- PTAB · Dec 19, 2025 · IPR2025-01110 · APJ Kristen L Droesch · IPR · Institution
The Board instituted IPR on claims 1–16, finding a reasonable likelihood they are obvious over Kim and over Chu and Choi.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“An inter partes review may not be instituted unless it is determined that “the information presented in the petition filed under section 311 and any response filed under section 313 shows that there is a reasonable 1 Deputy Director Stewart was recused in this matter. claims challenged in the petition.” 35 U.S.C. § 314(a). For the reasons provided below, we determine, based on the record before us, there is a reasonable likelihood Petitioner would prevail in showing at least one of the challenged claims is unpatentable.” slip op. at 2
- Skill levelSkill level petitioner adoptedDecided for petitioner
“had a Bachelor’s degree in electrical engineering, computer engineering, computer science, or a related field, and at least 3 years of experience in the research, design or development of wireless communication devices, systems, and/or networks, or the equivalent, as of the Critical Date,” and that “[i]ncreased educational experience can make up for less work experience, and vice versa.” Pet. 2 (citing Ex. 1003 ¶¶ 26–28). Patent Owner does not dispute Petitioner’s proposed level of ordinary skill in the art, except as to the date that pertains to such skill level. Prelim. Resp. 4–5. Namely, Patent Owner asserts that “Petitioner is incorrect” that “the ’171 Patent is entitled to an effective date of no earlier than January 22, 2021.” Id. at 5. For the purpose of institution, we adopt Petitioner’s definition of a person of ordinary skill in the art because it is consistent with the level of skill reflected by the ’171 Patent Specification and the asserted prior art, except that we delete the qualifier “at least” to eliminate vagueness as to the amount of required experience.” slip op. at 10
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededDecided for patent owner
“claim construction standard as that applied in federal courts in a civil action under 35 U.S.C. § 282(b), which is generally referred to as the Phillips standard. See 37 C.F.R. § 42.100(b); Phillips v. AWH Corp., 415 F.3d 1303 (Fed. Cir. 2005) (en banc). Under the Phillips standard, “words of a claim ‘are generally given their ordinary and customary meaning.’” Phillips, 415 F.3d at 1312. “Petitioner submits that no formal claim constructions are necessary.” Pet. 1–2. Similarly, “Patent Owner does not contend that any formal claim construction is necessary” at this stage of the proceeding. Prelim. Resp. 5. For the purpose of institution, we need not explicitly construe any claim terms. See Realtime Data, LLC v. Iancu, 912 F.3d 1368, 1375 (Fed. 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 9
- Disclosure Requirements (§112) › Written description (Ariad)Not entitled to earlier dateDecided for petitioner
“Corp. Techs., Inc. v. Microsoft Corp., 627 F.3d 859, 870–71 (Fed. Cir. 2010). For a claim in a later-filed application to be entitled to the filing date of an earlier application, the earlier application must provide written description support for the claimed subject matter. Anascape, Ltd. v. Nintendo of Am. Inc., 601 F.3d 1333, 1337 (Fed. Cir. 2010). To satisfy the written description requirement, “a prior application itself must describe an invention, and do so in sufficient detail that one skilled in the art can clearly conclude that the inventor invented the claimed invention as of the filing date sought.” Lockwood v. Am. Airlines, Inc., 107 F.3d 1565, 1572 (Fed. Cir. 1997); see also VasCath v. Mahurkar, 935 F.2d 1555, 1563–64 (Fed. Cir. 1991) (“[T]he applicant must [] convey with reasonable clarity to those skilled in the art that, as of the filing date sought, he or she was in possession of the invention . . . now claimed.”), Ariad Pharm. Inc. v. Eli Lilly & Co., 598 F.3d 1336, 1352 (Fed. Cir. 2010) (en banc) (“[I]t is the specification itself that must demonstrate possession.”). On the record before us, we do not agree that the ’171 Patent is entitled to a filing date earlier than Jan. 11, 2021. In particular, we do not agree that PCT ’199 describes the invention in enough detail such that a person of ordinary skill in the art could conclude that the inventor was in possession of the invention as of the March 4, 2016 filing date. The disclosures of PCT ’199 cited by Patent Owner to show written description support show: (1) transmission packets for multi-user uplink data, which includes padding such that multi-user upstream data transfers from each resource terminate at the same time (see Ex. 1012 ¶¶ 17–21); (2) performing padding on a trigger frame that triggers multi-user simultaneous transmission, where the trigger frame includes AID information of the performing preset padding before the FCS field of the trigger frame according to one embodiment (see Ex. 1012 ¶ 136, Fig. 20); and (4) inserting redundant AID information prior to the FCS field of the trigger frame, according to another embodiment (see Ex. 1012 ¶ 136, Fig. 20). PCT ’199 does not describe the invention in enough detail to enable a person of ordinary skill in the art to conclude that the inventor possessed a frame for allocating resource for uplink (UL) multi-user (MU) transmission to one or more terminals that includes the AID field set to a value related to a first padding field, when the padding field is included in the frame. In particular, we discern no disclosure that conveys that the inventor possessed the following: (1) an AID field for the MU UL resource allocation frame is set to a value, (2) that the AID field is set to a value related to the padding field, and (3) that the AID field is set to a value related to the padding field, and conditioned on the inclusion of the AID field in the frame. Moreover, to the extent that Patent Owner’s assertions are premised on the PCT ’199’s disclosure of a preset padding being performed before the FCS field of the trigger frame and the disclosure of inserting redundant AID information prior to the FCS field of the trigger frame, we note that these disclosures are directed to two embodiments. See Ex. 1012 ¶ 136, Fig. 20. PCT ’199 does not provide any suggestion that the two embodiments are used together, or that the redundant AID information of one embodiment can serve as a preset padding of the other embodiment.” slip op. at 16
