- Micron Technology, Inc. v. Yangtze Memory Technologies Co., Ltd.Institution deniedPTAB · Aug 8, 2025 · IPR2025-00244 · APJ Kimberly Mcgraw · IPR · Institution
The Board denied institution because the petition did not sufficiently show that Costa disclosed or suggested claim 11.H’s required arrangement, and the dependent claims did not cure that deficiency.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied
“In view of these deficiencies, the Petition fails to identify the proposed grounds for review with particularity as required by 35 U.S.C. § 312(a)(3) with respect to the limitations of independent claim [11.H]. Petitioner presents no arguments or evidence with respect to the dependent claims challenged under this ground that would remedy the defects noted above with respect to independent claim 11. See generally Pet. Thus, Petitioner has failed to demonstrate a reasonable likelihood that the subject matter of claims 11, 12, or 14–19 would have been obvious over Costa.” slip op. at 23
- BurdenDenied
“3. Analysis A petition is required to identify “with particularity[ ] the grounds on which the challenge to each claim is based, and the evidence that supports the grounds for the challenge.” 35 U.S.C. § 312(a)(3). The “petition . . . must include . . . [a] full statement of the reasons for the relief requested, including a detailed explanation of the significance of the evidence”). 37 C.F.R. § 42.22(a)(2). Our rules require that a petition include fully developed arguments. See 37 C.F.R. § 42.22(a)(2) (the “petition . . . must include . . . [a] full statement of the reasons for the relief requested, including a detailed explanation of the significance of the evidence”). The petition must include both an adequate explanation of how the claims should be construed as well as how the construed claims are unpatentable over the asserted prior art. 37 C.F.R. § 42.104(b)(3), (b)(4). Additionally, the “petition must specify where each element of the claim is found in the prior art.” 37 C.F.R. § 42.104(b)(4). A petition should also “explain why a person of ordinary skill in the art would have combined elements from specific references in the way the claimed invention does.” ActiveVideo Networks, Inc. v. Verizon Comm'ns, Inc., 694 F.3d 1312, 1328 (Fed. Cir. 2012). Thus, based on our rules, we only consider fully developed arguments set forth in the petition.” slip op. at 16
- Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITANot reached
“arguments. See, e.g., id. at 34–35 (arguing that “on” does not require overlap in the Z direction but “includes both objects that are merely touching (in any dimension) and objects that are in proximity to each other but not touching” (citing Ex. 1078, 1; Ex. 1001, 8:3–12)); see also id. at 36–38 (arguing that if “on” is construed to mean “directly on or on with an intermediate feature or layer therebetween,” then Costa’s second stacked layer 232, 242 and third channel structure (173) are “directly on” each other, because their edges are directly touching each other). The Petition, however, does not clearly present any of the claim construction arguments set forth in the Opposition Brief. See Paper 22 (not clearly identifying where the Petition provides the proposed claim construction); see generally Pet.; see also Pet. 33, 43, 56 (arguing “on” does not require “directly on” and permits intermediate layers but not presenting any of the other claim construction arguments set forth in the Opposition Brief). Nor did the Petition provide any particularized argument as to how Costa discloses or suggests a second stacked layer disposed on the third channel structure applying any of the claim constructions proposed in the Opposition Brief. See generally Pet. (presenting no argument that Costa’s second stacked layer 232, 242 is “on” semiconduction portion layer 173 (the asserted third channel structure) because they touch each other as shown above in Petitioner’s annotation of Costa Figure 21A). We will not consider any arguments not sufficiently set forth in the Petition. See 37 C.F.R. § 42.104(b)(3) (“the petition must set forth . . . [h]ow the challenged claim is to be construed”); 37 C.F.R. § 42.104(b)(4) (“the petition must set forth . . . [h]ow the construed claim is unpatentable”).” slip op. at 19
- Parallel petitionsNot reached
“Because we determine that Petitioner did not show a reasonable likelihood that it would prevail on the merits, we do not address Patent Owner’s parallel petitions argument.” slip op. at 23
Claim constructionDiscretionary denialcites Phillips · KSR · GrahamPatents in suitUS 10,886,291 - Micron Technology, Inc. v. Yangtze Memory Technologies Co., Ltd.Institution deniedPTAB · Aug 8, 2025 · IPR2025-00245 · APJ Michael T Cygan · IPR · Institution
Institution was denied because Petitioner did not show a reasonable likelihood that claims 11, 13, and 15–17 would have been obvious over Costa or Costa and Oh.
