unaltered form, the earlier-described elements of the stack. stack on bottom, they “replace” and “exclude” any prior description of a gate-stack-on-top. PO Resp. 18–19 (citing Ex. 2019 ¶¶ 40–41; Ex. 1005 ¶¶ 185–187 (describing the etch-stop layer as covering the sacrificial layers only at their end portions)). However, as admitted by Patent Owner, all of Kim’s Figures show only a gate-stack-on-bottom structure. Tr. 41:6–7 (“For the first embodiment, it is true that figures show the gate stack on bottom.”). The fact that Kim’s Figures 17A–22B, which add etch-stop and barrier layers to the gate stack, are shown only as gate stack on bottom is merely consistent with the uniform use of gate-stack-on-bottom in Kim’s Figures, which show the layer-by-layer construction of its device. Like Figures 4–15, Figures 17A–22B exemplify rather than limit the description of the previously described memory stack, and do not exclude the gate-stack-onbottom description of the memory stack. Kim can be used for all it realistically teaches, including descriptions in its disclosure that are not represented by specific Figures. See In re Chapman, 357 F.2d 418, 424 (C.C.P.A. 1966) (stating that a reference “is not limited to the disclosures in its specific illustrative examples.”). Accordingly, the record supports Petitioner’s assertion that Kim’s teaching of a gate-stack-on-top alternative for the memory stack would be understood by a POSITA as a memory stack option applicable to its other embodiments having that same memory stack.” slip op. at 11
Patent outcomesUS 11,101,276 unpatentableClaim construction§ 103 obviousnesscites Phillips · KSR · GrahamPatents in suitUS 11,101,276 - Meta Platforms, Inc. v. Sitnet LLCAdverse judgmentPTAB · Jul 15, 2026 · IPR2026-00100 · APJ Thu A Dang · IPR · Adverse judgment
The Board granted adverse judgment against SitNet after its disclaimer left no challenged claims remaining in the instituted trial.
RulingsAdverse judgment- Adverse judgmentAdverse judgmentGranted
“judgment include: . . . [c]ancellation or disclaimer of a claim such that the party has no remaining claim in the trial.” 37 C.F.R. § 42.73(b)(2). “The application of the [adverse judgment] rule on its face does not turn on the patentee’s characterization of its own request.” Arthrex, Inc. v. Smith & Nephew, Inc., 880 F.3d 1345, 1349 (Fed. Cir. 2018). In this case, Patent Owner’s disclaimer of all claims of the ’290 patent leaves no claims remaining in the trial. Although Patent Owner argues that “it was filed to conserve the limited resources of the Board and the Parties in light of the fact that the ’290 Patent is no longer involved in any copending litigation” (Ex. 3001), we deem such argument not a persuasive reason as to why we should not apply § 42.73(b)(2), or why termination is more appropriate. Pursuant to 37 C.F.R. § 42.73(b)(2), we construe Patent Owner’s disclaimer of all claims at trial as a request for adverse judgment, which we grant.” slip op. at 3
NonePatents in suitUS 10,117,290 - Pgr2026-00025InstitutedPTAB · Jul 14, 2026 · PGR2026-00025 · APJ John A Squires · PGR · Institution
The Director granted institution of PGR2026-00025 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) and 324(a), after review of the merits, the petitioner has shown a reasonable likelihood of prevailing with respect to at least one of the claims challenged in the petition, or that it is more likely than not that at least one of the claims challenged in the petition is unpatentable, as appropriate, and no other non-discretionary considerations warrant denial of institution. Accordingly, institution of inter partes review and post-grant review is granted in the following proceedings:” slip op. at 2
NonePatents in suitUS 12,295,968 - Ipr2026-00276OtherPTAB · Jul 14, 2026 · IPR2026-00276 · APJ John A Squires · IPR · Order
The Director granted institution in IPR2026-00276 after finding the petition showed a reasonable likelihood of prevailing on at least one challenged claim.