Claim construction§ 103 obviousness§ 112 disclosurecites Phillips · GrahamPatents in suitUS 11,716,171 - PTAB · Dec 19, 2025 · IPR2025-01111 · APJ Kristen L Droesch · IPR · Institution
The Board instituted IPR on claims 1–18, finding a reasonable likelihood they are unpatentable over Kim and over Chu in combination with Choi.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“An inter partes review may not be instituted unless it is determined that “the information presented in the petition filed under section 311 and any response filed under section 313 shows that there is a reasonable 1 Deputy Director Stewart was recused in this matter. claims challenged in the petition.” 35 U.S.C. § 314(a). For the reasons provided below, we determine, based on the record before us, there is a reasonable likelihood Petitioner would prevail in showing at least one of the challenged claims is unpatentable.” slip op. at 2
- Skill levelSkill level petitioner adoptedDecided for petitioner
“had a Bachelor’s degree in electrical engineering, computer engineering, computer science, or a related field, and at least 3 years of experience in the research, design or development of wireless communication devices, systems, and/or networks, or the equivalent, as of the Critical Date,” and that “[i]ncreased educational experience can make up for less work experience, and vice versa.” Pet. 2 (citing Ex. 1003 ¶¶ 26–28). Patent Owner does not dispute Petitioner’s proposed level of ordinary skill in the art, except as to the date that pertains to such skill level. Prelim. Resp. 4. Namely, Patent Owner asserts that “Petitioner is incorrect” that “the ’186 Patent is entitled to an effective date of no earlier than April 8, 2019.” Id. at 4–5. For the purpose of institution, we adopt Petitioner’s definition of a person of ordinary skill in the art because it is consistent with the level of skill reflected by the ’186 Patent Specification and the asserted prior art, except that we delete the qualifier “at least” to eliminate vagueness as to the amount of required experience.” slip op. at 10
- Disclosure Requirements (§112) › Written description (Ariad)Not entitled to earlier dateDecided for petitioner
“of an earlier application, the earlier application must provide written description support for the claimed subject matter. Anascape, Ltd. v. Nintendo of Am. Inc., 601 F.3d 1333, 1337 (Fed. Cir. 2010). To satisfy the written description requirement, “a prior application itself must describe an invention, and do so in sufficient detail that one skilled in the art can clearly conclude that the inventor invented the claimed invention as of the filing date sought.” Lockwood v. Am. Airlines, Inc., 107 F.3d 1565, 1572 (Fed. Cir. 1997); see also VasCath v. Mahurkar, 935 F.2d 1555, 1563–64 (Fed. Cir. 1991) (“[T]he applicant must [] convey with reasonable clarity to those skilled in the art that, as of the filing date sought, he or she was in possession of the invention . . . now claimed.”), Ariad Pharm. Inc. v. Eli Lilly & Co., 598 F.3d 1336, 1352 (Fed. Cir. 2010) (en banc) (“[I]t is the specification itself that must demonstrate possession.”). On the record before us, we do not agree that the ’186 Patent is entitled to a filing date earlier than April 8, 2019. In particular, we do not agree that PCT ’199 describes the invention in enough detail such that a person of ordinary skill in the art could conclude that the inventor was in possession of the invention as of the March 4, 2016 filing date. The disclosures of PCT ’199 cited by Patent Owner to show written description support, show: (1) transmission packets for multi-user uplink data, which includes padding such that multi-user upstream data transfers from each resource terminate at the same time (see Ex. 1012 ¶¶ 17–21); (2) performing padding on a trigger frame that triggers multi-user simultaneous transmission, where the trigger frame includes AID information of the stations assigned to each channel (see Ex. 1012 ¶¶ 134–135, Fig. 20); (3) performing preset padding before the FCS field of the trigger frame inserting redundant AID information prior to the FCS field of the trigger frame, according to another embodiment (see Ex. 1012 ¶ 136, Fig. 20). PCT ’199 does not describe the invention in enough detail to enable a person of ordinary skill in the art to conclude that the inventor possessed a trigger frame indicating uplink transmission for one or more terminals that includes an AID field used to identify whether the trigger frame includes a padding field, and the trigger frame including the padding field when the AID field is set to a specific value. In particular, we discern no disclosure that conveys that the inventor possessed the following: (1) a trigger frame indicating uplink transmission to one or more terminals and including an AID field used to identify whether the trigger frame includes a padding field; (2) the AID field for the trigger frame is set to a specific value, and (3) that trigger frame includes the padding field when the AID field is set to a specific value. Moreover, to the extent that Patent Owner’s assertions are premised on the PCT ’199’s disclosure of a preset padding being performed before the FCS field of the trigger frame and the disclosure of inserting redundant AID information prior to the FCS field of the trigger frame, we note that these disclosures are directed to two embodiments. See Ex. 1012 ¶ 136, Fig. 20. PCT ’199 does not provide any suggestion that the two embodiments are used together, or