• Micron Technology, Inc. v. Yangtze Memory Technologies Company, Ltd.Some claims unpatentable
  PTAB · Jul 6, 2026 · IPR2025-00191 · APJ Michael T Cygan · IPR · Final written decision

  Claims 3, 8, 11, 12, and 19 are unpatentable under §103; Petitioner did not show claims 6, 9, 10, 13–18, and 20 unpatentable.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “at the critical time “would have had a Bachelor of Science degree in electrical engineering or a similar discipline, along with 2–3 years of professional experience working with (e.g., researching, designing, or teaching) monolithic 3D structures and NAND memory devices, or an equivalent level of skill, knowledge, and experience (e.g., an advanced degree may replace some of the professional experience).” Pet. 27 (citing Ex. 1003 ¶¶34–38). Petitioner further asserts that a POSITA “would have been aware of and generally knowledgeable about 3D NAND’s structure, how it is manufactured, and its component parts.” Id. Patent Owner does 5 Neither party presents evidence or arguments regarding objective evidence of non-obviousness. Pet. 100; PO. Resp. circuit design. PO Resp. 9–10 (citing Ex. 2021 ¶ 35). Neither Patent Owner nor Dr. Campbell considers the obviousness of the claims to turn on the precise definition of the level or ordinary skill in the art. PO Resp. 10; Ex. 2021 ¶ 35. 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 ’322 patent and the prior art of record.” slip op. at 7

  • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededDecided for petitioner

    “C. Claim Construction Neither party proposes any express claim construction. Pet. 27 (stating claims should receive their “plain and ordinary meaning”); PO Resp. 10 (stating that Petitioner’s challenges fail “under any reasonable construction”). In an inter partes review, we construe a patent claim “using the same claim construction standard that would be used to construe the claim in a civil action under 35 U.S.C. [§] 282(b).” 37 C.F.R. § 42.100(b). Under this standard, the words of a claim generally are given their “ordinary and customary meaning,” which is the meaning the term would have to a person of ordinary skill at the time of the invention, in the context of the entire patent including the specification. Phillips v. AWH Corp., 415 F.3d 1303, 1312–13 (Fed. Cir. 2005) (en banc). We determine no terms require express construction for purposes of this Decision.” slip op. at 8

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

    “We determine that such a configuration would be neither inoperable nor significantly undesirable. Dr. Campbell testified that he does not argue that this configuration would be inoperable. Ex. 1106, 74:12–17; Ex. 2021 ¶60. Dr. Lee testifies that this configuration is “consistent with Nishikawa[123]’s Figure 14B.” Ex. 1105 ¶ 13. Dr. Lee further testifies that this configuration would not necessarily require a larger footprint, but instead, “could simply replace the trenches, abutting the device edge.” Id. Dr. Campbell testified that if the circular TAC replaced the rectangular trench, “I don’t know what it would be or exactly where it would be,” and therefore, “I can’t say what the size of the red circle would have to be.” Ex. 1106, 83:19–84:3. Therefore, the record does not support finding a circular TAC to have a larger footprint. Absent a larger footprint, there is no evidence that the end-connected TAC would be undesirable.” slip op. at 15

  • Expert testimonyPetitioner expert creditedPatent owner expert discountedMixed

    “nor significantly undesirable. Dr. Campbell testified that he does not argue that this configuration would be inoperable. Ex. 1106, 74:12–17; Ex. 2021 ¶60. Dr. Lee testifies that this configuration is “consistent with Nishikawa[123]’s Figure 14B.” Ex. 1105 ¶ 13. Dr. Lee further testifies that this configuration would not necessarily require a larger footprint, but instead, “could simply replace the trenches, abutting the device edge.” Id. Dr. Campbell testified that if the circular TAC replaced the rectangular trench, “I don’t know what it would be or exactly where it would be,” and therefore, “I can’t say what the size of the red circle would have to be.” Ex. 1106, 83:19–84:3. Therefore, the record does not support finding a circular TAC to have a larger footprint. Absent a larger footprint, there is no evidence that the end-connected TAC would be undesirable.” slip op. at 15

  Patent outcomesUS 11,581,322 mixed
  Claim construction§ 103 obviousnesscites KSR · Graham
  Patents in suitUS 11,581,322
• Micron Technology, Inc. v. Yangtze Memory Technologies Company, Ltd.Some claims unpatentable
  PTAB · Oct 23, 2025 · IPR2024-00790 · APJ Jo-Anne M Kokoski · IPR · Final written decision

  Claims 1–3 are unpatentable as obvious over Kim; claims 4 and 5 were not shown unpatentable over the asserted grounds.

  RulingsFinal written decision

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

    “SuperGuide, 358 F.3d at 875 (“We review the patent’s written description and drawings to confirm that the patentee’s own use of the disputed term is consistent with the meaning given to it by the court.”). The ’031 patent teaches that dielectric pairs of different tiers are etched to form staircases extending along the x-y plane. Ex. 1001, 13:27–28. As described above (§ I.D, supra), dielectric filling structure 311 is formed by depositing a dielectric filling material to fill the space remaining after portions of dielectric stack 203 are removed to form staircase structure 303. Id. at 13:36–41; see also id. at 22:63–65 (“Memory structure 1200 can be formed by forming dielectric filling structure 1201 to fill the space formed by the removal of portions of dielectric stack 1003.”) The ’031 patent then teaches that excess dielectric filling material overlying the topmost surface of staircase structure 303 is removed using a suitable planarization method. Id. at 13:41–44; see also 22:67–23:5 (performing a planarization process to remove excess dielectric filling structure 1201 over the top surface of memory structure 1200). According to the ’031 patent, the portion of the deposited dielectric filling material that remains “over staircase structure 303 and isolation layer 109” forms “dielectric filling structure 311 that surrounds staircase structure 303.” Id. at 13:44–48 (emphasis added); see also id. at 1:56–58 (stating in “some embodiments, the memory device also includes a filling structure surrounding the multiple-stack staircase structure”). structure is etched along the x-, y-, and z-axes, and the dielectric filling structure fills the spaces in the x-, y-, and z-directions created when the staircase structure is etched. Because the excess portion of the dielectric filling structure overlying the top of the staircase structure is removed, what remains is dielectric filling structure in the spaces around the staircase structure in the x-, y-, and z-planes. In this way, the ’031 patent teaches that the dielectric filling structure surrounds, i.e., is all around or encircles, the staircase structure.” slip op. at 11

