• Clearwater Paper Corporation v. Graphic Packaging International LLCAll claims unpatentable
  PTAB · Sep 23, 2026 · IPR2025-00878 · APJ Carl M Defranco · IPR · Final written decision

  Claims 1–3 and 11 are unpatentable as anticipated by Cleveland and obvious over Nakagawa and over Nakagawa combined with Tanner.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “would have at least a bachelor’s degree in mechanical or chemical engineering, materials science, polymer science, or equivalent coursework, at least a year of experience developing paper-based laminates involving the application of polymer coatings to a substrate, and the appropriate industry familiarity with biodegradability standards and degradability techniques [and] . . . [l]ess work experience may be compensated by a higher level of education, such as a master’s degree, and vice versa. Pet. 16 (citing Ex. 1003 ¶ 50). Clearwater’s definition is uncontested, and we apply that definition here, as it accords with the level of skill reflected in the asserted prior art and the problems addressed in the specification of the ’126 patent. C. Claim Construction” slip op. at 6

  • Expert testimonyPetitioner expert creditedDecided for petitioner

    “We have reviewed the cited testimony of Clearwater’s expert, including their calculations for arriving at a coat weight in Nakagawa that falls within the claimed range. See Ex. 1003 ¶¶ 132–33. We find that testimony, which is unrebutted, both credible and supported by the evidence of record. Thus, in light of Clearwater’s contentions, the cited portions of Nakagawa, and the unrebutted testimony of Clearwater’s expert, we are persuaded that Nakagawa discloses or otherwise suggests each and every element of claim 1. See Pet. 45–54, 60–64. Clearwater also persuades us that Cleveland discloses the additional subject matter of dependent claims 2, 3, and 11. See Pet. 64–66. Thus, we determine that Clearwater demonstrates that claims 1–3 and 11 are unpatentable as obvious over Nakagawa. F. Ground 3—Obviousness Over Nakagawa and Tanner” slip op. at 17

  • Novelty / Anticipation (§102) › Prior-art status of a reference › Patents / published applications (effective date, provisional support)Reference is prior artDecided for petitioner

    “qualifies as prior art under 35 U.S.C. § 102(e)(1) “based on both its provisional and non-provisional filing dates.” Inst. Dec. 4 n.5. We were persuaded by Clearwater’s proof that Cleveland’s provisional (Ex. 1006) is “virtually identical” to Cleveland itself (Ex. 1005) and that the provisional provides written description support for at least claim 1 of Cleveland. See Pet. 18–21 (citing Ex. 1006, 2–6, 9). We were also persuaded by Clearwater’s showing that the provisional provides written support for the subject matter relied upon in Cleveland. Id. at 21–40 (citing Ex. 1006, 1–9). We are still persuaded by Clearwater’s showing. Thus, we see no reason to disturb our earlier finding that Cleveland is prior art to the ’126 patent.” slip op. at 7

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

    “protectant layers has “a coat weight of from 5 to 30 lbs/3000 ft2.” As noted by Clearwater, Cleveland discloses a total coat weight for layers 14 and 16 as falling within the claimed range. Pet. 32–34 (citing Ex. 1005 ¶ 32). In particular, Cleveland discloses that “the coextruded layer of copolyester (irrespective of which side of the substrate the layer is disposed) is of a total coat weight of between about 10 and about 40 lb/3000 ft2 in any combination of between about 80/20 to 20/80 parts by weight of Ecoflex to Biomax,” of which “a total coat weight of 25 lb/3000 ft2 is preferred.” Ex. 1005 ¶ 32. As disclosed, Cleveland’s total coat weight range of 10–40 lb/3000 ft2 falls almost entirely within the claimed range, and the preferred total coat weight of 25 lb/3000 ft2 falls squarely within the claimed range. Thus, Cleveland satisfies claim elements [1.3.2] and [1.5.2]. See Titanium Metals Corp. v. Banner, 778 F.2d 775, 782 (Fed. Cir. 1985) (“[W]hen, as by a recitation of ranges or otherwise, a claim covers several compositions, the claim is anticipated if one of them is in the prior art.”) (citation omitted). As such, we find that Clearwater adequately demonstrates that Cleveland discloses all the elements of claim 1. 4. Dependent Claims” slip op. at 12

  Patent outcomesUS 8,637,126 unpatentable
  § 102 anticipation§ 103 obviousnesscites Phillips
  Patents in suitUS 8,637,126
• Micron Technology, Inc. v. Yangtze Memory Technologies Co., Ltd.No claims unpatentable
  PTAB · Jul 21, 2026 · IPR2025-00190 · APJ Kimberly Mcgraw · IPR · Final written decision

  Claims 1, 3–11, 13, and 14 were not shown unpatentable because Dong did not disclose the claimed vertical wordline arrangement, and the proposed 3D NAND combination lacked support for motivation and reasonable expectation of success.