that the redundant AID information of one embodiment can serve as a preset padding of the other embodiment. On the record before us, we also do not agree that KR ’754 describes the invention in enough detail such that a person of ordinary skill in the art could conclude that the inventor was in possession of the invention as of the March 17, 2015 filing date of KR ’754. The disclosures of KR ’754 cited by Patent Owner to show written description support show: (1) multiplexed terminals over respective channels, (see Ex. 1008 ¶¶ 65–66, Fig. 10); (2) differing the number of AID values in the batch acknowledgment (BA) information field when the number of terminals assigned to each channel differs, setting the length of each multiplexed group ACK differently, and, if necessary, aligning the lengths of the multiplexed group ACKs based on the channel with the longest assigned BA information by adding zero padding or repeatedly inserting BA information (see Ex. 1008 ¶¶ 66–70, Fig. 11); and (3) applying the use of the AID field padding and the use of BA padding in a downlink OFDMA trigger process during multi-user downlink transmission to align the length of the trigger when the AP notifies the terminals assigned to each channel by inserting zero padding or repeating AIDs (see Ex. 1008 ¶¶ 71–72, Figs. 11–12). KR ’754 does not describe the invention in enough detail to enable a person of ordinary skill in the art to conclude that the inventor possessed a trigger frame indicating uplink transmission for one or more terminals that includes an AID field used to identify whether the trigger frame includes a padding field, and the trigger frame including the padding field when the AID field is set to a specific value. In particular, we do not discern disclosure in KR ’754 that conveys that the inventor possessed the following: (1) a trigger frame indicating uplink transmission to one or more terminals and including an AID field used to identify whether the trigger frame includes a padding field; (2) the AID field for the trigger frame is set to a specific value, and (3) that trigger frame includes the padding field when the AID field is set to a specific value. We find misplaced Patent Owner’s argument that “KR ’754’s discussion about Figure 10 and Figure 11 would have been understood [by a POSITA] as disclosing a padding method used to improve predictability and consistency trigger frame” (Prelim. Resp. 12) because: (1) it addresses uplink transmissions and not a trigger frame indicating uplink transmission to one or more terminals; (2) it does not address that the padding field is included in the trigger frame when the AID field is set to a specific value; and (3) it is unsupported attorney argument regarding the understanding of a person of ordinary skill in the art. Argument of counsel cannot take the place of objective evidence. See Gemtron Corp. v. Saint-Gobain Corp., 572 F.3d 1371, 1380 (Fed. Cir. 2009). We also find misplaced Patent Owner’s argument that “the padding discussed by KR ’754 regarding its Figure 12 embodiment is not limited to downlink transmission and would have been understood by a POSITA as also being used to schedule uplink ones” (Prelim Resp. 14) because: (1) KR ’754 does not provide any suggestion that the same technique can be used for uplink transmission trigger frames; (2) Patent Owner’s argument does not address that the padding field is included in the trigger frame when the AID field is set to a specific value; and (3) Patent Owner’s argument is unsupported attorney argument regarding the understanding of a person of ordinary skill in the art. See Gemtron, 572 F.3d at 1380. For the foregoing reasons and based on this record, for the purpose of institution, we find that the ’186 Patent is not entitled to an effective filing date earlier than April 8, 2019 and find that Kim is prior art. We note that the limitations at the heart of the written description dispute were added in an amendment filed August 9, 2020. See Ex. 1002, 214–21. In further briefing, the parties should address the respective burdens of production and persuasion for establishing that the ’186 Patent is entitled to an earlier” slip op. at 16
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundDecided for petitioner
“We do not agree with Patent Owner’s arguments because they are premised on Choi’s teachings as limited to AIDs transmitted via a control frame broadcast as a TIM element. A prior art “reference must be considered for everything it teaches by way of technology and is not limited to the particular invention it is describing and attempting to protect.” EWP Corp. v. Reliance Universal Inc., 755 F.2d 898, 907 (Fed. Cir. 1985) (emphasis omitted). Chu, Choi, and the testimony of Dr. Ding (Ex. 1003), we are persuaded Petitioner sets forth sufficient articulated reasoning with rational underpinning to support the conclusion that it would have been obvious to a person of ordinary skill in the art to combine Chu’s teachings with Choi’s use of specific AID or ΔAID values as indicators of the end of meaningful data and the beginning of padding that would allow client stations to reliably determine where the useful content of the trigger frame ends and where optional padding begins, with the benefits of improved parsing efficiency, enhanced synchronization, and reduced likelihood of misinterpreting padding as data as padding. See Pet. 46–48 (citing Ex. 1003 ¶¶ 150–156; Ex. 1015 ¶ 93; Ex. 1016 ¶¶ 24, 184), 61–62 (citing Ex. 1003 ¶¶ 157–163, Pet. 45–48); KSR, 550 U.S. at 418.” slip op. at 29
§ 103 obviousness§ 112 disclosurecites Phillips · GrahamPatents in suitUS 10,911,186 - Good Sportsman Marketing, LLC v. Hangzhou ZH Tech Co., Ltd.All claims unpatentablePTAB · Nov 20, 2025 · PGR2024-00034 · APJ Annette R Reimers · PGR · Final written decision
Claims 1–19 are unpatentable: claims 1–19 as obvious over Unger and Smith, claim 18 also as obvious over Unger, Smith, and Hakansson, and claims 3–6, 8, 9, and 16 as indefinite.