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). Based upon our review of the present record, Petitioner has not sufficiently shown a reasonable likelihood it will prevail with respect to at least one of the challenged claims. Accordingly, we do not institute inter partes review.” slip op. at 2
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededOther
“Petitioner states that none of the claims require express construction and the claims should receive their plain and ordinary meaning. Pet. 23. Patent Owner argues that no claim construction is necessary for the institution determination, and that the Petition “still fails if the claim term ‘on’ receives its plain and ordinary meaning -- e.g., physically in contact with or directly on top of with intervening objects therebetween.” Prelim. Resp. 20 (citing Ex. 2006 ¶ 66). Although Patent Owner argues that Petitioner has construed “on” as including indirectly on; i.e., where there is no physical contact, the Petition addressed now-disclaimed claim 18, and the Petition does not advance any construction for the remaining claims. See id. at 16–17 (citing Pet. 92; Ex. 1003 ¶ 258). Consequently, we determine that no construction is required to resolve the issues for institution.” slip op. at 7
- Skill levelSkill level petitioner adoptedOther
“we consider the level of ordinary skill at the time of filing. 35 U.S.C. § 103; see also Graham v. John Deere Co., 383 U.S. 1, 17 (1966) (discussing pre- AIA obviousness). Petitioner contends that a person of ordinary skill in the art (“POSITA”) would have had “a bachelor’s 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 memory devices, or an equivalent level of skill, knowledge, and experience (e.g., an advanced degree may replace 1 The Leahy-Smith America Invents Act, Pub. L. No. 112-29, 125 Stat. 284 (2011) (“AIA”), amended 35 U.S.C. § 103. The earliest claimed priority date for the ’241 patent is after the effective date of the applicable AIA amendment. See Ex. 1001, (63). Thus, we refer to the AIA version of 35 U.S.C. § 103. 2 Costa, US 2018/001282771 (filed Feb. 28, 2017, published June 28, 2018) (Ex. 1005, “Costa”). 3 Oh, US 2017/0154892 A1 (filed June 10, 2016, published June 1, 2017) (Ex. 1006, “Oh”). some of the professional experience). Pet. 23–24. Petitioner also 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. (citing Ex. 1003 ¶¶ 36–40). Patent Owner does not take a position on the level of ordinary skill in the art. Prelim. Resp. 11; see also Ex. 2006 ¶ 34 (applying Petitioner’s definition of a POSITA to the opinions set forth in the declaration but reserving the right to opine to an alternative level of a POSITA). At this stage of the proceeding, we adopt Petitioner’s definition of a POSITA as it appears consistent with the level of ordinary skill in the art that is reflected by the prior art of record.” slip op. at 6
- Obviousness (§103) › Graham factors (scope of art, differences, level of skill)Not shown unpatentableNot shown unpatentable
“We agree with Patent Owner that the Petition fails to sufficiently show that Costa teaches a “second stacked layer disposed on the third channel structure” as required by apparatus claim element [11.E]. The Petition asserts that Costa’s second alternating stack 232, 242 is formed “on the top surface of joint-level material layers.” Pet. 64. However, Costa refers to the term “joint-level material layers” as representing layers 175–177, not the asserted third channel structure 173. Ex. 1005 ¶¶ 166, 178, 184–85; see Ex. 2006 ¶ 77. Thus, under Petitioner’s characterization, which is consistent with Costa, Costa’s second alternating stack is not formed on the third channel structure, but instead, “on the top surface of the joint level material layers” that surround the third channel structure. Because Petitioner has not explained how a second alternating stack on the surface of the joint material layers teaches a second alternating stack disposed on the third channel structure, Petitioner has not met its obviousness burden for limitation [11.E].” slip op. at 11
Claim construction§ 103 obviousnesscites Phillips · KSR · GrahamPatents in suitUS 11,482,532 - Micron Technology, Inc. v. Yangtze Memory Technologies Company, Ltd.Institution deniedPTAB · May 8, 2025 · IPR2025-00035 · APJ Michael T Cygan · IPR · Institution
The Board denied institution because Micron did not show a reasonable likelihood that claims 1–5, 8–13, or 15 were obvious over either asserted reference combination.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied
“review. See 35 U.S.C. § 314 (2018); 37 C.F.R. § 42.4(a) (2023). The standard for instituting an inter partes review is set forth in 35 U.S.C. § 314(a), which provides that 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.” For the reasons given below, on this record, Petitioner has not established a reasonable likelihood that it would prevail in showing the unpatentability of at least one of challenged claims 1–5, 8–13, and 15 of the ’604 patent. Accordingly, we do not institute an inter partes review of the ’604 patent.” slip op. at 2
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation not foundNot shown unpatentable
“We agree that Petitioner has not shown that a person having ordinary skill in the art at the critical time would have been motivated to replace the wordlines in the staircase region with dielectric material if the result is that one of the memory cell arrays becomes unavailable. Petitioner relies upon two usable arrays for its combination, emphasizing Thimmegowda as desirably enabling “a single conductive contact (e.g., 334a) to bidirectionally drive memory cells in the memory arrays on either side of the bridge”; i.e., both the left and right memory cell blocks. Pet. 26 (citing Ex. 1003 ¶¶ 81– 83; Ex. 1005, 9:49–51; 7:61–64), 41 (stating that in the combination, “there Similarly, Thimmegowda emphasizes that the purpose of its bridge is to connect first and second blocks, which desirably replaces prior connection methods that consumed silicon real estate and interfered with the goal of shrinking the sizes or increasing the densities of memory arrays. Ex. 1005, 1:11–25, 3:20–28; Ex. 1003 ¶¶ 79–80 (“allowing a single staircase to access both memory arrays”), 83 (“a stairstep electrically couples to a respective gate layer (wordline) in both of the blocks on the right and left”). Dr. Banerjee also underscores the importance of using both arrays, stating that the combination relies on “Thimmegowda’s bridge and array architecture (to drive two memory arrays with one wordline via)” as part of the