  RulingsFinal written decision

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

    “understanding that the claim term “from bottom to top” refers to the vertical arrangement of word lines in the memory portions from bottom to top and not from source end to drain end, as asserted by Petitioner. Inst. Dec. 17. In other words, the claim terms describing the first and second portions having word lines “from top to bottom” refer to the relative vertical location of the word lines within the memory portions and not to location of the word lines relative to the source or drain. Our construction is based on the plain and ordinary meaning of the express language of the independent claims, which states that the second memory portion is formed either above or below the first memory portion. The forming of one memory portion above or below another portion establishes a top and bottom in relation to those portions. For example, claim 5 is directed to a “program method of memory” that requires a second portion formed above the first portion. A second memory portion that is formed above a first memory portion is on top relative to the first portion. Similarly, claims 1 and 1 and 11, which recite a memory having a second portion formed below a first portion, establish that the second portion is on the bottom relative to the first portion. Thus, the claim language itself establishes the vertical locations of the memory portions relative to each other (e.g., a second memory portion that is above the first portion is on top, relative to the first portion). It follows that claim terms referring to the top and bottom of word lines within the memory portions also refer to relative vertical locations of the word lines within the memory portions. Thus, we understand the plain and ordinary meaning of claim” slip op. at 13

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

    “In our Decision, we treated the preambles of claims 5 and 11 as limiting, noting that these preambles provide antecedent basis for the word line limitations recited in the body of their respective claim. Dec. 14–15, 8. Neither party disputes that the preambles of claims 5 and 11 are limiting. See PO Resp. 34–35 (agreeing that the preambles are limiting); see generally Reply 1–6 (not disputing that the preambles are limiting). We maintain our construction of the preambles in this Decision.” slip op. at 11

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “we consider the level of ordinary skill at the time of filing. 35 U.S.C. § 103; see also Graham, 383 U.S. at 17 (discussing pre-AIA obviousness). Petitioner contends that a person of ordinary skill in the art (“POSITA”) would have had a 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 memory devices (including issues relating to the operation, e.g., programming, of said devices), or an equivalent level of skill, knowledge, and experience (e.g., an advanced degree may replace some of the professional experience). Pet. 22 (citing Ex. 1004 ¶¶ 40–42). Petitioner also asserts that a POSITA would have been aware of and generally knowledgeable about NAND memory’s structure and fabrication, its component parts, how it operates, and how it is controlled. Id. at 22–23 (citing Ex. 1004 ¶ 41). In the Institution Decision, we adopted the assessment offered by Petitioner, which Patent Owner did not contest. Inst. Dec. 13. Following institution, Patent Owner stated it does not dispute Petitioner’s definition of a POSITA. PO Resp. 9 (citing Khatri Dec. ¶¶ 42–47). Because Petitioner’s definition of the level of skill in the art appears consistent with the ’941 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 9

  • Expert testimonyPatent owner expert creditedOther

    “We disagree and find that Dong’s Figure 5a does not depict wordlines in a physical vertical orientation, but rather depicts voltage diagrams. We agree with Patent Owner’s argument, supported by persuasive testimony by Dr. Khatri, that a POSITA would have understood that Dong’s voltage charts (e.g., Fig. 5a) simply represent which voltages are applied to which word lines and do not depict the physical orientation of the wordlines. See, e.g., Ex. 2028 ¶ 171 (citing Ex. 1005 ¶ 20; Ex. 1009 ¶¶ 52–54). As Dr. Khatri explains, Dong Figures 5a–5h depict different examples of self-boosting modes showing voltages applied differently to the wordlines and are not intended to depict the physical orientation of these word lines. Ex. 2028 ¶ 171; see also Sur-reply 11–12 (citing Ex. 1005 ¶¶ 47, 65, 63–67; Ex. 2028 ¶¶ 177–186). We agree with Dr. Kahtri’s persuasive testimony that a POSITA would understand that Figures 5a–5h are illustrated vertically, but do not represent the actual physical arrangement of the word lines in memory, which are shown to be horizontal in Dong’s Figure 4. See, e.g., Ex. 2028 ¶ 172 (citing Ex. 1005 ¶¶ 20, 45, 47, 87).” slip op. at 24

  Patent outcomesUS 11,568,941 not shown unpatentable
  Claim construction§ 102 anticipation§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 11,568,941
• Innoscience America, Inc. v. Infineon Technologies Americas Corp.No claims unpatentable
  PTAB · Jun 30, 2026 · IPR2025-00175 · APJ Jo-Anne M Kokoski · IPR · Final written decision

  Claims 1–17 were not shown unpatentable because Petitioner failed to establish that Usui’s interconnect structure or Yu’s metal gate stacks satisfy the construed “electrode stack” limitation.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “(“POSITA” or “POSA”) would have had “at least a four-year degree in electrical engineering or a closely related field, and at least two years of experience in semiconductor device design,” and “[a]dditional education could substitute for professional experience and vice versa.” Pet. 6 (citing Ex. 1002 ¶¶ 80–82). Patent Owner does not dispute Petitioner’s proposed level of ordinary skill. PO Resp. 1–76. Neither party explains why the outcome of this case would be affected by the adoption of the proffered definition of a person of ordinary skill in the art. In the Institution Decision, we adopted the assessment offered by Petitioner. Dec. 6–7. Because Petitioner’s definition of the level of skill in the art is consistent with the ’562 patent and the asserted prior art, we maintain Petitioner’s definition for purposes of this Final Written Decision. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir 2001).” slip op. at 9