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “(“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. 22–23. Petitioner further contends 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. at 23 (citing Ex. 1003 ¶¶ 41–44). Patent Owner states that it does not object to the definition of a POSITA proffered by Petitioner. PO Resp. 13–14 (citing Pet. 22). In the Institution Decision, we adopted the assessment offered by Petitioner. Dec. 7. Because Petitioner’s definition of the level of skill in the art is consistent with the ’031 patent and the asserted prior art, we maintain it for purposes of this Final Written Decision. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir 2001).” slip op. at 7

  • Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation not foundMixed

    “Dr. Banerjee adequately explains why a POSITA would have been motivated to make dummy structures DS with a conductive core as Petitioner proposes. In an obviousness analysis, some kind of reason must be shown as to why a POSITA would have thought of combining or modifying the prior art to achieve the patented invention. See Innogenetics, N.V. v. Abbott Labs., 512 F.3d 1363, 1374 (Fed. Cir. 2008). Here, Petitioner offers only the general proposition that pillar support structures comprising electrically conductive material were known in the art, but this does not provide a reason why a POSITA would have been motivated to modify Kim’s dummy structures. Pet. 55–56; Ex. 1003 ¶¶ 156–157. Petitioner’s arguments and Dr. Banerjee’s testimony with respect to the modification of Kim leaves an analytical gap that does not apprise us of why a POSITA would have modified Kim’s dummy structures to include a conductive core as the pillar-support material recited in claim 4. Instead, Petitioner attempts to imbue a POSITA with the knowledge of the claimed invention, when no prior art reference, references of record, or other evidence conveys or suggests that knowledge. Petitioner’s argument that a POSITA would have modified Kim in this way appears to be premised on Petitioner’s knowledge of the ’031 patent disclosure. This is improper hindsight reasoning. Petitioner needed to explain sufficiently what invention to consider modifying Kim’s dummy structures to include a conductive core. Petitioner fails to provide such an explanation. See W.L. Gore & Assoc., Inc. v. Garlock, Inc., 721 F.2d 1540, 1553 (Fed. Cir. 1983) (In an obviousness analysis, we must “cast the mind back to the time the invention was made” and “occupy the mind of one skilled in the art who is presented only with the references, and who is normally guided by the thenaccepted wisdom in the art.”).” slip op. at 23

  • Obviousness (§103) › Motivation to combine / reasonable expectation of success › HindsightNot shown unpatentableDecided for patent owner

    “Dr. Banerjee adequately explains why a POSITA would have been motivated to make dummy structures DS with a conductive core as Petitioner proposes. In an obviousness analysis, some kind of reason must be shown as to why a POSITA would have thought of combining or modifying the prior art to achieve the patented invention. See Innogenetics, N.V. v. Abbott Labs., 512 F.3d 1363, 1374 (Fed. Cir. 2008). Here, Petitioner offers only the general proposition that pillar support structures comprising electrically conductive material were known in the art, but this does not provide a reason why a POSITA would have been motivated to modify Kim’s dummy structures. Pet. 55–56; Ex. 1003 ¶¶ 156–157. Petitioner’s arguments and Dr. Banerjee’s testimony with respect to the modification of Kim leaves an analytical gap that does not apprise us of why a POSITA would have modified Kim’s dummy structures to include a conductive core as the pillar-support material recited in claim 4. Instead, Petitioner attempts to imbue a POSITA with the knowledge of the claimed invention, when no prior art reference, references of record, or other evidence conveys or suggests that knowledge. Petitioner’s argument that a POSITA would have modified Kim in this way appears to be premised on Petitioner’s knowledge of the ’031 patent disclosure. This is improper hindsight reasoning. Petitioner needed to explain sufficiently what invention to consider modifying Kim’s dummy structures to include a conductive core. Petitioner fails to provide such an explanation. See W.L. Gore & Assoc., Inc. v. Garlock, Inc., 721 F.2d 1540, 1553 (Fed. Cir. 1983) (In an obviousness analysis, we must “cast the mind back to the time the invention was made” and “occupy the mind of one skilled in the art who is presented only with the references, and who is normally guided by the thenaccepted wisdom in the art.”).” slip op. at 23

  Patent outcomesUS 10,868,031 mixed
  Claim construction§ 103 obviousnesscites Phillips
  Patents in suitUS 10,868,031
• Micron Technology, Inc. v. Yangtze Memory Technologies Company, Ltd.Some claims unpatentable
  PTAB · Oct 22, 2025 · IPR2024-00794 · APJ Michael T Cygan · IPR · Final written decision

  Claims 1 and 6 are unpatentable over Park; claims 2–5 and 7–11 were not shown unpatentable on the asserted grounds.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “B. Level of Ordinary Skill in the Art Petitioner asserts that a person of ordinary skill in the art (“POSITA”) at the critical time “would have had a bachelor’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) NAND flash memory devices, or an equivalent level of skill, knowledge, and experience (e.g., an advanced degree may replace some of the professional experience).” Pet. 19 (citing Ex. 1003 ¶¶ 36–37). 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 object to this assessment, arguing that its claims are valid regardless of the precise definition. PO 3 Neither party presents evidence or arguments regarding objective evidence of non-obviousness. skill, as it appears to be consistent with the specification of the ’623 patent and the prior art of record.” slip op. at 5