reasonable expectation of success in such a combination Ex. 1003 ¶¶ 102, 113. Petitioner and Dr. Banerjee rely upon the motivation of reducing punch-through, because punch-through causes “yield loss”; i.e., loss of the usability of the wordlines connected by the punch-through. Ex. 1003 ¶ 103; Pet. 35. However, such advantage is premised on retaining both arrays, and neither Petitioner nor Dr. Banerjee explains how the advantages of reducing punch-through should be weighed against a disadvantage of losing access to one of the two arrays. Nor do Petitioner and Dr. Banerjee discuss how the advantages of metal gate replacement should be weighed against losing access to one of the two arrays.4 Patent Owner’s declarant, Dr. Giapis, attests to the undesirability of such a combination, in which one array 4 Additionally, the claims of the ’604 patent do not require a metal conductor portion; Petitioner does not explain why gate replacement to a metal conductor from a polysilicon conductor, described as used in Lee’s “memory device at large,” (Pet. 40) is a benefit associated with Lee’s finger teaching relevant to the claims. Ex. 2007 ¶¶ 50–54. We agree with Patent Owner that the advantage of preventing individual wordlines from becoming unusable because of punchthrough would be outweighed by the loss of half of the wordlines if one of the memory arrays were to become unavailable because its connections were removed.” slip op. at 15
- PTAB / AIA Trials › Discretionary denial › Fintiv (parallel litigation)Not reached
“III. DISCRETION UNDER 35 U.S.C. § 314(a) Patent Owner argues that the Board should exercise its discretion to deny institution under 35 U.S.C. § 314(a) based on the factors set forth in Apple Inc. v. Fintiv, Inc., IPR2020-00019, Paper 11 at 6 (Mar. 20, 2020) additional briefing. Papers 12, 14. Because we determine that Petitioner has not shown a reasonable likelihood of success on the merits of its obviousness contentions, we need not resolve whether Fintiv would require discretionary denial of the Petition.6” slip op. at 23
- Skill levelSkill level petitioner adoptedOther
“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) 2 We apply AIA 35 U.S.C. § 103 to the ’604 patent because it was filed after, and never claimed the benefit of an effective filing date before, March 16, 2013. Ex. 1001, codes (22), (63); Pet. 6. 3 Neither party presents evidence or arguments regarding objective evidence of non-obviousness. Pet. 89; Prelim. Resp. level of skill, knowledge, and experience (e.g., an advanced degree may replace some of the professional experience).” Pet. 34 (citing Ex. 1003 ¶¶ 40–43). Petitioner further asserts that a POSITA “would have been aware of and generally knowledgeable about 3D NAND’s structure, its component parts, how it operates, and how it is controlled.” Id. Patent Owner does not provide any such assessment in its Preliminary Response. Prelim. Resp. 10. 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 ’604 patent and the prior art of record.” slip op. at 6
Claim construction§ 103 obviousnessDiscretionary denialcites Phillips · KSR · GrahamPatents in suitUS 11,450,604 - Solus Advanced Materials Co., Ltd. v. SK Nexilis Co., Ltd.Institution deniedPTAB · Apr 25, 2025 · IPR2024-01462 · APJ Jo-Anne M Kokoski · IPR · Institution
The Board denied institution because Petitioner did not show a reasonable likelihood that claims 1–8 were unpatentable under the asserted obviousness grounds.
RulingsInstitution decision- Skill levelSkill level petitioner adoptedDecided for petitioner
“experience working on the development of materials or components for electronic devices such as batteries.” Pet. 2. Petitioner further contends that “[a]dditional education, such as a graduate degree, could compensate for less work experience, and additional work experience could compensate for less formal education.” Id. Patent Owner states that, “[f]or purposes of this Preliminary Response, Patent Owner applies Petitioner’s level of skill for a person of ordinary skill in the art.” Prelim. Resp. 4. For purposes of this Decision, we adopt Petitioner’s undisputed proposed definition because it appears to be consistent with the cited prior art and the disclosure of the ’014 patent. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001) (explaining that specific findings regarding ordinary skill level are not required “where the prior art itself reflects an appropriate level and a need for testimony is not shown” (quoting Litton Indus. Prods., Inc. v. Solid State Sys. Corp., 755 F.2d 158, 163 (Fed. Cir. 1985))).” slip op. at 8
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededOther
“customary meaning of such claim as understood by one of ordinary skill in the art and the prosecution history pertaining to the patent.” 37 C.F.R. § 42.100(b). Under this standard, claim terms are generally given their plain and ordinary meaning as would have been understood by a person of ordinary skill in the art at the time of the invention and in the context of the entire patent disclosure. Phillips v. AWH Corp., 415 F.3d 1303, 1313 (Fed. Cir. 2005) (en banc). Only those terms in controversy need to be construed, and only to the extent necessary to resolve the controversy. Realtime Data LLC v. Iancu, 912 F.3d 1368, 1375 (Fed. Cir. 2019). in this proceeding.” Pet. 3. Patent Owner contends that “[t]he Board need not construe any term in order to determine that institution should be denied.” Prelim. Resp. 4. Based on the record before us, we determine that no claim term requires express construction for purposes of this Decision. See Realtime Data, 912 F.3d at 1375.” slip op. at 8
- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied
“For these reasons, we are not persuaded that Petitioner sufficiently establishes that a POSITA would have been motivated to modify Hanafusa in light of Dobashi with a reasonable expectation of success as Petitioner contends. Accordingly, we determine that Petitioner fails to demonstrate a reasonable likelihood of prevailing in its assertion that the subject matter of claim 1, and claims 4 and 8 that depend therefrom, would have been obvious over the combined teachings of Hanafusa and Dobashi.” slip op. at 18
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation not foundNot shown unpatentableNot shown unpatentable