RulingsOther- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“Pursuant to 35 U.S.C. §§ 314(a) and 324(a), after review of the merits, the petitioner has shown a reasonable likelihood of prevailing with respect to at least one of the claims challenged in the petition, or that it is more likely than not that at least one of the claims challenged in the petition is unpatentable, as appropriate, and no other non-discretionary considerations warrant denial of institution. Accordingly, institution of inter partes review and post-grant review is granted in the following proceedings:” slip op. at 2
- PTAB / AIA Trials › Joinder §315(c) / SAS all-or-nothingOther
“1 Absent extraordinary circumstances, the Board shall consolidate this proceeding with IPR2026-00145 and follow the already established schedule.” slip op. at 2
NonePatents in suitUS 12,401,721 - Ipr2026-00250InstitutedPTAB · Jul 14, 2026 · IPR2026-00250 · IPR · Institution
The Director granted institution of inter partes review in IPR2026-00250 after finding the threshold merits showing met and no non-discretionary consideration warranted denial.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“the petitioner has shown a reasonable likelihood of prevailing with respect to at least one of the claims challenged in the petition, or that it is more likely than not that at least one of the claims challenged in the petition is unpatentable, as appropriate, and no other non-discretionary considerations warrant denial of institution. Accordingly, institution of inter partes review and post-grant review is granted in the following proceedings: IPR2026-00137 IPR2026-00233 IPR2026-00250 IPR2026-002761 IPR2026-00138 IPR2026-00235 IPR2026-00222 IPR2026-00244 PGR2026-00025 IPR2026-00228” slip op. at 2
NonePatents in suitUS 10,549,648 - Ipr2026-00244InstitutedPTAB · Jul 14, 2026 · IPR2026-00244 · APJ John A Squires · IPR · Director review
Institution of IPR2026-00244 was granted after the Director found a reasonable likelihood of prevailing on at least one challenged claim and no other non-discretionary bar.
RulingsDirector review decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“Pursuant to 35 U.S.C. §§ 314(a) and 324(a), after review of the merits, the petitioner has shown a reasonable likelihood of prevailing with respect to at least one of the claims challenged in the petition, or that it is more likely than not that at least one of the claims challenged in the petition is unpatentable, as appropriate, and no other non-discretionary considerations warrant denial of institution. Accordingly, institution of inter partes review and post-grant review is granted in the following proceedings:” slip op. at 2
- Director reviewOther
“Before JOHN A. SQUIRES, Under Secretary of Commerce for Intellectual Property and Director of the United States Patent and Trademark Office. NOTICE Pursuant to 35 U.S.C. § 314(a), after review of discretionary and non-” slip op. at 1
NonePatents in suitUS 10,180,952 - Ipr2026-00235InstitutedPTAB · Jul 14, 2026 · IPR2026-00235 · APJ John A Squires · IPR · Institution
The Director granted institution of IPR2026-00235 after finding a reasonable likelihood of prevailing on at least one challenged claim and no warrant for denial.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“Pursuant to 35 U.S.C. §§ 314(a) and 324(a), after review of the merits, the petitioner has shown a reasonable likelihood of prevailing with respect to at least one of the claims challenged in the petition, or that it is more likely than not that at least one of the claims challenged in the petition is unpatentable, as appropriate, and no other non-discretionary considerations warrant denial of institution. Accordingly, institution of inter partes review and post-grant review is granted in the following proceedings: IPR2026-00137 IPR2026-00233 IPR2026-00250 IPR2026-00138 IPR2026-00235 IPR2026-002761 IPR2026-00222 IPR2026-00244 PGR2026-00025 IPR2026-00228 1 Absent extraordinary circumstances, the Board shall consolidate this proceeding with IPR2026-00145 and follow the already established schedule.” slip op. at 2
NonePatents in suitUS 11,106,744 - Ipr2026-00233InstitutedPTAB · Jul 14, 2026 · IPR2026-00233 · IPR · Institution
Institution of inter partes review is granted in IPR2026-00233 because the petitioner showed a reasonable likelihood of prevailing on at least one challenged claim.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“the petitioner has shown a reasonable likelihood of prevailing with respect to at least one of the claims challenged in the petition, or that it is more likely than not that at least one of the claims challenged in the petition is unpatentable, as appropriate, and no other non-discretionary considerations warrant denial of institution. Accordingly, institution of inter partes review and post-grant review is granted in the following proceedings:” slip op. at 2
NonePatents in suitUS 11,656,067 - Ipr2026-00228OtherPTAB · Jul 14, 2026 · IPR2026-00228 · APJ John A Squires · IPR · Order
The Director granted institution of IPR2026-00228 after finding the petitioner showed a reasonable likelihood of prevailing on at least one challenged claim.
RulingsOther- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“the petitioner has shown a reasonable likelihood of prevailing with respect to at least one of the claims challenged in the petition, or that it is more likely than not that at least one of the claims challenged in the petition is unpatentable, as appropriate, and no other non-discretionary considerations warrant denial of institution. Accordingly, institution of inter partes review and post-grant review is granted in the following proceedings:” slip op. at 2
NonePatents in suitUS 12,240,456
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.