  • Expert testimonyPetitioner expert discountedMixed

    “the Petition, Petitioner’s approach to Shibata’s drive circuit and Park’s dummy channel/open region teachings results in a deficiency in its showing of reasonable expectation of success for its expressed combination of extending Park’s insulative trenches to replace some of its common source lines. Petitioner relies solely on the fact that the references are capable of performing the relied-upon functions or could possess the relied-upon structure. See, e.g., Pet. Reply 19–20 (stating, “If Shibata accommodates this type of trench . . . there is no reason Park cannot as well,” and “Park itself already presents a variety of ways to minimize any etching problem that may be encountered when using wet etching”). But Park does not describe its dummy channel or open region teachings as generally applicable to all of its embodiments. And Petitioner needs to show a reason why the application of Shibata would be reasonably expected to have been successfully applied in Park, not merely state that there is “no reason” to expect that it would not be successful. See DSS Tech. Mgmt., Inc. v. Apple Inc., 885 F.3d 1367, 1377 (Fed. Cir. 2018) (finding that even where two structures have “the same physical structure,” applying the teachings of one structure to the other requires “additional, reasoned analysis.”). The knowledge of one skilled in the art cannot bridge this gap, because these are inventive features of Park and Shibata. Furthermore, Petitioner also has not sufficiently explained, for any of its proposed augmentations, how metal gate deposition would occur sufficiently in the most remote regions of the long, parallel insulating layers in Petitioner’s Park-Shibata combination of such regions to avoid the risk of incomplete gate electrode layers in the final memory device that Patent Owner argues would result in a significant trade-off in memory device accuracy, and device scalability. PO Resp. 68 (citing Ex. 2010 ¶ 145). For example, Dr. Lee addresses only etching issues, not deposition issues. Ex. 1025, ¶¶ 32–47.” slip op. at 46

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

    “We agree with Petitioner. As pointed out by Patent Owner, the “trenches formed in the BSG” language of claim 1 reflects specific description of the gate-first method of manufacturing, but not the gate-last method of manufacturing. Ex. 1001, 7:17–19 (“referring to Fig. 1A, one or more first dielectric trenches . . . are formed in the one or more BSGs”). However, as Petitioner points out, the claims are to a memory “device,” not to a method of manufacturing or a device produced by specific manufacturing steps. Pet. Reply 1. During prosecution of the application that matured into the ’623 patent, the Examiner determined that the device of claim 1 was distinct from a separately claimed method of manufacturing and The Examiner’s requirement stated that the memory device of claim 1 is not limited by the disclosed process of manufacture because “the process claims require . . . deposition steps of polysilicon whereas the product claims do not require any polysilicon.” Id. Applicant agreed “without traverse” with the Examiner’s determination and selected to pursue only the “device” claims. Id. at 596 (“Applicant elects, without traverse, Invention I, Claims 1–11, drawn to a device”).4 The distinctiveness is also supported by the discussion in the ’623 patent of “formed in the BSG” that describes its device separately from its method of formation. The ’623 patent describes that “[i]n the disclosed memory device, one or more first dielectric trenches are formed in the BSG and extend in a length direction of the substrate to separate the BSG into a plurality of sub-BSGs.” Ex. 1001, 2:25–28. This description precedes, and is separate from, its description of an aspect of a process for manufacturing a memory device in which the BSG layer is formed and then “dielectric trenches are formed” that may “pass through the BSG layer” so that the “BSG layer is separated by the one or more first dielectric trenches into a plurality of sub-BSG layers.” Id. at 3:30–45. The description of the device having trenches formed in the BSG, which is not limited to a particular manufacturing process, further supports Petitioner’s contention that the “formed in the BSG” language is not limited to a particular manufacturing embodiment.” slip op. at 7

  • Claim Construction › Intrinsic evidence (Phillips canons) › Specification disavowal / 'present invention' languageTerm construed board ownDecided for patent owner

    “We do not agree that such arguments support Patent Owner’s conclusion. Patent Owner acknowledges that two portions of a BSG that are connected at a small opening are not separated because both portions remain electrically connected to each other. Id. at 17 (stating, “common source regions 52a is merely in the middle of a single sub-BSG 2 (‘SUB-BLK2’) and does not divide it into further sub-BSGs because there is an H-cut 72 that connects the two sides of the common source region such that both regions are part of the same sub-BSG”) (citing Ex. 1001, 9:15–19, 9:41–44) (emphasis omitted); Ex. 1026, 34:4–15, 41:23–42:16 (Dr. Kuhn attesting that common source regions may isolate adjacent BSGs). Patent Owner considers other portions of the BSG to be separated into sub-BSGs because there is no such connection between the sub-BSG portions. Id. at 17–18 (annotating Ex. 1001, Fig. 1B). Under such reasoning, the addition of a trench closing a gap between two neighboring BSG portions, thereby breaking the electrical connection therebetween, would “separate” the two BSG portions into further sub-BSGs. In its obviousness assertions, Petitioner argues for such an interpretation of the claim. See Pet. Reply 10 (“Park’s layers 111 electrically separate its BSG”). Based on the above, we determine that the phrase “dielectric trenches formed in the BSG and extending in a length direction of the substrate to perform electrical separation between sub-BSGs, but does not require that the trenches act alone, extending from one end of the device to the other across the entire BSG. Similarly, the trenches need not have any particular length, and need only to have some length that performs that separation.” slip op. at 13

  Patent outcomesUS 10,950,623 mixed
  Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 10,950,623
• Allstate Insurance Company v. Atos, LLCSome claims unpatentable
  PTAB · Mar 7, 2023 · IPR2021-01449 · APJ Julia Heaney · IPR · Final written decision

  Claim 5 is unpatentable as anticipated by Kim; claims 1–4 were not shown unpatentable under the asserted obviousness grounds.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Having considered the parties’ arguments and evidence, we adopt the level of ordinary skill in the art proposed by Petitioner, because it is consistent with the disclosures of the ’174 patent and the prior art of record. We note, however, that neither party contends that any issue in this case turns on the differences between the parties’ definitions of one of ordinary skill in the art.” slip op. at 10

  • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)Term construed petitioner constructionDecided for petitioner