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

    “comprises the recited metals and has the recited thickness, which forms an electrical contact for use on a semiconductor device generally or a group III- V semiconductor in particular. This is consistent with our determination that “electrode stack” is a conductor that provides a path for current entering or leaving a medium such as a semiconductor device We disagree with Patent Owner that “electrode stack” as used in the challenged claims should be limited to the specific electrodes shown in the embodiments described in the Specification. See PO Resp. 4–9. Although the Specification describes embodiments using source, drain, and Schottky gate electrodes as electrical contacts, we see no reason to construe the term “electrode stack” itself to be limited to these components as Patent Owner proposes. Claims 1 and 13 expressly recite that electrode stacks comprise the claimed “electrical contact,” without expressly including or precluding any specific type of electrode. Ex. 1001, 5:54–63, 6:37–47. The Federal Circuit advises that the Specification “is not a substitute for, nor can it be used to rewrite, the chosen claim language. ‘Specifications teach. Claims claim.’” SuperGuide, 358 F.3d at 875 (quoting SRI Int’l v. Matsushita Elec. Corp. of Am., 775 F.2d 1107, 1121 n.14 (Fed. Cir. 1985) (en banc)). The Specification does teach electrical contacts that include source, drain, and Schottky gate electrodes, but claims 1 and 13 are directed to electrical contacts that are not expressly so limited. Patent Owner’s proposed construction would effectively rewrite the claim by adding limitations, which we decline to do under the guise of claim construction. See id. (“Though understanding the claim language may be aided by the explanations contained in the written description, it is important not to import into a claim limitations that are not a part of the claim.”). In view of the foregoing, we construe the claim term “electrode stack” to mean “a conductor that provides a path for current entering or leaving a medium such as a semiconductor device.”” slip op. at 17

  • Expert testimonyPetitioner expert discountedDecided for patent owner

    “that the identified layers in Usui’s interconnect metallurgy structure form an “electrode stack including a plurality of metal layers and a capping layer formed over said plurality of metal layers” as recited in claim 1. See Pet. 11–12 (citing Ex. 1002 ¶¶ 89–91). Neither Petitioner nor Dr. Zhao, however, provide adequate explanation or evidence as to why Usui’s interconnect metallurgy structure forms an “electrode stack,” i.e., a conductor that provides a path for current entering or leaving a medium such as a semiconductor device. Dr. Zhao’s testimony merely repeats the disclosures in Usui and concludes, without further technical detail, explanation, or reference to objective evidence, that Usui’s Figure 8 discloses an electrode stack. Ex. 1002 ¶¶ 89–91. Dr. Zhao’s testimony sets forth Petitioner’s conclusory assertions as though they are facts, rather than setting forth facts and evidence in support of those assertions. Compare id. with Pet. 11–12. Absent underlying facts or evidence to support Dr. Zhao’s opinion, the cited testimony “adds little to the conclusory assertion for which it is offered to support, and is entitled to little weight.” Xerox Corp. v. Bytemark, Inc., IPR2022-00624, Paper 9 at 15 (PTAB Aug. 24, 2022) (precedential). In contrast, Patent Owner’s declarant Dr. Piner testifies, with evidentiary support, that interconnects (such as Usui’s interconnect metallurgy structure) and electrical contacts (such as that claimed in the ’562 patent) are not the same thing. See Ex. 2024 ¶¶ 63–70. For example, Dr. Piner explains: In other words, not all metals in a semiconductor device have the same purpose and could not be said to be interchangeable. By August 2009 it was well known to a POSA how to discern if a metal component in a transistor is an interconnect or serves as an electrical contact such as a gate contact or ohmic contact, based on the structure and functionality of the metal component. For example, interconnects are made up of metal strips and are deposited on insulators. EX-1011 (Mishra) at 216. Interconnects are low resistance conductors that can carry very high current densities. Id., 216, 217. Unlike Schottky contacts and ohmic contacts, interconnects do not provide non-linear IV response like Schottky contacts nor inject electrons and holes into semiconductors like ohmic contacts. Id., 218. As many of the references cited by Dr. Zhao illustrate, electrical contacts had their own highly complex design challenges. EX-1008 (Pearton), 41-59 (Pages 53-71 of 383) (discussing electrical contacts); EX-1017 (Kramer), 11-126 (Pages 18-130 of 151) (same). And while Dr. Zhao cites these as supporting a POSA’s knowledge of an electrical contact, none of these references describe electrical contacts as interconnects. Id. ¶ 71. Dr. Piner further testifies that Usui’s interconnect metallurgy structure is an interconnect, and not an electrical contact, because “Usui states that ‘[t]he structures fabricated by the process of the present invention are especially useful for forming electrical connections or wiring such as between active and/or passive devices of an integrated circuit structure.’” Id. ¶ 148 (citing Ex. 1004, 1:11–14) (alteration in original); see also id. ¶¶ 150– 151 (Dr. Piner testifying that Usui’s interconnect metallization structure is not an “electrode stack” under a broad definition of electrode). Dr. Piner’s testimony in this regard rebuts Petitioner’s and Dr. Zhao’s conclusory assertions to the contrary.” slip op. at 21

  • Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)Not shown unpatentableNot shown unpatentable

    “conductor that provides a path for current entering or leaving a medium such as a semiconductor device.” Thus, Petitioner must show that Usui’s layers 13–15, 18, and 19 provide a path for current entering or leaving a medium such as a semiconductor device. After reviewing the complete trial record, we are not persuaded that Petitioner has done so. Petitioner relies on the testimony of Dr. Zhao to support its contention that the identified layers in Usui’s interconnect metallurgy structure form an “electrode stack including a plurality of metal layers and a capping layer formed over said plurality of metal layers” as recited in claim 1. See Pet. 11–12 (citing Ex. 1002 ¶¶ 89–91). Neither Petitioner nor Dr. Zhao, however, provide adequate explanation or evidence as to why Usui’s interconnect metallurgy structure forms an “electrode stack,” i.e., a conductor that provides a path for current entering or leaving a medium such as a semiconductor device. Dr. Zhao’s testimony merely repeats the disclosures in Usui and concludes, without further technical detail, explanation, or reference to objective evidence, that Usui’s Figure 8 discloses an electrode stack. Ex. 1002 ¶¶ 89–91. Dr. Zhao’s testimony sets forth Petitioner’s conclusory assertions as though they are facts, rather than setting forth facts and evidence in support of those assertions. Compare id. with Pet. 11–12. Absent underlying facts or evidence to support Dr. Zhao’s opinion, the cited testimony “adds little to the conclusory assertion for which it is offered to support, and is entitled to little weight.” Xerox Corp. v. Bytemark, Inc., IPR2022-00624, Paper 9 at 15 (PTAB Aug. 24, 2022) (precedential).” slip op. at 21