“Petitioner also focuses on Hanafusa’s teaching that all known methods can be used to make a rough surface low-profile, and Dobashi’s teaching that RSm can be used as an indicator for judgment of the surface, to support its contention that a POSITA would have been motivated to apply Dobashi’s RSm to further achieve Hanafusa’s purpose, without explaining how and why that would be the case. In particular, neither Petitioner nor Dr. Josefowicz adequately explain why a POSITA looking for ways to make Hanafusa’s surface roughness low-profile would look to methods to achieve as the period of waviness, RSm can also be used as an indicator for judgment of the surface.” Ex. 1005, 2:66–3:1, 6:23–26. Dobashi explains that waviness is “an indicator for determining whether the fine pattern forming performance is good or bad,” and “[t]he surface has small waviness and is smooth when RSm is large, and the surface has large waviness and is rough when RSm is small.” Id. at 3:1–3, 6:27–29. Dobashi also teaches that surface roughness Rzjis is used as a low-profile indicator. Ex. 1005, 2:66– 3:1. Dobashi, therefore, teaches that RSm is an indicator of surface waviness, which Dobashi explains is different than surface roughness. Id. at 2:66–3:3, 6:23–29. Given these teachings in Dobashi, neither Petitioner nor Dr. Josefowicz sufficiently explains how or why a POSITA would have been motivated to implement Dobashi’s RSm values to make Hanafusa’s surface roughness low-profile. See Pet. 10–12; Ex. 1003 ¶¶ 46–52.” slip op. at 14
Claim construction§ 103 obviousnesscites Phillips · KSRPatents in suitUS 11,346,014 - Uipath, Inc. v. Rule 14 LLCInstitution deniedPTAB · Mar 14, 2025 · IPR2024-01306 · APJ Andreas Baltatzis · IPR · Institution
The Board denied institution because Petitioner did not show a reasonable likelihood of prevailing on any challenged claim, failing to support its proposed obviousness combinations with a reason to combine.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied
“In an [inter partes review], the petitioner has the burden from the onset to show with particularity why the patent it challenges is unpatentable.” Harmonic Inc. v. Avid Tech., Inc., 815 F.3d 1356, 1363 (Fed. Cir. 2016) (citing 35 U.S.C. § 312(a)(3) (requiring inter partes review petitions to identify “with particularity . . . the evidence that supports the grounds for the challenge to each claim”)). This burden never shifts to Patent Owner. See Dynamic Drinkware, LLC v. Nat’l Graphics, Inc., 800 F.3d 1375, 1378 (Fed. Cir. 2015) (citing Tech. Licensing Corp. v. Videotek, Inc., 545 F.3d 1316, 1326–27 (Fed. Cir. 2008)) (discussing the burden of proof in inter partes review). Furthermore, Petitioner must explain with particularity how the prior art would have rendered the challenged claims unpatentable. 35 U.S.C. § 312(a)(3); 37 C.F.R. § 42.104(b)(4) (“The petition must specify where each element of the claim is found in the prior art patents or printed publications relied upon.”). slip op. at 6
- Expert testimonyPetitioner expert discountedDecided for patent owner
“Further, as Patent Owner notes, Petitioner’s declarant testimony is identical to the Petition and does not cite to any evidence either in the asserted references or other documents to support a reason to combine the references. See, e.g., Ex. 1004 ¶¶ 80, 93. In brief, “[t]he declaration does not Srivastava] determines that the feature in question was required or would have been obvious based on the prior art disclosure.” Xerox, IPR2022- 00624, Paper 12 at 5. Accordingly, we give little weight to Petitioner’s declarant testimony because the declaration merely offers conclusory assertions without underlying factual support and repeats, verbatim, Petitioner’s conclusory arguments. Id.” slip op. at 21
- Skill levelSkill level petitioner adoptedDecided for petitioner
“Petitioner argues that one of ordinary skill in the art relevant to the challenged claims, as of the earliest claimed priority date, “would have had a bachelor’s degree in electrical engineering, computer science, or equivalent training, and approximately two years of work experience in software development with a basic knowledge of database searching techniques.” Pet. 14 (citing Ex. 1004 ¶ 28). Patent Owner’s declarant adopts Petitioner’s definition of the level of ordinary skill in the art. See Ex. 2001 ¶ 6. For the purposes of this Decision, we adopt Petitioner’s formulation for a person of ordinary skill in the art, which appears to be consistent with the level of skill in the art reflected in the prior art of record and the disclosure of the ’712 patent. See Litton Indus. Prods., Inc. v. Solid State Sys. Corp., 755 F.2d 158, 163 (Fed. Cir. 1985) (explaining that specific findings regarding ordinary skill level are not required “where the prior art itself reflects an appropriate level and need for testimony is not shown”).” slip op. at 7
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededOther
“Petitioner notifies the Board of two terms being disputed in the co-pending litigation: (1) “expanding search terms of the query,” and (2) “accuracy threshold.” Pet. 12–15. For each term, Petitioner contends the “Board need not resolve” or address the dispute. See id. Patent Owner does not address claim construction. See generally Prelim. Resp. We agree with Petitioner that we need not resolve the claim construction disputes from the co-pending litigation. Accordingly, we need not construe explicitly any claim terms because no such construction is necessary to determine whether to institute. See Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 868 F.3d 1013, 1017 (Fed. Cir. 2017) (stating that “we need only construe terms ‘that are in controversy, and only to the extent necessary to resolve the controversy’” (quoting Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999))).” slip op. at 8
Claim construction§ 103 obviousnesscites Phillips · GrahamPatents in suitUS 11,048,712 - Uipath, Inc. v. Rule 14 LLCInstitution deniedPTAB · Mar 14, 2025 · IPR2024-01304 · APJ Andreas Baltatzis · IPR · Institution
The Board denied institution because Petitioner did not show a reasonable likelihood of prevailing on any challenged claim, chiefly because it failed to establish motivation to combine the asserted references.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied
“In an [inter partes review], the petitioner has the burden from the onset to show with particularity why the patent it challenges is unpatentable.” Harmonic Inc. v. Avid Tech., Inc., 815 F.3d 1356, 1363 (Fed. Cir. 2016) (citing 35 U.S.C. § 312(a)(3) (requiring inter partes review petitions to identify “with particularity . . . the evidence that supports the grounds for the challenge to each claim”)). This burden never shifts to Patent Owner. See Dynamic Drinkware, LLC v. Nat’l Graphics, Inc., 800 F.3d 1375, 1378 (Fed. Cir. 2015) (citing Tech. Licensing Corp. v. Videotek, Inc., 545 F.3d 1316, 1326–27 (Fed. Cir. 2008)) (discussing the burden of proof in inter partes review). Furthermore, Petitioner must explain with particularity how the prior art would have rendered the challenged claims unpatentable. 35 U.S.C. § 312(a)(3); 37 C.F.R. § 42.104(b)(4) (“The petition must specify where each element of the claim is found in the prior art patents or printed publications relied upon.”). slip op. at 6