    “Having reviewed the parties’ arguments and evidence, we determine that Petitioner’s proposed construction of “rotation vector” is consistent with the ’174 patent’s usage of the term “rotation vector” (or “vector of rotation”). See Ex. 1001, 1:54–2:11. Dr. Kanellakopoulos’s opinion supports that “rotation vector” would be understood by a person of ordinary skill in the art to describe the motion of a body that is rotating around a point. As to the other aspects of Patent Owner’s proposed construction, describing the characteristics of magnitude and direction, we determine that those attributes are not necessary to interpreting how a skilled artisan would understand “rotation vector” in light of the claim language and specification. See Tr. 47:26–48:7 (in Patent Owner’s proposed construction of “rotation vector,” “the magnitude requirement is not particularly important”). We address the parties’ arguments as to differences between a rotation vector and angular momentum vector in Section II.D.2 below, because they underlie Petitioner’s challenges involving Kleppner.” slip op. at 14

  • Claim Construction › Intrinsic evidence (Phillips canons) › Lexicography (patentee as own lexicographer)Term construed patent owner constructionDecided for patent owner

    “Having considered the parties’ positions as to construction of the term “movement vector” and applicability of the definition of “movement vector” set forth in the ’174 patent specification (Ex. 1001, 2:29–31), we construe the term “movement vector” to mean “a vector derived from the cross product of the centrifugal force vector and the rotation vector.” We adopt the definition set forth in the ’174 specification because we determine patentee acted as its own lexicographer. Cont’l Cirs. LLC v. Intel Corp., 915 F.3d 788, 796 (Fed. Cir. 2019) (citing Phillips, 415 F.3d at 1316) (“When the patentee acts as its own lexicographer, that definition governs.”). We agree with Petitioner that the words “while a vehicle is turning” would be superfluous in the construction, because the step of “detecting a movement vector during the turn” already recites that the vehicle is turning. Apple, Inc. v. Ameranth, 842 F.3d 1229, 1237 (Fed. Cir. 2016) (“Construing a claim term to include features of that term already recited in the claims would make those expressly recited features redundant.”)” slip op. at 16

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

    “We decline to adopt Patent Owner’s construction because it improperly reads into claim 5 a requirement that the specification and claim language do not support. The specification passages relied on by Patent Owner do not expressly state that a vehicle independent state must be determined while the device is inside a vehicle, and contrary to Patent Owner’s argument, they also do not necessarily imply that. For example, the descriptions of “vehicle independent movement” and “vehicle independent event” in the specification (see Ex. 1001, 1:16, 42) refer to “phone falling to the ground.” “Falling to the ground” implies that the phone may be outside a vehicle, not inside. Further, the specification’s reference to detecting a vehicle dependent state “while also” recognizing a vehicle independent event does not necessarily imply that the vehicle dependent state and vehicle independent event are being detected simultaneously, as Patent Owner argues. In the language of claim 5, a “vehicle independent state” is recited in the determining step (step c), and the requirement that the portable device is located “inside a vehicle” relates to creation of an operation indicator, as part of the detecting step (step b). Patent Owner does not dispute this, and agrees that a portable device “not in the vehicle” can satisfy the determining step (step c). Tr. 73:5–8. Patent Owner, however, argues step c’s recitation that a “vehicle independent state” is based on step b’s “predetermined criteria” creates a link between “vehicle independent state” and step b, and thus an “express requirement” in step c that the device is located inside the vehicle. See Tr. 73:8–26, 76:1–3. We decline to read this requirement into the claim language. Although the claim language states that determining a “vehicle independent state” is based on “predetermined criteria,” and step b describes comparing “predetermined criteria” to an “operation indicator” that is created when the device is inside a vehicle, it does not limit the step of determining a vehicle independent state to a time when the portable device is inside a vehicle. Accordingly, we construe “vehicle independent state” to mean a state triggered when the portable device is moved independently of the movement of the vehicle.” slip op. at 23

  Patent outcomesUS 9,846,174 mixed
  Claim construction§ 102 anticipation§ 103 obviousnesscites KSR · Graham
  Patents in suitUS 9,846,174
• Sunspec Alliance v. Tigo Energy, Inc.Some claims unpatentable
  PTAB · Jan 26, 2023 · IPR2021-01287 · APJ Kristina M Kalan · IPR · Final written decision

  Claims 12–13 are unpatentable; claims 14–16 are not shown unpatentable because the asserted grounds fail to establish the required predetermined number of heartbeat skips or sensor-triggered skips.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “contention that a person of ordinary skill in the art “would have had a bachelor’s degree or similar degree in electrical engineering and one year of experience in the design of solar power systems, power control systems, and/or power safety systems” or “could have also obtained similar knowledge and experience through other means.” Dec. 6. Patent Owner does not appear to dispute this definition. See generally PO Resp; see also id. at 51 (employing Petitioner’s definition of a person of ordinary skill in the art in discussing Mr. Dunton’s testimony). In its Reply, Petitioner argues that “Patent Owner does not challenge but adopts Petitioner’s proposed level of skill for a POSITA for the relevant time period.” Reply 1 (citing Ex. 2003 ¶ 28; Ex. 1030, 119:25–120:14). Neither party argues that the outcome of this case would differ based on our adoption of any particular definition of one of ordinary skill in the art. Accordingly, we adopt Petitioner’s definition, because it is consistent with the cited prior art. We further note that the prior art itself demonstrates the level of skill in the art at the time of the invention. Cf. Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001) (explaining that “specific findings on the level of skill in the art . . . [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 9

  • Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed board ownDecided for patent owner

    “We interpret the term “heartbeat signals” as “periodic signals.” The term “heartbeat” appears only once in the in the specification outside of the claims: “the ‘heartbeats’ of the ping are set at a high rate, such as 100 or even 1000 per second.” Ex. 1001, 18:7–13. The disclosure of “the heartbeats” having a “rate” defined in “per second” terms indicates that they are periodic, as is generally recognized for heartbeats, i.e. human heartbeats. The term “heartbeat signals” appears in the challenged claims in conjunction with the detection of an anomaly (claim 12, “wherein the controller detects an anomaly in heartbeat signals from the remote unit”) and in conjunction with “skips” (claim 13, “wherein the anomaly includes skips of heartbeat signals”; claim 14, “when the anomaly includes a predetermined number of skips of the heartbeat signals”; claim 15, “when skips of the heartbeat signals are less than the predetermined number”). Accordingly, the heartbeat signals allow for the detection of an anomaly therein, indicating that they are typically predictable, and for the detection of skips of heartbeat signals, indicating that they are periodic. In view of the specification and the claims, and the parties’ arguments, we find that the plain and ordinary meaning of “heartbeat signals” is “periodic signals.”” slip op. at 12