  Patent outcomesUS 8,686,562 not shown unpatentable
  Claim construction§ 102 anticipation§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 8,686,562
• Stingray Group Inc. / Stingray Music USA, Inc. v. Edwin A. Hernandez-MondragonSome claims unpatentable
  PTAB · Jun 10, 2026 · IPR2025-00350 · APJ Jason M Repko · IPR · Final written decision

  Claims 7–12 were held unpatentable over Wannamaker alone or with Avellan; claims 1–6 and 13 were not shown unpatentable because Avellan did not teach the claimed screen-capture sequence and assembly.

  RulingsFinal written decision

  • Skill levelSkill level board ownDecided for petitioner

    “Patent Owner submits a similar definition and does not take issue with the Petition’s characterization of the level of ordinary skill in the art. PO Resp. 17. We determine that no express finding is necessary and that the level of ordinary skill in the art is reflected by the prior art of record. Any perceived difference in how each party characterizes a POSITA’s education, knowledge, and work experience does not change our analysis or conclusions.” slip op. at 5

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

    “Neither party has offered any claim construction arguments, relying on ordinary and customary meaning. Pet. 19–20; PO Resp. 18. We determine that construction of claim terms is not necessary to resolve the disputes raised by the parties in this proceeding.” slip op. at 5

  • Expert testimonyPetitioner expert discountedDecided for patent owner

    “Yet paragraph 122 of Mr. Lipoff’s declaration merely repeats the Petition’s argument almost verbatim. Compare Ex. 1007 ¶ 122, with Pet. 28. Mr. Lipoff does not add any citation to Avellan or any other source that supports his testimony. See Ex. 1007 ¶ 122. Nor does Mr. Lipoff offer any additional technical reasoning than what is stated in the Petition. Testimony may be entitled to little weight if it merely restates the petition’s unsupported, conclusory assertions without adding supporting evidence or technical reasoning. Xerox Corp. v. Bytemark, Inc., IPR2022-00624, Paper 9 at 15 (PTAB Aug. 24, 2022) (precedential). That is the case here.” slip op. at 8

  • Obviousness (§103) › Graham factors (scope of art, differences, level of skill)Not shown unpatentableNot shown unpatentable

    “We are persuaded by Patent Owner’s argument that claim 1 is not obvious over Avellan because it does not assemble a media stream of multimedia items using the recited screen captures. See PO Resp. 21–23. We agree with Patent Owner that the plain language of the claim requires more than transmitting individual media items. PO Sur-reply 20. To the extent that Avellan captures images, those images do not meet the claimed requirements for a “temporal sequence of screen captures” in the independent claims, which must (1) be of the web page rendered by a browser, (2) “define all the content of the web page at a given time,” (3) “illustrate a dynamic change of at least a portion of the content over time” when two of them are compared, and (4) used to assemble “the at least one media stream.” Rather, the record better supports Patent Owner’s argument that Avellan transmits the multimedia items separate from any media stream assembled from screen captures. PO Resp. 21–23; PO Sur-reply 20.” slip op. at 7

  Patent outcomesUS 10,524,002 mixed
  Claim construction§ 102 anticipation§ 103 obviousnesscites KSR
  Patents in suitUS 10,524,002
• Shenzhen Tuozhu Technology Co., Ltd. v. Stratasys, Inc.No claims unpatentable
  PTAB · Jun 9, 2026 · IPR2025-00321 · APJ Christopher M Kaiser · IPR · Final written decision

  The Board held claims 1, 2, 5–7, 9, 16, and 17 not unpatentable because the asserted combinations did not establish the required purge-tower teachings or prior-art status.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Petitioner contends that one of ordinary skill in the art “would have had (1) at least a bachelor’s degree in Mechanical Engineering, Computer Engineering, Chemical Engineering, Materials Science, or a related field, and (2) at least two years of research or industry experience in 3D printing or materials used for 3D printing.” Pet. 5 (citing Ex. 1003 ¶¶ 14–16). Petitioner also argues that “[a]dditional experience could substitute for a formal degree or formal training (and vice versa).” Id. Patent Owner proposes a slightly different level of skill, arguing that a person of ordinary skill in the art “would have had a bachelor’s degree in Mechanical Engineering, Computer Engineering, Chemical Engineering, Materials Science, or a comparable field and at least two years of experience related to 3D printing, with additional experience potentially being a substitute for a formal degree or training (and vice versa).” Prelim. Resp. 24. Neither party explains why the outcome of this case would be affected by the adoption of any of the proffered definitions of a person of ordinary skill in the art. We adopt Petitioner’s assessment of the level of ordinary skill in the art, as it appears consistent with the ’324 patent and the asserted prior art. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001).” slip op. at 8