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation not foundNot shown unpatentable
“Our reviewing court has emphasized that the “motivation-to-combine analysis is a flexible one.” Intel Corp. v. PACT XPP Schweiz AG, 61 F.4th 1373, 1379 (Fed. Cir. 2023). And it is well-established that “any need or problem known in the field of endeavor at the time of invention and addressed by the patent can provide a reason for combining the elements in the manner claimed.” KSR, 550 U.S. at 420. Despite this flexible standard, our reviewing court cautions that “‘a conclusory assertion with no explanation is inadequate to support a finding that there would have been a motivation to combine’ because ‘[t]his type of finding, without more, tracks the ex post reasoning KSR warned of and fails to identify any actual reason why a skilled artisan would have combined the elements in the manner Cir. 2019) (quoting In re Van Os, 844 F.3d 1359, 1361–62 (Fed. Cir. 2017)); see also TriVascular, Inc. v. Samuels, 812 F.3d 1056, 1066 (Fed. Cir. 2016) (“Although the KSR test is flexible, the Board ‘must still be careful not to allow hindsight reconstruction of references . . . without any explanation as to how or why the references would be combined to produce the claimed invention.’”).” slip op. at 18
- Expert testimonyPetitioner expert discountedDecided for patent owner
“identical to the Petition and does not cite to any evidence either in the asserted references or other documents to support a reason to combine the references. See, e.g., Ex. 1003 ¶¶ 70, 71. In brief, “[t]he declaration does not provide any technical detail, explanation, or statements supporting why [Dr. Srivastava] determines that the feature in question was required or would have been obvious based on the prior art disclosure.” Xerox, Paper 12, 5. Accordingly, we give little weight to Petitioner’s declarant testimony because the declaration merely offers conclusory assertions without underlying factual support and repeats, verbatim, Petitioner’s conclusory arguments. Id.” slip op. at 20
- Skill levelSkill level petitioner adoptedOther
“Petitioner argues that one of ordinary skill in the art relevant to the challenged claims, as of the earliest claimed priority date, “would have had a bachelor’s degree in electrical engineering, computer science, or equivalent training, and approximately two years of work experience in software development with a basic knowledge of database searching techniques.” Pet. 15 (citing Ex. 1003 ¶ 26). Patent Owner does not address the definition of a person of ordinary skill in the art. See generally Prelim. Resp. For the purposes of this Decision, we adopt Petitioner’s formulation for a person of ordinary skill in the art, which appears to be consistent with the level of skill in the art reflected in the prior art of record and the disclosure of the ’977 patent. See Litton Indus. Prods., Inc. v. Solid State Sys. Corp., 755 F.2d 158, 163 (Fed. Cir. 1985) (explaining that specific findings regarding ordinary skill level are not required “where the prior art itself reflects an appropriate level and need for testimony is not shown”).” slip op. at 7
Claim construction§ 103 obviousnesscites Phillips · KSR · GrahamPatents in suitUS 9,229,977 - Ecto World, LLC / Sv3, LLC v. Rai Strategic Holdings, Inc.Institution deniedPTAB · Mar 10, 2025 · PGR2024-00049 · APJ Jo-Anne M Kokoski · PGR · Institution
The Board denied institution because Petitioner did not show the patent was eligible for PGR; the challenged claims were supported by the 2006 priority application.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied
“Accordingly, we determine that Petitioner does not demonstrate that it is more likely than not that the challenged claims lack written support in the Specification (and the ’634 application). That is, on this record, it appears that the challenged claims properly claim priority to the ’634 application and, accordingly, have an effective filing date in October 2006. 2. Conclusion: PGR Eligibility For the foregoing reasons, and based on the record before us, we determine that Petitioner has not demonstrated that it is more likely than not that the ’202 patent has, or had, at least one claim having an effective filing date on or after March 16, 2013. Accordingly, we determine that the ’202 patent is entitled to the filing date of the ’634 application (October 18, 2006), and, thus, the ’202 patent is not eligible for post-grant review.” slip op. at 18
- Claim Construction › Intrinsic evidence (Phillips canons) › Specification disavowal / 'present invention' languageTerm construed board ownDecided for patent owner
“Accordingly, the ’202 patent consistently and repeatedly characterizes the invention as incorporating tobacco in some form and ties the stated benefits of the invention to the inclusion of tobacco. Moreover, the Specification is directed to smoking articles containing tobacco, all of the embodiments include tobacco, and “the present invention” is described as a smoking article, where the smoking article includes tobacco. Consequently, we determine that “smoking article” as it is used in the challenged claims is limited to devices that include tobacco. See Mosaic Brands, Inc. v. Ridge Wallet LLC, 55 F.4th 1354, 1361 (Fed. Cir. 2022) (finding claimed “lip” is limited to “extrudable plastic materials” where specification states that “the device of the present invention is constructed of extrudable plastic materials” and “emphasizes the benefits of using extrudable plastics and describes them as benefits of the invention as a whole”); Poly-Am., L.P. v. described in the specification has inwardly extended short seals and every section of the specification indicates the importance of inwardly extended short seals. These two facts provide together a proper reason to limit the claims in this way.”); Phillips v. AWH Corp., 415 F.3d 1303, 1312–1317 (Fed. Cir. 2005) (en banc) (“[T]he specification may reveal an intentional disclaimer, or disavowal, of claim scope by the inventor. In that instance as well, the inventor has dictated the correct claim scope, and the inventor’s intention, as expressed in the specification, is regarded as dispositive.”).” slip op. at 13