  • Claim Construction › Intrinsic evidence (Phillips canons) › Lexicography (patentee as own lexicographer)Term construed patent owner constructionDecided for patent owner

    “Because patentee has acted as its own lexicographer, and because the ’321 patent specification is incorporated by reference into the ’770 patent specification (Ex. 1001, 1:7–37; Tr. 9:10–22), we adopt the construction: “Skips refers to the event of missing a communication or pulse.” Ex. 2005, 9:36–37. Cont’l Cirs. LLC v. Intel Corp., 915 F.3d 788, 796 (Fed. Cir. 2019) (citing Phillips, 415 F.3d at 1316) (“When the patentee acts as its own lexicographer, that definition governs.”).” slip op. at 13

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

    “We agree with Patent Owner that the preamble of claim 12 is limiting. The body of claim 12 recites “photovoltaic panel” and thus refers back to the preamble, and other challenged claims use the term “photovoltaic panel” in the non-preamble portions of the claims. See, e.g., Ex. 1001, 20:51, 20:58, 20:67, 21:5, 21:10. Aside from the preamble issue, the parties do not dispute the meaning of “photovoltaic panel.” Accordingly, we need not expressly construe the term “photovoltaic panel” for the purposes of this Decision.” slip op. at 14

  Patent outcomesUS 10,256,770 mixed
  Claim construction§ 102 anticipation§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 10,256,770
• Shenzen Chic Electrics Co., Ltd. v. Pilot, Inc.Some claims unpatentable
  PTAB · Jan 9, 2023 · IPR2021-01232 · APJ Jeffrey W Abraham · IPR · Final written decision

  Claims 1 and 4–20 are unpatentable as obvious; claim 3 was not shown unpatentable because Petitioner presented no evidence under the adopted construction.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “of battery charging systems.” Pet. 8. Patent Owner states that it adopts this definition for purposes of its Response. PO Resp. 4. In light of the record before us, we adopt Petitioner’s proposal regarding the level of ordinary skill in the art. Based on our review of the ’653 patent and the prior art of record, we determine that the definition offered by Petitioner comports with the qualifications a person would have needed to understand and implement the teachings of the ’653 patent and the prior art. 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)). It is also consistent with the level of skill in the art adopted in the 777 IPR, which also involves the ’653 patent. IPR2021-00777, Paper 7 at 6–7.” slip op. at 9

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

    “construction “contradicts the technical disclosure of the ’653 patent” and that “[t]he proper construction of this term is ‘switching circuit under control of the microcontroller that selectively conducts power supply or power outage for the load.’” Pet. Suppl. Br. 3.10 In particular, Petitioner contends that claim 3, through claim 1, only recites one connection between the microcontroller and the first battery, such that the connections in claim 3 do not allow the power supply from the first battery to pass through the microcontroller to the load. Pet. Suppl. Br. 4–5. Claim 1, however, recites “an automobile charger, comprising . . .” which is an open-ended term, meaning that claim 1 is not limited to only the connections expressly recited therein. Petitioner’s arguments do not address this open-ended aspect of the plain language of the claims. Petitioner also argues that the language of claim 3 is consistent with its construction because claim 3 “places the switching circuit between the second pole of the first battery . . . and the second lead of the load.” Pet. Suppl. Br. 5. Although Petitioner’s interpretation may be consistent with the language in claim 3, we discern nothing in claim 3 that expressly limits the placement of the switching circuit, especially considering the open-ended “comprising” language used in claims 1 and 3.” slip op. at 11

  • Strike new argumentNew argument consideredDecided for petitioner

    “Specifically, Dr. Kirtley testifies that a person of ordinary skill in the art would have understood that connections between components depicted as single lines in Yu’s figures “may comprise multiple connections, such as multiple signal connections, and common power and ground connections for sensors and microprocessors.” Ex. 1020 ¶ 84 (citing Ex. 1021 (US 7,973,534 B2)). We credit Dr. Kirtley’s testimony, as Patent Owner does not dispute the substance of Dr. Kirtley’s testimony or the supporting exhibit. Instead, Patent Owner argues that Petitioner is attempting to “sneak in new evidence that is improper in a reply” and create a new ground. Sur-reply 13–15. We disagree, as Petitioner and Dr. Kirtley offer this evidence to demonstrate what a person of ordinary skill in the art would have understood in considering Yu—not as a new ground. Moreover, Petitioner properly offered this exhibit and Dr. Kirtley’s testimony in response to Patent Owner’s arguments that claim 1 requires negative side switching, which Yu does not disclose. In its Reply, Petitioner is entitled to “respond to arguments raised in the corresponding . . . patent owner response.” 37 C.F.R. § 42.23(b). A party also may submit rebuttal evidence in support of its reply. See Belden Inc. v. Berk-Tek LLC, 805 F.3d 1064, 1077–78 (Fed. Cir. 2015).” slip op. at 26

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

    “After considering the parties’ arguments and evidence, we find Petitioner has established, by a preponderance of the evidence, that claim 4 is unpatentable as obvious in view of Yu and Thomason. As discussed above, we disagree with Patent Owner’s arguments regarding negative pole switching, and find that Petitioner presents persuasive evidence that Yu teaches or suggests the limitations of claim 1. Petitioner also presents undisputed evidence that Yu and Thomason teach or suggest the additional limitations in claim 4. Pet. 52–54. Additionally, Petitioner directs us to a disclosure in Thomason itself regarding a protection mechanism to prevent the jump starter from self-destructing, and presents testimony from Dr. Kirtley that a person of ordinary skill in the art would have considered Thomason’s teaching in order to avoid damage to Yu’s internal battery, and would have been able to implement Thomason’s teachings. Pet. 52–54; Reply 20–21; Ex. 1004 ¶¶ 189–192. Patent Owner and Mr. McAlexander do not challenge or otherwise refute this testimony. PO Resp. 9–10. Thus, contrary to Patent Owner’s assertions, Petitioner does direct us to evidence in the asserted prior-art references themselves that provide a reason to combine their teachings, and does not rely solely on conclusory statements regarding the similarities of Yu and Thomason to support its obviousness challenge. In view of Petitioner’s persuasive evidence demonstrating where the prior-art references teach or suggest each limitation in the challenged claims, and explaining why a person of ordinary skill in the art would have had reason to combine the prior-art references with a reasonable expectation of success, we find Petitioner has established, by a preponderance of the evidence, that claim 4 is unpatentable as obvious in view of Yu and Thomason.” slip op. at 33