RulingsFinal written decision- Skill levelSkill level petitioner adoptedDecided for petitioner
“We note that the identification of a Ph.D. as an example of “more formal education” creates a vast range of education relative to a bachelor’s degree. Thus, we treat the identification of a Ph.D. just as it is—an example—and not a requirement. In this case, “more formal education” can be satisfied by a level of education less than a Ph.D (but greater than a bachelor’s degree). Based on our review of the record before us, we determine that Petitioner’s stated level of ordinary skill in the art is reasonable because it appears consistent with the evidence of record, including the asserted prior art. Accordingly, we adopt Petitioner’s definition, limited as discussed above, for the purposes of this Decision.” slip op. at 15
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededOther
“Petitioner contends that it “does not believe any terms need to be construed to resolve the prior art issues presented in this Petition.” Pet. 20 (citing Ex. 1002 ¶ 89). any claim language because doing so would have no effect on our analyses below of Petitioner’s asserted grounds and will not assist in resolving the present controversy between the parties. See Realtime Data, LLC v. Iancu, 912 F.3d 1368, 1375 (Fed. Cir. 2019) (“The Board is required to construe ‘only those terms . . . that are in controversy, and only to the extent necessary to resolve the controversy.’”) (quoting Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999)).” slip op. at 15
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundReasonable expectation foundDecided for petitioner
“Petitioner argues that one of ordinary skill in the art would have found the proposed modification obvious for several reasons. Pet. 30. For instance, Petitioner argues that “Unger contains an express teaching, suggestion and/or motivation to incorporate an element such as Smith’s torsional spring into the lower and/or upper mount assemblies 308, 312 to facilitate attachment and detachment.” Id. Namely, Petitioner points to Unger’s disclosure that device mounts 308, 312 may be flexible or resilient so that device mounts 308, 312 may be bent to engage a portion of hearing protection device 108 and are then allowed to return to a normal state to secure communication device 104 to hearing protection device 108. Id. at 30–31 (quoting Ex. 1004, 6:20–37). Petitioner adds that one of ordinary skill in the art would have understood this disclosure “to teach that mount arms 308, 312 could be removable from housing 304 (e.g., as mount arm 312 is in Figure 6) and/or they could be designed to be ‘flexible’ or ‘resilient’ such that they can be manipulated,” and “that ‘resilient’ is defined as ‘bouncing or springing back into shape, position, etc. after being stretched, bent, or, esp., compressed.’” Id. at 31 (citing Ex. 1002 ¶ 117). Thus, according to Petitioner, this disclosure of Unger suggests using a torsion spring. Id. In addition, Petitioner asserts that one of ordinary skill in the art would have understood Unger’s disclosure to “suggest the use of a torsion designed to impart this functionality.” Pet. 30 (citing Ex. 1002 ¶ 118). Petitioner also asserts that one of ordinary skill in the art would have “understood that there were a limited number of ways to impart the referenced resilient or flexible ‘manipulation,’” and “would have been motivated to look to various known solutions to impart the suggested functionality, including the torsional spring mechanism of Smith that is used in a similar hearing protection device application for a similar purpose as Unger’s mounting arms (to apply a clamping force).” Id. at 32 (citing Ex. 1002 ¶¶ 120–121). Other reasons for combining the references set forth by Petitioner are the proposed modification: (1) “would have involved applying a known technique to a known device ready for improvement to yield predictable results” (Pet. 39–49 (citing Intel Corp. v. PACT XPP Schweiz AG, 61 F.4th 1373, 1380 (Fed. Cir. 2023); Ex. 1002 ¶ 131)), (2) would have constituted “combining prior art elements using known methods to achieve predictable results” (id. at 40 (citing KSR Int’l Co. v. Teleflex Inc., 550 U.S. 398, 416 (2007); Ex. 1002 ¶ 133)); and (3) would have been “the simple substitution of one known element (i.e., Smith’s torsion spring mechanism) into another (i.e., the connection point of Unger’s lower mount arm 308 and housing 304)” (id. at 40–41 (citing Apple Inc. v. Samsung Elecs. Co., 839 F.3d 1034, 1077 (Fed. Cir. 2016); Ex. 1002 ¶ 135)). Petitioner argues that one of ordinary skill in the art would have had a” slip op. at 22
- Obviousness (§103) › Graham factors (scope of art, differences, level of skill)UnpatentableUnpatentable
“i) Conclusion For the above reasons, we find, based on the record before us, that Petitioner establishes by a preponderance of the evidence that claim 1 would have been obvious over the combination of Unger and Smith. Patent Owner does not contend that any limitations in claim 1 are absent in the combination of Unger and Smith, or that claim 1 would not have been obvious over the combination of Unger and Smith, and therefore, has waived such arguments.8” slip op. at 28
Patent outcomesUS 11,736,855 unpatentableClaim construction§ 103 obviousness§ 112 disclosurecites KSR · Graham · NautilusPatents in suitUS 11,736,855 - Phison Electronics Corporation v. Vervain, LLCInstitution deniedPTAB · Apr 28, 2025 · PGR2024-00048 · APJ Stacey G White · PGR · Institution
The Board denied institution because Petitioner did not show it was more likely than not that claims 1–6 were unpatentable.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied
“review under 35 U.S.C. § 324 and 37 C.F.R. § 42.4(a). We may not institute a post-grant review unless “the information presented in the petition . . . , if such information is not rebutted, would demonstrate that it is more likely than not that at least 1 of the claims challenged in the petition is unpatentable.” 35 U.S.C. § 324(a) (2024). Upon considering the evidence and arguments presented, we determine, as discussed below, that Petitioner has not demonstrated that it is more likely than not that at least 1 of the claims challenged in the Petition is unpatentable. Therefore, we deny1 Petitioner’s request to institute post-grant review of claims 1–6.” slip op. at 2
- Skill levelSkill level petitioner adoptedDecided for petitioner
“Patent Owner’s declarant, Dr. Khatri, proposes a definition of the person of ordinary skill in the art. Ex. 2001 ¶ 24. Dr. Khatri, however, notes that his opinions would be the same under either his proposal or Petitioner’s proposal. Id. ¶¶ 25–26. Patent Owner states that, for purposes of the Preliminary Response, it “adopts Petitioner’s definition of a person of ordinary skill in the art.” Prelim. Resp. 13 (citing Pet. 22–23; Ex. 2001 ¶¶ 22–26). We determine that the current record supports Petitioner’s description of an ordinarily skilled artisan. For purposes of this Decision, therefore, we adopt Petitioner’s description of an ordinarily skilled artisan. We also note that the applied prior art reflects the appropriate level of skill at the time of the claimed invention. See Okajima, 261 F.3d at 1355.” slip op. at 12
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededOther
“Petitioner proposes constructions for the claim terms “MLC memory modules” and “SLC memory module.” Pet. 23–28. Patent Owner disagrees with Petitioner’s constructions, but does not contest them because it argues that construction of these terms is not necessary to resolve the parties’ disputes. Prelim. Resp. 14. Based on the record presented, we determine that no claim term requires an explicit construction to decide whether Petitioner satisfies the “more likely than not” standard for instituting a post- grant review. See Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 868 F.3d 1013, 1017 (Fed. Cir. 2017).” slip op. at 13
- Disclosure Requirements (§112) › Written description (Ariad)Written description adequateNot shown unpatentable
“using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same.” The Federal Circuit has held that “[t]he written description requirement is met when the disclosure relied on for support ‘reasonably conveys to those skilled in the art that the inventor had possession of the claimed subject matter as of the filing date.’” RAI Strategic Holdings, Inc. v. Philip Morris Prods. S.A., 92 F.4th 1085, 1088 (Fed. Cir. 2024) (quoting Ariad Pharms., Inc. v. Eli Lilly & Co., 598 F.3d 1336, 1351 (Fed. Cir. 2010) (en banc) (citation omitted)). The written description inquiry is a question of fact, is context specific, and must be determined on a case-by-case basis. Ariad, 598 F.3d at 1351 (citing Ralston Purina Co. v. Far-Mar-Co, Inc., 772 F.2d 1570, 1575 (Fed. Cir. 1985); Capon v. Eshhar, 418 F.3d 1349, 1357–58 (Fed. Cir. 2005)). “[T]he level of detail required to satisfy the written description requirement varies depending on the nature and scope of the claims and on the complexity and predictability of the relevant technology.” Id. (citing Capon, 418 F.3d at 1357–58). Factors used to evaluate the sufficiency of a disclosure include: 1) “the existing knowledge in the particular field”; 2) “the extent and content of the prior art”; 3) “the maturity of the science or technology”; and 4) “the predictability of the aspect at issue.” Id. (citing Capon, 418 F.3d at 1359). As support for the term “memory space,” the ’612 patent explains that because “the SLC NAND flash is used to boost the lifetime (endurance) of the storage system, it can be considerably lesser in amount than the MLC NAND flash.” Ex. 1001, 5:20–23; see Ex. 2001 ¶ 51. As an example, the ’612 specification states that “a system may set SLC NAND flash equal to 12.5% or 25% of MLC NAND flash (total non-volatile memory storage space=MLC+SLC).” Ex. 1001, 5:23–25; see Ex. 2001 ¶¶ 51, 62. In addition, we find persuasive Dr. Khatri’s testimony that one of ordinary skill in the art would have understood that “there are two spaces—MLC and SLC—where data is stored, and the total memory space is the combination of the two.” Ex. 2001 ¶ 51. Further, the ’612 patent’s Figure 1 depicts “memory space,” e.g., dynamic random-access memory (DRAM) 20, one or more disks 24, MLC NAND flash memory module 26, and SLC NAND flash memory module 28. Ex. 1001, 5:37–45, Fig. 1; see Ex. 2001 ¶ 64. The ’612 patent’s Figure 4 also depicts “memory space,” e.g., NAND flash memory bank 56 comprising “a plurality of MLC NAND flash memory modules 60a and a plurality of SLC NAND flash memory modules 62a” and NAND flash memory bank 58 comprising “a plurality of MLC NAND flash memory modules 60b and a plurality of SLC NAND flash memory modules 62b.” Ex. 1001, 7:8–14, Fig. 4; see Ex. 2001 ¶ 64. On the record before us, we find the above noted disclosures to be sufficient to support the disputed claim language. For these reasons, the ’612 patent’s disclosure “reasonably conveys to those skilled in the art that the inventor had possession of the claimed subject matter as of the filing date.” See Ariad, 598 F.3d at 1351.” slip op. at 15
Claim construction§ 103 obviousness§ 112 disclosurecites Phillips · KSR · Graham · NautilusPatents in suitUS 11,854,612 - Phison Electronics Corporation v. Vervain, LLCInstitution deniedPTAB · Mar 17, 2025 · PGR2024-00047 · APJ Steven M Amundson · PGR · Institution