- Disclosure Requirements (§112) › Written description (Ariad)Written description adequateEntitled to earlier dateNot shown unpatentable
“Petitioner’s argument is dependent on accepting Petitioner’s assertion that the claims include a smoking article that does not contain tobacco, which we have not done. Instead, as set forth above, we construe “smoking article” as being limited to devices that include tobacco. See § II.B.2, supra. Based on our construction of “smoking article” and the evidence of record in this proceeding, we determine that the challenged claims are supported by the specification of the ’202 patent, which is identical to the specification of all of the continuations in the chain leading back to the October 18, 2006 that the specification of the ’202 patent and every patent in its priority chain “have identical specifications”); Prelim. Resp. 13 (noting that Petitioner does not identify other limitations in the challenged claims “allegedly lacking support in the ’202 patent family’s applications dating back to U.S. App. No. 11/550,634, filed on October 18, 2006”). Accordingly, we determine that Petitioner does not demonstrate that it is more likely than not that the challenged claims lack written support in the Specification (and the ’634 application). That is, on this record, it appears that the challenged claims properly claim priority to the ’634 application and, accordingly, have an effective filing date in October 2006.” slip op. at 17
Claim construction§ 112 disclosurecites PhillipsPatents in suitUS 11,925,202 - Innoscience America, Inc. v. Infineon Technologies Austria AGInstitution deniedPTAB · Dec 11, 2024 · IPR2024-00975 · APJ Christopher M Kaiser · IPR · Institution
The Board denied institution because the petition did not show a reasonable likelihood that any challenged claim was obvious over the asserted grounds.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied
“determine whether to institute an inter partes review under 35 U.S.C. § 314 and 37 C.F.R. § 42.4(a). Inter partes review may not be instituted unless “the information presented in the petition filed under [35 U.S.C.] section 311 and any response filed under [35 U.S.C.] section 313 shows that there is a reasonable likelihood that the petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” 35 U.S.C. § 314(a) (2018). “When instituting inter partes review, the Board will authorize the review to proceed on all of the challenged claims and on all grounds of unpatentability asserted for each claim.” 37 C.F.R. § 42.108(a) (2023).” slip op. at 2
- Skill levelSkill level petitioner adoptedDecided for petitioner
“possessed at least a four-year degree in electrical engineering or a closely related field, and at least two years of experience in semiconductor device design.” Pet. 1. Petitioner also asserts that “[a]dditional education could substitute for professional experience and vice versa.” Id. On the present record, Patent Owner does not dispute this proposed level of skill. Prelim. Resp. 1–78. Neither party explains why the outcome of this case would be affected by the adoption of any of the proffered definitions of a person of ordinary skill in the art. For purposes of this Decision, we adopt Petitioner’s assessment of the level of ordinary skill in the art, as it appears consistent with the ’481 patent and the asserted prior art. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001).” slip op. at 7
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededNot reached
“On the present record, neither party proposes any claim terms for construction. Pet. 3; Prelim. Resp. 1–78. As discussed below, we are able to determine whether to institute review without resolving the construction of any claim terms. Accordingly, we need not and do not construe any terms expressly. See Realtime Data, LLC v. Iancu, 912 F.3d 1368, 1375 (Fed. Cir. 2019) (“The Board is required to construe ‘only those terms . . . that are in controversy, and only to the extent necessary to resolve the controversy.’” (quoting Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999))).” slip op. at 8
- Obviousness (§103) › Graham factors (scope of art, differences, level of skill)Not shown unpatentableNot shown unpatentable
“‘run[ning] generally parallel to the lateral extent of a semiconductor material or semiconductor carrier’” and that “[t]he ’481 patent . . . describes a device that ‘has a lateral drift path.’” Pet. 24 (quoting Ex. 1001, 3:14–18, 4:37–38). Patent Owner directs us to a statement in the prosecution history that “[a] lateral transistor is a transistor in which current flows across ‘in the direction parallel to’ the device surface,” as opposed to “a vertical transistor,” in which “[c]urrent ‘flows in the direction normal to’ the device surface.” Prelim. Resp. 8 (quoting Ex. 1002, 33–34). Thus, the parties generally agree that a lateral transistor is a transistor in which current flows in a direction parallel to the surface of the transistor. Petitioner argues that Nega teaches or suggests a transistor in which current flows parallel to the surface because Nega’s source, gate, and drain electrodes “are spread laterally in a lateral drift path, instead of vertically stacked.” Pet. 24–25 (citing Ex. 1005, Fig. 2). Patent Owner argues to the contrary that the placement of source, gate, and drain electrodes in the same lateral plane, rather than in a vertical stack, does not necessarily indicate that the current flow within the transistor is parallel to the surface. Prelim. Resp. 47–48 (citing Ex. 2002, 7–8, Figs. 1.7a, 1.7c). According to Patent Owner, transistors with electrodes in the same horizontal plane can have either lateral or vertical current flow. Id. Thus, Patent Owner argues, the lateral placement of the source, gate, and drain electrodes in Nega does not mean that Nega teaches or suggests a lateral transistor. On the present record, we agree with Patent Owner that Petitioner has not shown sufficiently that Nega teaches a transistor in which current flows in a direction parallel to the surface, rather than in a direction normal to the surface. Transistors with current flow in either direction can have electrodes located on a common horizontal plane, with the direction of the current flow depending on the configuration of doped semiconductor regions located below the electrodes. Ex. 2002, Figs. 1.7a, 1.7c. Because Petitioner relies on the location of Nega’s electrodes, rather than on any particular configuration of doped semiconductor regions in Nega, Petitioner does not show sufficiently that Nega teaches a lateral transistor.” slip op. at 10