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

    “According to the ’713 patent, “[p]urge tower 24 itself may be . . . recycled or otherwise discarded as desired.” Ex. 1001, 8:27–28. This description provides some support for Patent Owner’s view, because a purge tower too intimately integrated with the part would be difficult or impossible to recycle or discard. This is further supported by the ’713 patent’s statement that “purge tower 24 may be printed at any suitable location on build substrate 44 (i.e., at any location in the x-y build plane not occupied by 3D part 20 or support structure 22).” Id. at 8:30–34. It also is supported by Dr. Hickner’s testimony that the ’713 patent “clearly shows . . . the 24 purge tower separated from the part” and that “the purge tower is a separate physical object.” Ex. 2016, 28:8–10, 64:1–9. On the other hand, there is evidence supporting Petitioner’s view that, as long as the purge tower is generally separate from the part and the support structure, it may still make contact with those portions of the print. As noted above, “purge tower 24 may be printed at any suitable location on build substrate 44 (i.e., at any location in the x-y build plane not occupied by 3D part 20 or support structure 22).” Ex. 1001, 8:30–34. This language does not exclude locations adjacent to or in contact with the part or the support structure. Thus, determine that a “purge tower,” as that term is used in the context of the ’713 patent, may not be an integrated portion of a printed part or support structure but need not be free of all contact with the printed part or support structure.” slip op. at 9

  • BurdenNot shown unpatentable

    “There is evidence of record to support both Petitioner’s view and Patent Owner’s view. On the record developed at trial, however, we cannot say that the preponderance of the evidence favors Petitioner, who bears the burden of proof. See 35 U.S.C. § 316(e). Accordingly, Petitioner has not shown by a preponderance of the evidence that KISSlicer teaches printing a layer of a purge tower each time the printer switches one extruder to the operating mode. Because proving the obviousness of claims 1 and 16 requires such a showing, Petitioner has not shown by a preponderance of the evidence that claims 1 and 16 would have been obvious over the combination of Priedeman and KISSlicer. 5. Analysis of Remaining Claims Claims 2, 6, 7, 9, and 17 all depend, directly or indirectly, from claim 1 or claim 16. Accordingly, they all include the limitations of either claim 1 or claim 16. Because, as discussed above, Petitioner has not shown that the combination of Priedeman and KISSlicer teaches or suggests all the limitations of claims 1 and 16, Petitioner also has not proven by a preponderance of the evidence that claims 2, 6, 7, 9, and 17 would have been obvious over that combination of references.” slip op. at 21

  • Obviousness (§103) › Analogous artAnalogous artOther

    “On the record developed at trial, we agree with Petitioner. According to several industry forum posts, people interested in three-dimensional printing located the website where KISSlicer was posted between February 2012 and April 2012. Ex. 1028, 1 (post discussing and directing others to KISSlicer on April 11, 2012); Ex. 1031, 1 (two posts discussing KISSlicer on March 16, 2012, and March 21, 2012); Ex. 1032, 1 (two posts discussing KISSlicer on February 11, 2012, and February 14, 2012). Thus, not only was it possible for people of ordinary skill in the art to locate KISSlicer; people of ordinary skill in the art actually did locate it. Accordingly, Petitioner has shown by a preponderance of the evidence that KISSlicer was publicly accessible.” slip op. at 19

  Patent outcomesUS 9,421,713 not shown unpatentable
  Claim construction§ 102 anticipation§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 9,421,713
• Stingray Group Inc. / Stingray Music USA, Inc. v. Edwin A. Hernandez-MondragonNo claims unpatentable
  PTAB · May 29, 2026 · IPR2025-00349 · APJ Jason M Repko · IPR · Final written decision

  Claims 1–21 were not shown unpatentable because Avellan did not disclose the claimed sequence of screen captures used to assemble a media stream.

  RulingsFinal written decision

  • Skill levelOther

    “Patent Owner submits a similar definition and does not dispute the Petition’s characterization of the level of ordinary skill in the art. PO Resp. 22. No express finding is necessary. The level of ordinary skill in the art is reflected by the prior art of record. Any perceived difference in how each party characterizes a POSITA does not change our analysis or conclusions.” slip op. at 5

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

    “on ordinary and customary meaning. Pet. 14–15; PO Resp. 22. We determine that construction of claim terms is not necessary to resolve the disputes raised by the parties in this proceeding.” slip op. at 6

  • Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)Not shown unpatentableNot shown unpatentable

    “c. Analysis “A claim is anticipated only if each and every element as set forth in the claim is found, either expressly or inherently described, in a single prior art reference.” Verdegaal Bros. v. Union Oil Co. of California, 814 F.2d 628, 631 (Fed. Cir. 1987). We are persuaded by Patent Owner’s argument that Avellan does not anticipate claim 1 because it does not assemble a media stream of multimedia items using the recited screen captures. See PO Resp. 26–29. We agree with Patent Owner that the plain language of the claim requires more than transmitting individual media items. Sur-reply 21. To the extent that Avellan captures images, those images do not meet the claimed requirements for a “temporal sequence of screen captures” in the independent claims, which must (1) be of the web page rendered by a browser, (2) “define all the content of the web page at a given time,” (3) “illustrate a dynamic change of at least a portion of the content over time” when two of them are compared, and (4) used to assemble “the at least one media stream.” Rather, the record better supports Patent Owner’s argument that Avellan transmits the multimedia items separate from any media stream assembled from screen captures. PO Resp. 26–29; Sur-reply 21.” slip op. at 8

  • Obviousness (§103) › Graham factors (scope of art, differences, level of skill)Not shown unpatentableNot shown unpatentable