  Patent outcomesUS 10,046,653 mixed
  Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 10,046,653
• Nanofiber Solutions, LLC v. Acera Surgical, Inc.Some claims unpatentable
  PTAB · Dec 13, 2022 · IPR2021-01016 · APJ Christopher L Crumbley · IPR · Final written decision

  Claims 1, 2, 4–7, and 13 are unpatentable: claims 1, 2, 4, 5, and 13 as anticipated by Johnson, and claims 6 and 7 as obvious over Johnson and Johnson–Liu, respectively.

  RulingsFinal written decision

  • Skill levelOther

    “Petitioner contends that: A person of ordinary skill in the art (“POSITA”) at the time of filing the ‘228 Patent would have been a person having a bachelor's degree in science or engineering, for example in the fields of chemistry, chemical engineering, or biomedical engineering, with undergraduate research experience, coupled with at least three years of industry experience, that linked the fabrication of fibrous polymeric materials to performance requirements for scaffolds for the promotion of proliferation of biological cells and the growth and/or reconstruction of biological tissues. Pet. 11–12 (citing Ex. 1002 ¶¶ 112–116). In response, Patent Owner notes that all challenged claims recite electrospun fibers but that Petitioner’s proposed level of skill “requires (1) no coursework, training or experience with electrospinning and (2) improperly focuses on scaffolds for the promotion of proliferation of biological cells and the growth and/or reconstruction of biological tissues.” PO Resp. 7 (citing Ex. 2001, ¶¶ 38–39). But Patent Owner then concedes that this “difference is immaterial to deciding the issues raised by the Petition.” Id. at 8.” slip op. at 9

  • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededOther

    “construe claims “using the same claim construction standard that would be used to construe the claim in a civil action under 35 U.S.C. 282(b), including construing the claim in accordance with the ordinary and 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); see Phillips v. AWH Corp., 415 F.3d 1303 (Fed. Cir. 2005) (en banc). Furthermore, we expressly construe the claims only to the extent necessary to resolve the parties’ dispute. See Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co. Ltd., 868 F.3d 1013, 1017 (Fed. Cir. 2017) (“[W]e 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))). The parties agree that the terms of the challenged claims should be given their “plain and ordinary meaning” and that no express claim construction is necessary to address Petitioner’s challenges. Pet. 12; PO Resp. 6. We agree that no claim terms require express construction for purposes of resolving the dispute between the parties.” slip op. at 10

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

    “Upon review, we are unpersuaded that Petitioner has improperly mixed and matched disclosures from Johnson to arrive at an anticipatory reference. Patent Owner is correct that Petitioner primarily relies on Example 1 as evidence for the method by which its scaffold is made. But the disclosure found in paragraph 98 is not a “distinct” teaching of the type described in Net MoneyIN; rather, it is a general description of the structures that may be created by Johnson’s method: “A scaffold may comprise any number of layers, including about 1 layer, about 2 layers, about 3 layers, about 4 layers, about 5 layers, and so on.” Ex. 1009 ¶ 98. Patent Owner has not directed us to anything in the disclosure of Johnson that indicates that this is a “distinct” teaching or embodiment, instead of a general description of the types of scaffolds that Johnson encompasses. We see no reason why the general disclosures regarding Johnson’s scaffolds should be limited to specific embodiments, or precluded from applying to the method of Example 1.” slip op. at 14

  • Novelty / Anticipation (§102) › Anticipation standard (single reference, every element) › Inherent disclosureNot shown unpatentableNot shown unpatentable

    “We are unconvinced by Petitioner’s arguments and evidence. While we recognize that the range of claim 3 is very broad, and it is possible that scaffolds having fiber diameters as set forth in Johnson could have a mean pore size falling within the range, inherency “may not be established by probabilities or possibilities.” Par Pharm., Inc. v. Twi Pharms., Inc., 773 F.3d 1186, 1196 (Fed. Cir. 2014). Nor does Petitioner sufficiently explain why a person of ordinary skill in the art would have understood the process of Example 1 to necessarily result in the claimed mean pore size. We are also persuaded by Patent Owner’s argument that Boland 2005’s disclosure of a fiber diameter similar to Johnson’s that nevertheless falls outside the claimed mean pore size range. We note that Petitioner never addresses Boland 2005 in its Reply. 4. Conclusion as to Anticipation For these reasons, we find that Petitioner has met its burden of showing that claims 1, 2, 4, 5, and 13 are anticipated by Johnson, but has failed to meet its burden as to claim 3.” slip op. at 18

  Patent outcomesUS 10,632,228 mixed
  Claim construction§ 102 anticipation§ 103 obviousnesscites Phillips · Graham
  Patents in suitUS 10,632,228
• The Noco Company, Inc. v. Pilot, Inc.Some claims unpatentable
  PTAB · Oct 3, 2022 · IPR2021-00777 · APJ Jeffrey W Abraham · IPR · Final written decision

  Claims 1, 4–9, 11–18, and 20 are unpatentable; claim 3 was not shown unpatentable, because the adopted construction foreclosed the asserted obviousness ground.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “B. Level of Ordinary Skill in the Art Petitioner asserts that a person of ordinary skill in the art “would have had an undergraduate degree in electrical engineering (or equivalent subject) together with two or three years of experience in [the] automotive electrical systems industry.” Pet. 11–12 (citing Ex. 1008 ¶ 13). Patent Owner does not challenge Petitioner’s definition or offer its own. Mr. McAlexander indicated that he adopted Petitioner’s definition for purposes of his declaration. Ex. 2005 ¶ 16. In light of the record before us, we adopt Petitioner’s proposal regarding the level of ordinary skill in the art. Based on our review of the ’653 patent and the prior art of record, we determine that the definition offered by Petitioner comports with the qualifications a person would have needed to understand and implement the teachings of the ’653 patent and the prior art. 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 9