The Board denied institution because Petitioner did not show it was more likely than not that any of claims 1–7 was unpatentable.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied
“to institute a post-grant review. We may not institute a post-grant review unless we determine that “the information presented in the petition filed under section 321, if such information is not rebutted, would demonstrate that it is more likely than not that at least 1 of the claims challenged in the petition is unpatentable.” 35 U.S.C. § 324(a) (2024).” slip op. at 2
- Patent Eligibility (§101) › Alice/Mayo step one — 'directed to'Not shown unpatentable
“2. PETITIONER’S CONTENTIONS Petitioner challenges the ’546 patent’s claims as encompassing a” slip op. at 20
- Disclosure Requirements (§112) › Written description (Ariad)Not shown unpatentable
“2. PETITIONER’S CONTENTIONS Petitioner challenges the ’546 patent’s claims as failing to satisfy” slip op. at 26
- Disclosure Requirements (§112) › Enablement (Wands, Amgen full scope)Not shown unpatentable
“2. PETITIONER’S CONTENTIONS Petitioner challenges the ’546 patent’s claims as failing to satisfy” slip op. at 36
§ 101 eligibility§ 103 obviousness§ 112 disclosureDiscretionary denialcites Alice · Mayo · Phillips · KSR · Graham · NautilusPatents in suitUS 11,830,546 - Samsung Electronics Co., Ltd. / Micron Technology, Inc. et al. v. Netlist, Inc.All claims unpatentablePTAB · Apr 17, 2024 · IPR2023-00203 · APJ Jon M Jurgovan · IPR · Final written decision
Claim 16 is unpatentable as obvious over Ellsberry; the Board did not reach the Perego-422 or Perego-422 and Amidi grounds.
RulingsFinal written decision- Skill levelSkill level petitioner adoptedDecided for petitioner
“On this record, we accept Petitioner’s statement of the level of ordinary skill in the art except that we omit the qualifiers “at least” before years of education and experience because they render the level ambiguous and may encompass levels that are beyond ordinary. Otherwise, we find Petitioner’s statement of the level of ordinary skill in the art consistent with the ’912 patent and the applied prior art references. Okajima v. Bourdeau, 261 F.3d 1350, 1354–55 (Fed. Cir. 2001) (the applied prior art may reflect an appropriate level of skill).” slip op. at 12
- Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed petitioner constructionDecided for petitioner
“However, the subsequent emphasized sentences (id. at 8:54–60) could only be understood in favor of Petitioner’s interpretation. If “the command signal is passed through to both associated ranks” and “the command signal is sent to both memory devices,” each rank must have only one memory device. Thus, we agree with Petitioner that this passage means that a rank may have only one memory device. Patent Owner argues that this paragraph of the ’912 patent (id. at 8:44–64) must be read in conjunction with its Figures which show multiple memory devices per rank. PO Resp. 7 (citing Ex. 1001, 6:31–38, 20:64–65, 22:34–35, Figs. 1A, 1B, 2A, 3A; Ex. 2062 ¶¶ 106–107). However, the disputed paragraph refers to “certain embodiments” which do not necessarily correspond exactly to what the Figures depict, and the Figures are described as “exemplary” and “compatible with” or “in accordance with certain embodiments described herein.” See, e.g., Ex. 1001, 3:32–48. We find no statement here or elsewhere in the ’912 patent that a rank must include multiple memory devices, and cannot include a single memory device.” slip op. at 18
- Disclosure Requirements (§112) › Written description (Ariad)Written description inadequateDecided for petitioner
“We agree with Petitioner that the ’244 provisional does not provide written description support under § 112 ¶ 1 for claim 16 of the ’912 patent. There is no mention of “bank address” signals in the ’244 provisional. In order to find that “bank address” signals are present, according to Patent Owner’s arguments and the evidence presented, one would have to (1) assume at least that the ’244 provisional pertains to DDR memory modules (when there is no mention of DDR and there were other types of DRAM devices on the market) because Figure 1 suggests them by its use of chip select signals and the term “rank,” and because they were the most common at the time; (2) understand that DDR DRAMs use bank address signals according to the JEDEC standards; (3) recognize that bank address signals are not mentioned in the ’244 provisional; (4) infer that bank address signals would be included as part of the control signals (even though the other address signals are explicitly mentioned and set out separately); and (5) infer that the bank address signals are used for rank multiplication (when row/ and column/address could have been used for this purpose). This is a chain of inferences too long and speculative to show that the ’244 provisional demonstrates that the inventors had possession of the subject matter of claim 16.” slip op. at 29
- Novelty / Anticipation (§102) › Prior-art status of a reference › Printed publication / public accessibilityReference is prior artPrinted publication establishedDecided for petitioner