    “All other challenged claims require the “generating” and “assembling” operations because they depend from claims 1, 12, or 17. Petitioner does not allege that the additional references—Durante, Ma, Suzuki, Wanamaker, Heikens, Matthews, or Wilsher—teach or suggest the “temporal sequence of screen captures” recited in claim 1. Rather, Petitioner’s reasoning in the challenges to the dependent claims pertaining to the screen captures mirror the rationale presented in the independent claim. See, e.g., Pet. 25 (arguing that Avellan’s screen captures correspond to the video content in the challenge to claim 2), 26–27 (arguing that Avellan obtains screen captures from a playback of a video on the webpage in the challenge to claim 4). Petitioner’s argument that Avellan teaches or suggests these operations in the grounds based on obviousness under 35 U.S.C. § 103 depend on the reasoning and insufficiently supported characterizations of Avellan in the challenges based on 35 U.S.C. § 102, as discussed above. See Pet. 40–60. grounds based on anticipation under 35 U.S.C. § 102 or teaches or suggests these operations in the grounds based on obviousness under 35 U.S.C. § 103, Petitioner has not met its burden to show that any challenged claim is unpatentable as anticipated by Avellan or obvious over any of the combinations of Avellan and the other cited references.” slip op. at 15

  Patent outcomesUS 10,123,074 not shown unpatentable
  Claim construction§ 102 anticipation§ 103 obviousness
  Patents in suitUS 10,123,074
• Stingray Group Inc. / Stingray Music USA, Inc. v. Edwin A. Hernandez-MondragonSome claims unpatentable
  PTAB · May 28, 2026 · IPR2025-00351 · APJ Brian P Murphy · IPR · Final written decision

  Claims 1–9 are unpatentable as obvious over the stated combinations; claims 10–26 were not shown unpatentable because Avellan does not teach limitations [10d]–[10f].

  RulingsFinal written decision

  • Skill levelOther

    “would have a bachelor’s or equivalent degree in computer science or a related field and at least 2 years of experience in multimedia processing or delivery using internet protocols.” Pet. 10 (citing Ex. 1002 ¶¶ 67–68). The Petition further states that “a person with less formal education but more experience, or more formal education but less experience, could have also met the relevant standard for a POSITA.” Id. Patent Owner submits a similar definition and does not take issue with the Petition’s characterization of the level of ordinary skill in the art of delivering multimedia content. Resp. 18. We determine that no express finding is necessary and that the level of ordinary skill in the art is 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). Any perceived difference in how each party characterizes a POSITA’s education, knowledge, and work experience does not change our analysis or conclusions. slip op. at 7

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

    “Neither party has offered any claim construction arguments, relying on ordinary and customary meaning. Pet. 11; Resp. 18–19; Reply 5. We determine that construction of claim terms is not necessary to resolve the disputes raised by the parties in this proceeding. See, e.g., Wellman, Inc. v. Eastman Chem. Co., 642 F.3d 1355, 1361 (Fed. Cir. 2011) (“[C]laim terms need only be construed ‘to the extent necessary to resolve the controversy.’”) (quoting Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999)).” slip op. at 8

  • Expert testimonyPetitioner expert creditedDecided for petitioner
  • Novelty / Anticipation (§102) › Anticipation standard (single reference, every element) › Inherent disclosureInherency not foundNot shown unpatentableNot shown unpatentable

    “To establish inherency, the extrinsic evidence “must make clear that the missing descriptive matter is necessarily present in the thing described in the reference, and that it would be so recognized by persons of ordinary skill.” Continental Can Co. v. Monsanto Co., 948 F.2d 1264, 1268 (Fed. Cir. 1991). “‘Inherency, however, may not be established by probabilities or possibilities. The mere fact that a certain thing may result from a given set of circumstances is not sufficient.’” Id. at 1269 (quoting In re Oelrich, 666 F.2d 578, 581 (C.C.P.A. 1981)). Reasonable inferences of a POSITA may suffice to establish inherent disclosure in a prior art reference such as Farber. See Eli Lilly v. Los Angeles Biomedical Research Institute, 849 F.3d 1073, 1074–1075 (Fed. Cir. 2017) (“[T]he dispositive question regarding anticipation is whether one skilled in the art would reasonably understand or infer from a prior art reference that every claim element is disclosed in that reference.”). Here, however, we find the Petition’s argument and evidence insufficient to establish by a preponderance of the evidence that Farber inherently discloses limitation [1b].” slip op. at 16

  Patent outcomesUS 11,140,441 mixed
  Claim construction§ 102 anticipation§ 103 obviousness
  Patents in suitUS 11,140,441
• Samsung Electronics Co., Ltd. v. Wilus Institute Of Standards And Technology Inc.Instituted
  PTAB · Feb 6, 2026 · IPR2025-00988 · APJ Terrence W Mcmillin · IPR · Institution

  The Board instituted IPR on claims 1–14 and all petition grounds; it found a reasonable likelihood of success on the Josiam-based grounds, while the Bharadwaj grounds lacked established prior-art status.

  RulingsInstitution decision

  • PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted

    “review. 35 U.S.C. § 314 (2018); 37 C.F.R. § 42.4(a) (2020) (“The Board institutes the trial on behalf of the Director.”). The standard for institution is set forth in 35 U.S.C. § 314(a), which provides that inter partes review may not be instituted unless “there is a reasonable likelihood that the petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” After considering the Petition and the Preliminary Response, as well as the evidence of record, we institute an inter partes review as to claims 1–14 of the ’281 patent.3” slip op. at 2

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Determining the level of ordinary skill in the art involves various factors, including the “type of problems encountered in the art; prior art solutions to those problems; rapidity with which innovations are made; sophistication of the technology; and educational level of active workers in the field.” In re GPAC Inc., 57 F.3d 1573, 1579 (Fed. Cir. 1995) (citation omitted). The prior art of record also reflects the level of ordinary skill in the art. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001). For purposes of this institution decision, we adopt the assessment offered by Petitioner.11 It is not materially disputed by the Patent Owner and is consistent with the ’281 patent and the asserted prior art.” slip op. at 10