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

    “After considering the parties’ arguments and evidence, we adopt Petitioner’s proposed construction of the phrase “the switching circuit conducts power supply or power outage for the load through the microcontroller.” Petitioner’s construction is consistent with the plain language of the claim, and comports with the Federal Circuit’s decision in Chef America. Ex. 1001, 6:13–14; Chef Am., 358 F.3d at 1373–74 (holding that courts may not redraft claims to make them operable or sustain their validity, and construing the claims “based on the patentee’s version of the claim as he himself drafted it”). Additionally, the Specification of the ’653 patent states that “the automobile start control module conducts the power supply or power outage for the load module through the microcontroller.” Ex. 1001, 1:61–65. Furthermore, Patent Owner does not challenge Petitioner’s arguments or evidence, or present a competing construction. In view of this, we construe the phrase “the switching circuit conducts power supply or power outage for the load through the microcontroller” to mean “[t]he power for charging the load passes through the microcontroller.” Pet. 15; Reply 3–6.” slip op. at 11

  • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededOther

    “We determine that we do not need to expressly construe any other terms for purposes of this Decision. See Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 868 F.3d 1013, 1017 (Fed. Cir. 2017) (citing Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999) (“[O]nly those terms need be construed that are in controversy, and only to the extent necessary to resolve the controversy.”)).” slip op. at 13

  • Expert testimonyPetitioner expert creditedDecided for petitioner

    “Ex. 1008 ¶ 12 (under the heading “Basis for My Opinion”). In addition to this general statement, Dr. Kattamis also cites to exhibits in specific paragraphs of the Kattamis Declaration to support the statements made therein. See, e.g., Ex. 1008 ¶ 18 (citing Ex. 1013), ¶ 22 (citing Ex. 1014), ¶¶ 63–68 (citing Krieger and Richardson), ¶¶ 70–74 (citing Baxter and Krieger), ¶¶ 76–79 (citing Richardson and George). In view of this, we consider Dr. Kattamis to have provided a sufficient disclosure regarding the basis for his opinions to at least avoid a determination that the Kattamis Declaration, in its entirety, is entitled to little or no weight. The fact that Dr. Kattamis, in preparing the Kattamis Declaration, re- used material he had previously written for an earlier proceeding involving a different patent does not justify a different outcome. To the extent Dr. Kattamis used previously prepared material in the Kattamis Declaration, he indicates that he “reviewed all of these passages in detail and confirmed that they were all still accurate and suitable for inclusion in his declaration in the current proceeding.” Reply 8; Ex. 1016 ¶ 6. Additionally, as Patent Owner demonstrates, Dr. Kattamis supplemented the re-used material by adding, where appropriate and necessary, language directed to the facts of this proceeding and specific citations to exhibits in this proceeding. See PO Resp. 8–9 (showing in redline the additions Dr. Kattamis included in the Kattamis Declaration).” slip op. at 17

  Patent outcomesUS 10,046,653 mixed
  Claim construction§ 102 anticipation§ 103 obviousnesscites Phillips · KSR
  Patents in suitUS 10,046,653
• Intel Corporation v. VLSI Technology LLCSome claims unpatentable
  PTAB · Jan 12, 2021 · IPR2019-01195 · APJ Minn Chung · IPR · Final written decision

  Claims 13 and 14 are unpatentable as anticipated by Kim; claims 17, 18, and 20 were not shown unpatentable over Kim and Lee because the proposed combination was inadequately explained.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “’026 patent would have had a Master’s degree in Electrical Engineering or Computer Engineering, plus at least two years of experience in integrated circuit design, or alternatively a Bachelor’s degree in one of those fields plus at least four years of experience in integrated circuit design. Pet. 16 (citing Ex. 1102 ¶ 49). In our Institution Decision, we found Petitioner’s proposal consistent with the level of ordinary skill in the art reflected by the prior art of record, see Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001); In re GPAC Inc., 57 F.3d 1573, 1579 (Fed. Cir. 1995); In re Oelrich, 579 F.2d 86, 91 (CCPA 1978), and, therefore, preliminarily adopted Petitioner’s unopposed position as to the level of ordinary skill in the art. Inst. Dec. 15. Neither Patent Owner, in its Response, nor Dr. Annavaram, in his declaration, proposes a level of ordinary skill in the art. Instead, Patent Owner states that “Patent Owner applies Petitioner’s stated skill level for this response” (PO Resp. 26), and Dr. Annavaram similarly states that “[f]or the purpose of this declaration, I adopt Dr. Harris’ definition of a [person of ordinary skill in the art]” (Ex. 2009 ¶ 24). Nothing in the full record persuades us that our preliminary finding as to the level of ordinary skill in the art was incorrect. Based on the complete record, because our preliminary finding is consistent with the level of ordinary skill in the art reflected by the prior art of record, we maintain and reaffirm that one of ordinary skill in the art at the time of the invention would have had a Master’s degree in Electrical Engineering or Computer Engineering, plus at least two years of experience in integrated circuit design, or alternatively a Bachelor’s degree in one of those fields plus at least four years of experience in integrated circuit design. Inst. Dec. 15; see Pet. 16 (citing Ex. 1102 ¶ 49).” slip op. at 10

  • Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITAPlain and ordinary meaningDecided for petitioner