Claim construction§ 103 obviousnesscites Phillips · KSR · GrahamPatents in suitUS 9,899,481 - Micron Technology, Inc. v. Yangtze Memory Technologies Company, Ltd.Institution deniedPTAB · Dec 10, 2024 · IPR2024-00910 · APJ Jo-Anne M Kokoski · IPR · Institution
The Board denied institution because Micron did not show a reasonable likelihood that claims 7–10 would have been obvious over Park.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied
“structure that does not function as a source to the memory cell.” Section II.B.1, supra. Thus, Petitioner must show that Park’s common source lines 144 and dummy source lines 146 do not function as sources to the memory cell. Harmonic Inc. v. Avid Tech. Inc., 815 F.3d 1356, 1363 (Fed. Cir. 2016) (stating that it is Petitioner’s burden to show with particularity why a challenged claim is unpatentable); see also 37 C.F.R. § 42.104(b)(4) (A petition “must specify where each element of the claim is found in the prior art patents or printed publications relied upon.”). Based on the current record, we are not persuaded that Petitioner sufficiently shows that Park teaches the claimed “dummy source structure.” Petitioner’s reasoning with respect to common source lines 144 is based on Petitioner’s proposed claim construction, which we do not adopt for purposes of this Decision. See Pet. 54–60. Park distinguishes common source lines 144 that are included on the memory cell structure with first and second channel structures 120a and 120b, and gate lines 134 from dummy source lines 146 that are included on the dummy region with second structure 140 and third channel structure 120c that “may not serve as a channel of the memory cell, and may merely serve as a supporting pillar of the second structure 140.” Ex. 1005, 6:9–11, 8:1–2, 8:57–60. That common source lines 144 are disposed on the cell region of the substrate while dummy source lines 146 are disposed on the dummy region alone at least indicates that the common source lines 144 and dummy source lines 146 may not operate in the same way or serve the same purpose. On this record, neither Petitioner nor Dr. Banerjee sufficiently explains why Park’s common source lines 144 are “structures that do not function as sources for the memory cell.”” slip op. at 21
- Skill levelSkill level petitioner adoptedDecided for petitioner
“II. ANALYSIS A. Level of Ordinary Skill in the Art Petitioner contends that a person of ordinary skill in the art (“POSITA”) would have had “a bachelor of science degree in electrical engineering or a similar discipline” with “2–3 years of professional experience working with (e.g., researching, designing, or teaching) monolithic 3D structures and NAND memory devices,” or “an equivalent level of skill, knowledge, and experience (e.g., an advanced degree may replace some of the professional experience).” Pet. 38. Petitioner further contends 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. (citing Ex. 1003 ¶¶ 40–43). At this stage of the proceeding, Patent Owner neither responds to Petitioner’s proposed definition, nor provides a definition of its own. See generally, Prelim. Resp. Petitioner’s undisputed proposed definition appears to be consistent with the cited prior art and the disclosure of the ’872 patent, and we adopt it for purposes of this Decision. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001) (explaining that specific findings regarding ordinary skill” slip op. at 6
- Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed patent owner constructionDecided for patent owner
“The Specification teaches that “[e]ach dummy source structure may include an insulating spacer layer in a dummy source hole and a conductive contact within the spacer layer.” Ex. 1001, 5:37–40; see also id. at 11:39–43 (“Dummy source structure 178 can further include a spacer 177 made of any suitable dielectric materials (e.g., silicon oxide) between contact 179 and memory stack 160 to electrically separate surrounding conductive layers 106 in memory stack 160 from contact 179.”). The Specification further teaches that “[i]n some embodiments, one or more dummy source structures are in contact with the substrate and may provide interconnect between the 3D memory device and peripheral devices.” Id. at 5:40–43; see also id. at 11:46–49 (“In some embodiments, dummy source structures 178 may function as interconnects to connect 3D memory device 100 with other peripheral devices.”). The Specification teaches that such peripheral devices include “any suitable digital, analog, and/or mixed-signal peripheral circuits used for facilitating the operation of 3D memory device 100, such as page buffers, decoders, and latches.” Id. at 9:34–42. The Specification explains that dummy source structures “can be uniformly distributed in the staircase structure,” and the arrangement of the dummy source structures “may improve the uniformity and stability for etching dummy channel holes in the staircase region” and “may allow the gate electrode/word lines to be formed with improved uniformity and quality, reducing the resistivity of the gate electrodes/word lines.” Id. at 5:43–52; see also id. at 8:49–53 (“The symmetrical architecture of dummy channel structures and dummy source structures can improve the performance and efficiency of etching processes. Different layouts, patterns, and designs may be adopted based on the size of the staircase region.”).” slip op. at 11
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededDecided for patent owner