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

    “Petitioner asserts “that no formal claim constructions are necessary.” Pet. 3. “Patent Owner applies the plain and ordinary meaning of the challenged claims.” Prelim. Resp 11. At this stage, no need exists to expressly construe any claim terms to resolve any dispute between the parties.12 See Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 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))). D.” slip op. at 11

  • Novelty / Anticipation (§102) › Priority / effective filing date / continuation supportPriority date, deniedReference is prior artDecided for petitioner

    “contention that either of the cited documents alone discloses all the elements of these limitations. And, the disclosure relied on in Exhibit 1007 is not alleged to be found in Exhibit 1009 and vice-versa. Patent Owner has not shown that any of the pre-May 14, 2016, Korean applications from which the ’281 claims priority includes disclosure of all the elements recited in limitations 1.9 and 8.6. At least at this stage, we determine that Petitioner has sufficiently shown, for the purpose of institution that Josiam is prior art.16 We credit the testimony of Dr. Buehrer cited in the Petition that none of the Korean applications to which the ’281 patent claims priority filed earlier than May 14, 2016, “explicitly, implicitly, or inherently discloses using both the bandwidth field of the HE-SIG-A and the resource unit allocation field of the HE-SIG-B to indicate channel puncturing information as the claim elements require. . . . At best, these documents discuss indicating unused channels using either HE-SIG-A or HE-SIGB fields—but not both.” Pet. 7 (citing Ex. 1003 (Buehrer Decl.) ¶¶ 90–91). Dr. Buehrer’s testimony has not been shown by Patent Owner to be inaccurate.” slip op. at 20

  Claim construction§ 102 anticipation§ 103 obviousnesscites Phillips · KSR
  Patents in suitUS 10,687,281
• Dr. Squatch, LLC v. The Procter & Gamble CompanyAll claims unpatentable
  PTAB · Jan 28, 2026 · IPR2024-01174 · APJ Susan L C Mitchell · IPR · Final written decision

  Claims 1–8 and 10–23 are unpatentable: the Board found claims 1–15 anticipated or obvious over the asserted grounds and claims 16–23 obvious over the Native combination.

  RulingsFinal written decision

  • Expert testimonyPetitioner expert creditedPatent owner expert discountedOther

    “argument that the prior art fails to enable a stable deodorant stick. Rather, we are persuaded by Petitioner that Lesniak sufficiently teaches compositions with the relevant ingredients and achieves stable compositions through the use of a second wax having a melting point of 73 to 90° C. Reply 6–7 (citing Ex. 1003, 1:39–54). For example, Lesniak’s compositions (nos. 8 and 11) that used such a second wax, namely CastorWax MP80, are disclosed as sufficiently stable. Ex. 1003, Table 2. Here, we further credit the testimony of Dr. Michniak-Kohn that Lesniak teaches how to make stable compositions by including a secondary wax, such as castor wax, with a sufficiently high melting point. Ex. 1003, 1:39-54, 5:23-32, Table 2. Both of the compositions (nos. 8 and 11) tested by Lesniak that had such a wax passed the stability tests. Id. Ex. 1086 ¶ 7; see also Reply 6 (“Lesniak overcame any stability issues, as it expressly discloses compositions that are ‘physically stable at high and low temperatures.’”) (citing Ex. 1003, 5:23–32).” slip op. at 22

  • Skill levelSkill level petitioner adoptedOther

    “Petitioner proposes that a person of ordinary skill in the art (“POSA” or “POSITA”) at the time of the invention “would have (1) at least a B.S. or equivalent degree; and (2) at least two years of experience in cosmetics formulations.” Pet. 17 (citing Ex. 1002 ¶¶ 27–29). Patent Owner does not dispute Petitioner’s proposal about the POSA’s qualifications at this stage of the proceeding. PO Resp. 10. For this Decision, we adopt and apply Petitioner’s proposal above, which does not appear to be inconsistent with the level of skill reflected in the asserted prior art.” slip op. at 9

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

    “Patent Owner asserts that the preamble of independent claim 1, 16, and 20 reciting “a deodorant stick” is limiting” as it provides antecedent basis for the recitation of “said deodorant stick being free of an aluminum salt” for each independent claim. PO Resp. 7–10. Patent Owner also points to dependent claims 6–9 as relying on the preamble reciting “a deodorant stick” as antecedent basis for claim elements. Id. at 9. We agree. Petitioner does not provide argument to the contrary. See, e.g., Pet. 19 (arguing that Lesniak discloses a deodorant stick in the form of an antiperspirant stick). We determine that no express construction of any claim term is necessary to determine whether to institute inter partes review. Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 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))). To the extent further discussion of the meaning any claim term is necessary to our decision, we provide that discussion below in our analysis of the asserted grounds of unpatentability.” slip op. at 8