“We agree with Petitioner on this issue, which is currently on appeal before the Court of Appeals for the Federal Circuit. Lynk Labs, Inc. v. Samsung Electronics Co., Ltd., Appeal No. 23-2346, Doc. 14, page 15 (Fed. Cir. Jan. 10, 2024). In an inter partes review, a petitioner “may request to cancel as unpatentable 1 or more claims of a patent only on a 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). Ellsberry is a printed publication, having been published in December 2006, as Patent Owner acknowledges. See Ex. 1037, code (43) (publication date of Dec. 7, 2006); see also PO Resp. 54 (acknowledging publication in December 2006). Ellsberry is prior art at least under 35 U.S.C. § 102(e)(1), being “an application for patent, published under section 122(b), by another filed in the United States before the invention by the applicant for patent.” See Ex. 1037, code (22) (filing date of June 1, 2005). Thus, Petitioner asserts a permissible ground of unpatentability under 35 U.S.C. § 311(b) because it argues that claim 16 is unpatentable under 35 U.S.C. § 103(a) on the basis of prior art (Ellsberry), which is a printed publication. Accordingly, we determine that Ellsberry is prior art to the ’912 patent at least under pre-AIA 35 U.S.C. § 102(e)(1).” slip op. at 35
Patent outcomesUS 7,619,912 unpatentableClaim construction§ 102 anticipation§ 103 obviousness§ 112 disclosurecites Phillips · KSR · GrahamPatents in suitUS 7,619,912 - Unified Patents, LLC v. Ideahub Inc.All claims unpatentablePTAB · Feb 5, 2024 · PGR2022-00044 · APJ Monica S Ullagaddi · PGR · Final written decision
Claims 1–13 are unpatentable for lack of written description under § 112(a); the Board did not reach the anticipation and obviousness grounds based on HEVC265.
RulingsFinal written decision- Skill levelSkill level petitioner adoptedDecided for petitioner
“B. Level of Ordinary Skill in the Art Petitioner contends that: A person of ordinary skill in the art at the priority date for the ’274 Patent (“POSITA”) would have had a bachelor’s degree in electrical or computer engineering, or a closely related scientific field such as physics or computer science, and two years of work experience with video processing. A lack of experience can be remedied with additional education (e.g., a Master’s degree), and likewise, a lack of education can be remedied with additional work experience (e.g., 4–5 years). This definition would apply at the earliest claimed priority date of the ’274 Patent as well as any later date. Pet. 12 (citing Ex. 1005 ¶¶ 50–52). Patent Owner does not dispute the level of ordinary skill in the art. See generally PO Resp. We adopt Petitioner’s definition as it appears to be consistent with the Specification of the ’274 patent and the cited reference.” slip op. at 14
- PTAB / AIA Trials › §315(e) estoppelEstoppel appliesDecided for petitioner
“A party is collaterally estopped from relitigating an issue if: (1) a prior action presents an identical issue; (2) the prior action actually litigated and adjudged that issue; (3) the judgment in that prior action necessarily required determination of the identical issue; and (4) the prior action featured full representation of the estopped party. VirnetX Inc. v. Apple, Inc., 909 F.3d 1375, 1377 (Fed. Cir. 2018) (citing Stephen Slesinger, Inc. v. Disney Enterprises, Inc., 702 F.3d 640, 644 (Fed. Cir. 2012)).” slip op. at 21
- Disclosure Requirements (§112) › Written description (Ariad)Written description inadequateUnpatentable
- Novelty / Anticipation (§102) › Priority / effective filing date / continuation supportDecided for petitioner
“For the reasons that follow, we determine that the ’928 application does not provide sufficient written description support, for at least independent claim 1 of the ’274 patent, so as to “reasonably convey[] to those skilled in the art that the inventor had possession of the claimed subject matter as of the filing date” of the ’928 application. Ariad, 598 F.3d at 1351. Accordingly, we are persuaded that the ’928 application lacks sufficient written description support for the invention recited in claim 1 of the ’274 patent, and thus, claim 1 does not receive an effective filing date as early as that of the ’928 application (i.e., December 23, 2010). We further determine that Petitioner filed the Petition within the 9-month statutory period for requesting post-grant review in accordance with 35 U.S.C. § 321(c). The ’274 patent issued on September 14, 2021 (see Ex. 1001, code (45)), and the present Petition was accorded a filing date of June 9, 2022 (see Paper 5). Accordingly, the Petition was filed less than 9 months after the date of issuance of the ’274 patent. In view of the above, we are persuaded that the ’274 patent is eligible for post-grant review.” slip op. at 16
Patent outcomesUS 11,122,274 unpatentable§ 102 anticipation§ 103 obviousness§ 112 disclosurecites Phillips · KSR · GrahamPatents in suitUS 11,122,274 - Google LLC v. Jenam Tech, LLCInstitution deniedPTAB · Dec 8, 2023 · IPR2023-00928 · APJ Jason M Repko · IPR · Institution
The Board denied institution because the challenged claims were entitled to the 2010 priority date, making Morris not prior art and defeating the sole obviousness ground.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied
“To institute an inter partes review, we must determine “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). For the reasons discussed below, Petitioner has not shown a reasonable likelihood that it would prevail with respect to any claims challenged in the Petition. Thus, we deny institution of inter partes review.” slip op. at 2
- Disclosure Requirements (§112) › Written description (Ariad)Written description adequateEntitled to earlier dateDecided for patent owner
“written-description requirement. Pet. 74. We disagree for two principal reasons. First, the paragraph explicitly describes a particular feature that is different from TCP: the ITP information may be in locations other than those specified by a particular version of TCP. Appl. ’454 ¶ 80. Second, Petitioner’s argument is based on a narrow reading that is divorced from the rest of the specification describing the invention’s purpose and scope: communication and cooperation between nodes. See Pet. 74. The nodes must communicate and cooperate because TCP has various” slip op. at 10