“currently before us, and for purposes of this Decision, we agree with Patent Owner that “surrounding” requires more than structures on two sides of the object. The Specification repeatedly uses “between” to describe objects in the middle of two structures. See, e.g., Ex. 1001, 3:65–67 (“a layer can be located between any pair of horizontal planes between, or at, a top surface and a bottom surface of the continuous structure”), 4:56–57 (“dummy channel holes are formed between adjacent GLSs”), 7:12–15 (“one or more dummy channel structures may be located between two dummy source structures, and vice versa”), 7:16–17 (“at least one dummy source structure may be located between two staircase contacts”), 9:63–64 (“an insulation layer (not shown) is formed between substrate 102 and memory stack 160), 17:42–44 (“at least one dummy source structure is located between the first and second staircase contacts”). In contrast, the Specification uses “surrounding” to indicate an object in the middle of more than two structures. See, e.g., id. at 6:38–41 (“multiple dummy source structures, such as the four dummy source structures indicated by a diamond shape 146, may surround a staircase contact, such as staircase contact 122”), 6:60–63 (“A plurality of dummy channel structures, such as the four dummy channel structures indicated by square shape 148, may surround a staircase contact.”), 7:31–34 (“four dummy channel structures indicated by dashed-line square shape 142 are surrounded by eight dummy source structures indicated by an octagon 144”), 7:38–40 (“one dummy channel structure indicated by dashed-line square 147 is surrounded by four dummy source structures indicated by a diamond 149”), 17:61–62 (“at least one dummy channel structure is surrounded by at least four dummy source structures”), 17:63–64 (“at least two dummy channel structures are surrounded by at least six dummy source structures”), 17:65–67 (“at least four dummy channel structures are surrounded by at least eight dummy source structures”). That claim 15 recites “wherein at least one dummy channel structure is surrounded by at least four dummy source structures” and claim 14, from which claim 15 depends, recites “wherein a subset of the dummy channel structures is surrounded by the plurality of dummy source structures,” does not require a different result. While we agree with Petitioner that the doctrine of claim differentiation may “impl[y] that ‘surrounded’ in independent claim 14 covers implementations in which fewer than four dummy source structures surround a single dummy channel structure,” that does not require that “surround” encompasses a dummy channel structure between two dummy source structures. Pet. 33 (citing Ex. 1001, claim 15 (21:9–11)). For example, three dummy source structures surrounding one dummy source structure could satisfy claim 14 but not claim 15 (“at least four dummy source structures”). Accordingly, we determine that “surrounding” in claim 1 of the ’872 patent does not encompass structures on only two sides of an object. We need not provide an explicit construction of “surrounding,” as terms in controversy need to be construed only to the extent necessary to resolve the controversy. Realtime Data, 912 F.3d at 1375.” slip op. at 15
Claim construction§ 103 obviousnesscites PhillipsPatents in suitUS 10,861,872 - Micron Technology, Inc. v. Yangtze Memory Technologies Company, Ltd.Institution deniedPTAB · Dec 10, 2024 · IPR2024-00912 · APJ Jo-Anne M Kokoski · IPR · Institution
The Board denied institution because Micron did not show a reasonable likelihood that claim 7 was obvious over Seo and Choi or Nam and Choi.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsDenied
“Institution of an inter partes review is authorized by statute 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 (2018); see also 37 C.F.R. § 42.4 (2023). For the reasons discussed below, we deny the Petition and do not institute an inter partes review.” slip op. at 2
- Skill levelSkill level petitioner adoptedOther
“(“POSITA”) would have had “a master’s degree in electrical engineering or a similar discipline” with “4–5 years of professional experience working with (e.g., researching, designing, or developing) NAND flash memory devices (including issues relating to the operation, e.g., reading of said devices), or an equivalent level of skill, knowledge, and experience (e.g., an advanced degree may replace some of the professional experience).” Pet. 28–29 (citing Ex. 1003 ¶¶ 35–39). At this stage of the proceeding, Patent Owner neither responds to Petitioner’s proposed definition, nor 1 The Leahy-Smith America Invents Act (“AIA”), Pub. L. No. 112–29, 125 Stat. 284 (2011), revised 35 U.S.C. §§ 102 and 103 effective March 16, 2013. Because the ’342 patent has an effective filing date after March 16, 2013 (Ex. 1001, codes (22), (63)), we refer to the AIA version of Sections 102 and 103. 2 Seo, US 2021/0027848 A1, published Jan. 28, 2021 (Ex. 1005). 3 Bongsik Choi et al., Comprehensive evaluation of early retention (fast charge loss within a few seconds) characteristics in tube-type 3-D NAND Flash Memory, SYMPOSIUM ON VLSI TECHNOLOGY DIGEST OF TECHNICAL PAPERS, 78–79 (2016) (Ex. 1007). 4 Nam, US 2015/0003169 A1, published Jan. 1, 2015 (Ex. 1006). undisputed proposed definition appears to be consistent with the cited prior art and the disclosure of the ’342 patent, and we adopt it for purposes of this Decision. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001) (explaining that specific findings regarding ordinary skill level are not required “where the prior art itself reflects an appropriate level and a need for testimony is not shown” (quoting Litton Indus. Prods., Inc. v. Solid State Sys. Corp., 755 F.2d 158, 163 (Fed. Cir. 1985))).” slip op. at 6
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededOther
“customary meaning of such claim as understood by one of ordinary skill in the art and the prosecution history pertaining to the patent.” 37 C.F.R. § 42.100(b). Under this standard, claim terms are generally given their plain and ordinary meaning as would have been understood by a person of ordinary skill in the art at the time of the invention and in the context of the entire patent disclosure. Phillips v. AWH Corp., 415 F.3d 1303, 1313 (Fed. Cir. 2005) (en banc). Only those terms in controversy need to be construed, and only to the extent necessary to resolve the controversy. Realtime Data, LLC v. Iancu, 912 F.3d 1368, 1375 (Fed. Cir. 2019). 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) › Objective indicia / secondary considerationsNot reached
“techniques for removing fast charges during a read-verification operation.” Prelim. Resp. 28. In order to rely on inherency to establish the existence of a missing claim limitation in an obviousness analysis, “the limitation at issue necessarily must be present, or the natural result of the combination of elements explicitly disclosed by the prior art.” PAR Pharma, Inc. v. TWi Pharms., Inc., 773 F.3d 1186, 1195–96 (Fed. Cir. 2014). Petitioner, therefore, must show that fast charges of the target memory cell necessarily are removed during the first time period of Seo’s read-verification operation. On this record, neither Petitioner nor Dr. Liu sufficiently demonstrates that Seo’s read-verification operation would necessarily remove fast charges of the target memory cell during the first time period.” slip op. at 12
Claim construction§ 102 anticipation§ 103 obviousnesscites PhillipsPatents in suitUS 11,600,342
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.