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

    “We find that the evidence of record fails to support Patent Owner’s argument that the prior art fails to enable a stable deodorant stick. Rather, we are persuaded by Petitioner that Lesniak sufficiently teaches compositions with the relevant ingredients and achieves stable compositions through the use of a second wax having a melting point of 73 to 90° C. Reply 6–7 (citing Ex. 1003, 1:39–54). For example, Lesniak’s compositions (nos. 8 and 11) that used such a second wax, namely CastorWax MP80, are disclosed as sufficiently stable. Ex. 1003, Table 2. Here, we further credit the testimony of Dr. Michniak-Kohn that Lesniak teaches how to make stable compositions by including a secondary wax, such as castor wax, with a sufficiently high melting point. Ex. 1003, 1:39-54, 5:23-32, Table 2. Both of the compositions (nos. 8 and 11) tested by Lesniak that had such a wax passed the stability tests. Id. Ex. 1086 ¶ 7; see also Reply 6 (“Lesniak overcame any stability issues, as it expressly discloses compositions that are ‘physically stable at high and low temperatures.’”) (citing Ex. 1003, 5:23–32). Having considered the parties’ positions and evidence of record, summarized above, we determine that Lesniak provides sufficient disclosure to enable a person of ordinary skill in the art to formulate deodorant stick within the parameters of claim 1. Therefore, for the reasons discussed above, we conclude that Petitioner has proved by a preponderance of evidence that Lesniak anticipates claim 1.” slip op. at 22

  Patent outcomesUS 11,497,706 unpatentable
  Claim construction§ 102 anticipation§ 103 obviousness§ 112 disclosurecites KSR · Graham
  Patents in suitUS 11,497,706
• Dr. Squatch, LLC v. The Procter & Gamble CompanyAll claims unpatentable
  PTAB · Jan 28, 2026 · IPR2024-01173 · APJ Susan L C Mitchell · IPR · Final written decision

  Claims 1–7, 9–13, and 16–19 are unpatentable: claims 16–17 are anticipated by Lesniak, and the remaining challenged claims are obvious over the stated combinations.

  RulingsFinal written decision

  • Expert testimonyPetitioner expert creditedPatent owner expert discountedDecided for petitioner

    “argument that the Lesniak fails to enable a stable deodorant stick. Rather, we are persuaded by Petitioner that Lesniak sufficiently teaches compositions with the relevant ingredients and achieves stable compositions through the use of a second wax having a melting point of 73 to 90° C. Pet. Reply 8 (citing Ex. 1003, 1:39–54). For example, Lesniak’s compositions (nos. 8 and 11) that used such a second wax, namely CastorWax MP80, are disclosed as sufficiently stable. Ex. 1003, Table 2. Here, we further credit the testimony of Dr. Michniak-Kohn that secondary wax, such as castor wax, with a sufficiently high melting point. Ex. 1003, 1:39-54, 5:23-32, Table 2. Both of the compositions (nos. 8 and 11) tested by Lesniak that had such a wax passed the stability tests. Ex. 1086 ¶ 7; see also Reply 8 (“Lesniak overcame any stability issues, as it expressly discloses compositions that are ‘physically stable at high and low temperatures.’”) (citing Ex. 1003, 5:23–32).” slip op. at 22

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Level of Ordinary Skill in the Art Petitioner proposes that a person of ordinary skill in the art (“POSA” or “POSITA”) at the time of the invention “would have (1) at least a B.S. or equivalent degree; and (2) at least two years of experience in cosmetics formulations.” Pet. 24 (citing Ex. 1002 ¶¶ 27–28). Patent Owner does not dispute Petitioner’s proposal about the POSA’s qualifications. See generally PO Resp. We adopt and apply Petitioner’s proposed definition of a POSA, which is consistent with the level of skill reflected in the asserted prior art.” slip op. at 9

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

    “Patent Owner asserts that the preamble of independent claim 1 reciting “a deodorant stick” is limiting” as it provides antecedent basis for certain other claim elements, specifically, for the recitation of “said deodorant stick being free of an aluminum salt” and “said deodorant stick” having a particular hardness range. PO Resp. 8–9. Patent Owner also points to dependent claims 5–8 as relying on the preamble reciting “a deodorant stick” as antecedent basis for claim elements. Id. at 10. We agree.” slip op. at 8

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

    “We find that the evidence of record fails to support Patent Owner’s argument that the Lesniak fails to enable a stable deodorant stick. Rather, we are persuaded by Petitioner that Lesniak sufficiently teaches compositions with the relevant ingredients and achieves stable compositions through the use of a second wax having a melting point of 73 to 90° C. Pet. Reply 8 (citing Ex. 1003, 1:39–54). For example, Lesniak’s compositions (nos. 8 and 11) that used such a second wax, namely CastorWax MP80, are disclosed as sufficiently stable. Ex. 1003, Table 2. Here, we further credit the testimony of Dr. Michniak-Kohn that secondary wax, such as castor wax, with a sufficiently high melting point. Ex. 1003, 1:39-54, 5:23-32, Table 2. Both of the compositions (nos. 8 and 11) tested by Lesniak that had such a wax passed the stability tests. Ex. 1086 ¶ 7; see also Reply 8 (“Lesniak overcame any stability issues, as it expressly discloses compositions that are ‘physically stable at high and low temperatures.’”) (citing Ex. 1003, 5:23–32). Having considered the parties’ positions and evidence of record, summarized above, we determine that Lesniak provides sufficient disclosure to enable a person of ordinary skill in the art to formulate a deodorant stick within the parameters of claims 16 and 17. e) Conclusion as to Claims 16 and 17 We agree with Petitioner that “the challenged claims recite nothing more than well-known deodorant ingredients performing their conventional functions.” Pet. Reply 2. Therefore, for the reasons discussed above, we conclude that Petitioner has proved by a preponderance of evidence that Lesniak anticipates claims 16 and 17.” slip op. at 22

  Patent outcomesUS 10,905,647 unpatentable
  Claim construction§ 102 anticipation§ 103 obviousnesscites KSR · Graham
  Patents in suitUS 10,905,647

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.