- PTAB / AIA Trials › Other PTAB motions (exclude, strike, seal, additional discovery, rehearing)New argument disregardedDenied
“4 In an email to the Board on September 25, 2023, Petitioner requested authorization to file a four-page reply to Patent Owner’s Preliminary Response to address whether the claims fall within an exception of Gentry Gallery. Ex. 3001. Petitioner’s request was denied. Id. It may always be the case that a Petitioner disagrees with how Patent Owner characterizes the facts and law presented in the Petition. Our rules, however, provide for a Petitioner’s Reply only when good cause exists. 37 C.F.R. § 42.108(c). Petitioner failed to show good cause because the issues that Petitioner identified in its request could have been, but were not, addressed in the petition. See id.” slip op. at 13
§ 112 disclosurePatents in suitUS 10,986,217 - Google LLC v. Jenam Tech, LLCInstitution deniedPTAB · Dec 8, 2023 · IPR2023-00927 · APJ Jason M Repko · IPR · Institution
The Board denied institution because Morris was not prior art; the challenged claims were entitled to the February 27, 2010 priority date based on written-description support.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied
“To institute an inter partes review, we must determine “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). For the reasons discussed below, Petitioner has not shown a reasonable likelihood that it would prevail with respect to any claims challenged in the Petition. Thus, we deny institution of inter partes review.” slip op. at 2
- Disclosure Requirements (§112) › Written description (Ariad)Written description adequateEntitled to earlier dateDecided for patent owner
“The test for written description “requires an objective inquiry into the four corners of the specification from the perspective of a person of ordinary skill in the art.” Ariad Pharms., Inc. v. Eli Lilly & Co., 598 F.3d 1336, 1351 (Fed. Cir. 2010) (en banc). The specification must clearly allow persons of ordinary skill in the art to recognize that the inventor invented what is claimed and “reasonably” convey to those skilled in the art “that the inventor had possession of the claimed subject matter as of the filing date.” Id. The “level of detail required to satisfy the written description requirement varies depending on the nature and scope of the claims and on the complexity and predictability of the relevant technology.” Id.” slip op. at 9
- Obviousness (§103) › Graham factors (scope of art, differences, level of skill)Not reached
“We disagree that the challenged claims are not entitled to February 27, 2010. Thus, Morris is not prior art, and Petitioner has not shown a reasonable likelihood of prevailing on any ground. Our analysis follows.” slip op. at 7
- PTAB / AIA Trials › Other PTAB motions (exclude, strike, seal, additional discovery, rehearing)Denied
“4 In an email to the Board on September 25, 2023, Petitioner requested authorization to file a four-page reply to Patent Owner’s Preliminary Response to address whether the claims fall within an exception of Gentry Gallery. Ex. 3001. Petitioner’s request was denied. Id. It may always be the case that a Petitioner disagrees with how Patent Owner characterizes the facts and law presented in the Petition. Our rules, however, provide for a Petitioner’s Reply only when good cause exists. 37 C.F.R. § 42.108(c). Petitioner failed to show good cause because the issues that Petitioner identified in its request could have been, but were not, addressed in the petition. See id.” slip op. at 13
§ 103 obviousness§ 112 disclosurePatents in suitUS 10,986,217 - Google LLC v. Jenam Tech, LLCInstitution deniedPTAB · Dec 7, 2023 · IPR2023-00925 · APJ Jason M Repko · IPR · Institution
The Board denied institution because Morris was not prior art: claims 1 and 16 were entitled to the ’454 application’s priority date, so the obviousness challenge did not meet the institution threshold.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied
“To institute an inter partes review, we must determine “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). For the reasons discussed below, Petitioner has not shown a reasonable likelihood that it would prevail with respect to any claims challenged in the Petition. Thus, we deny institution of inter partes review.” slip op. at 2
- Disclosure Requirements (§112) › Written description (Ariad)Written description adequateEntitled to earlier dateDecided for patent owner
“We disagree for two principal reasons. First, the ’454 application explicitly describes a particular feature that is different from TCP: the ITP information may be in locations other than those specified by a particular version of TCP. Appl. ’454 ¶ 80. Second, Petitioner’s argument about the non-TCP features is based on a narrow reading of that limitation and is divorced from the rest of the specification describing the invention’s purpose and scope: communication and cooperation between nodes. See Pet. 70–71.” slip op. at 11
- Obviousness (§103) › Graham factors (scope of art, differences, level of skill)Not reached
“We disagree that the challenged claims are not entitled to February 27, 2010. Thus, Morris is not prior art, and Petitioner has not shown a reasonable likelihood of prevailing on any ground. Our analysis follows.” slip op. at 7
§ 103 obviousness§ 112 disclosurePatents in suitUS 11,050,855
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.