    “To the extent Patent Owner argues that these particularized selection clauses recited in different claims must have the same or similar meaning because they all use the word “selecting” (see PO Resp. 28–29), we disagree with Patent Owner. See IGT v. Bally Gaming Int’l, Inc., 659 F.3d 1109, 1117 (Fed. Cir. 2011) (“We caution that claim language must be construed in the context of the claim in which it appears. Extracting a single word from a claim divorced from the surrounding limitations can lead construction astray. Claim language must be construed in the claim in which it appears.” (emphasis added)). The selection clauses recited in these claims are plainly different on the face of the claims when considering the material differences in the claim language set forth above. According the same meaning to the limitations that recite “select . . . based on” indicators, “select . . . when” certain conditions are met, and “select . . . out of a group” of values would be improper because it would blur the material differences in the claim language recited expressly in the claims. Instead, we interpret the selection clauses recited in the challenged claims “in the context of the particular claim in which the disputed term appears” and “in the context of the entire patent, including the specification.” Phillips, 415 F.3d at 1313. In other words, we do not construe the single word “selecting” in isolation, but, rather, interpret the full selection clauses recited in the challenged claims in the context of the entire patent. Claim 13 recites “selecting, by the control circuit, a value of a control signal based on the mode indicator and on the leakage indicator.” In our view, the plain meaning of this limitation is clear on the face of the claim—a value of a control signal is selected based on two indicators, the mode indicator and the leakage indicator.” slip op. at 14

  • Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)UnpatentableUnpatentable

    “Tr. 47:7–23. Because the output of Kim’s NAND gates will be different depending on the value of Kim’s memory cells C1–CN allowed to “pass through,” we agree with Petitioner that the value of Kim’s memory cells C1– CN (the claimed “leakage indicator”) “plays a role” in deciding what the output of Kim’s NAND gates (the claimed “value of the control signal”) will be. Moreover, Patent Owner acknowledged that the output of Kim’s NAND gate is determined based on the inputs to the NAND gates (i.e., the sleep signal input and the memory cell signal input). JUDGE CHUNG: But, knowing a little bit about how a NAND gate works, isn’t it the case that the input to the NAND gates, G1 through GN, with the input of the sleep signal and the C1 through CN signal, isn’t it the case that input to the NAND gate determines what the output is? MS. ZHONG: Okay. So any logic gate, the output will depend on the input. That’s for sure. Tr. 44:18–25; but see id. at 45:3–10 (stating that even if the “output is in control of the input, . . . that does not mean the selection is based on that input”). Thus, we find that Kim’s NAND gate (the claimed “control circuit”) operates to determine its output (the claimed “value of the control signal”) based on its input of the sleep signal (the claimed “mode indicator”) and the memory cell value input (the claimed “leakage indicator”). As discussed in Section III.B, the Specification indicates that “select[ing] the value of the control signal based on the mode indicator and on the leakage indicator” recited in claim 13 is synonymous to determining the value based on the recited indicators. See Ex. 1101, 4:4–11. Thus, the evidence of record shows that Kim teaches “selecting, by the control circuit, a value of a control signal based on the mode indicator and on the leakage indicator,” as recited in claim 13.” slip op. at 44

  • Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation not foundNot shown unpatentableNot shown unpatentable

    “We are not persuaded by Petitioner’s argument and evidence. First, although Petitioner proposes “[s]ubstituting Lee’s inputs of leakage current and temperature for generating a power gate control signal” (i.e., Lee’s “control signal (BIAS)”) for “Kim’s inputs of leakage current and other ‘stimuli’ for generating a power gate control signal” (Pet. 64 (citing Ex. 1102 ¶ 115)), neither Petitioner nor Dr. Harris explains adequately how they are proposing to “substitute” Kim’s control signal with Lee’s “control signal (BIAS).” For example, Figure A reproduced above does not show how Petitioner or Dr. Harris proposes to use Lee’s “control signal (BIAS)” in the proposed combination. Petitioner asserts that “[a]lthough Lee’s control signal is analog and Kim’s control signal is digital, it was well known to apply teachings in an analog domain to a digital domain, and conversions between analog and digital domains were easy to implement.” Pet. 66 (emphases added) (citing Ex. 1102 ¶ 121; Ex. 1115). Dr. Harris similarly states that Figures A and B show examples of obvious ways to use in Kim’s system Lee’s teaching of setting conductance of the array based on temperature. A POSA would have found both of these ways obvious. That Lee uses an analog control signal and Kim uses a digital control signal would have presented no obstacle to a POSA. . . . That is, converting analog circuit elements and signals to digital was well known long before the ’026 patent. Ex. 1102 ¶ 121 (emphases added) (citing (Ex. 1115) (“Analog-to-digital converters (ADC’s) are ubiquitous, critical components of software radio and other signal processing systems.”)). But Dr. Harris does not explain adequately how “to use in Kim’s system” the digitized BIAS signal of Lee. See id. The only additional input signal shown in Figure A compared to Figure 4 of Kim is the temperature line that has the value of 0 when the temperature is cold and the value of 1 when the temperature is hot. See Ex. 1102 ¶ 116 (Fig. A). There is no explanation of how the modified teaching of the BIAS signal of Lee (i.e., modified or converted to a digital signal) would have worked in the proposed combination of Figure A.” slip op. at 69

  Patent outcomesUS 8,081,026 mixed
  Claim construction§ 102 anticipation§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 8,081,026
• Intel Corporation v. VLSI Technology LLCSome claims unpatentable
  PTAB · Jan 12, 2021 · IPR2019-01194 · APJ Minn Chung · IPR · Final written decision

  Claims 1 and 2 are unpatentable over Kim and Lee under § 103; Petitioner did not prove claims 4, 5, and 7 unpatentable because the combination was not adequately supported.

  RulingsFinal written decision

  • Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundMotivation not foundMixed

    “determine that Petitioner has demonstrated sufficiently that the combination of Kim and Lee teaches “a mode indicator generator for generating a mode indicator that indicates a desired mode of the power gated circuit,” as recited in claim 1, and has articulated sufficient reasoning with rational underpinning for combining Kim and Lee to arrive at the subject matter of this claim limitation. c. Conclusion on Claim 1” slip op. at 64

  • Expert testimonyOther

    “F. Testimonial Evidence Petitioner relies on two Declarations from David Harris, Ph.D. in” slip op. at 9

  Patent outcomesUS 8,081,026 mixed
  § 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 8,081,026

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.