• Shenzhen Xinzexing E-Commerce Co., Ltd. v. Shenzhen Carku Technology Co., Ltd.All claims unpatentable
  PTAB · Jul 24, 2025 · IPR2024-00222 · APJ Garth D Baer · IPR · Final written decision

  Claims 1–3, 6–23, and 25–33 are unpatentable, including as anticipated by Chen and as obvious over the Chen and Inskeep combinations.

  RulingsFinal written decision

  • Skill levelSkill level patent owner adoptedDecided for patent owner

    “have at least a Bachelor’s Degree in Electrical Engineering and at least two years of experience in the field of electrical engineering and specifically power supply management such as battery charging system design.” PO Resp. 31. Petitioner presents a similar formulation. Pet. 10. Although we do not discern any meaningful distinction between the parties’ formulations, we adopt Patent Owner’s description of a person of ordinary skill as it is consistent with the prior art and challenged patent’s specification. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001) (prior art itself may reflect an appropriate level of skill).” slip op. at 5

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

    “a first current through one or more output ports of the at least one output port in a first operating mode,” and “is configured to output a second current capable of starting a vehicle engine through the pair of output terminals in a second operating mode.” Ex. 1001, 8:25–34. Claim 21 has similar first and second operating-mode limitations. Id. at 9:40–46. Patent Owner proposes that “[t]he proper construction for ‘first operating mode’ is ‘an operating mode of the portable backup charger wherein the battery pack is configured to output a first current through one or more output ports of the at least one output port, and outputting a second current capable of starting a vehicle engine through the pair of output terminals is inhibited.’” PO Resp. 25. Similarly, Patent Owner argues “[t]he proper construction for ‘second operating mode’ is ‘an operating mode of the portable backup charger wherein the battery pack is configured to output a second current capable of starting a vehicle engine through the pair of output terminals, and outputting a first current through one or more output ports of the at least one output port is inhibited.’” Id. at 27. Patent Owner asserts that claim differentiation supports its construction because dependent claim 3 recites “a third operating mode for outputting the first current and the second current simultaneously,” and “if the battery pack could output the first current and the second current simultaneously in the first operating mode, then there would be no difference between the claimed first operating mode and the claimed third operating mode.” Id. at 26. We disagree with Patent Owner’s constructions because, as Petitioner explains, they wrongly import current-inhibiting limitations beyond the plain language in the claim. Pet. Reply 1. Nothing in the at-issue language addresses inhibiting current. In addition, the claimed first and third operating modes are still distinct without importing additional limitations because outputting just the first current is sufficient for the first operating mode, but not for the third. In other words, whereas the third operating mode requires simultaneity, the first and second merely permit it. Thus, claim differentiation does not support Patent Owner’s construction. Last, although Patent Owner asserts that its construction “is consistent with the specification,” nothing in the cited passages describes inhibiting current. Prelim. Resp. 26 (citing Ex. 1001, 4:30–33, 5:30–33, 5:58–62). Instead, the specification characterizes the modes solely by what the portable charger “can output,” not what is inhibited. Ex. 1001, 4:30–33, 5:30–33, 5:58–62. Thus, we decline to read the first and second operating modes to require the current-inhibiting features that Patent Owner asserts.” slip op. at 6

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

    “Patent Owner argues the two current paths are not different because Chen’s Figure 1 shows they overlap between the lithium battery and the output control circuit and “only diverge when making the connection to the output control circuit.” PO Resp. 32. We disagree. First, Patent Owner’s argument is based on a claim construction for “different” current paths that we do not adopt for the reasons above. In addition, we agree with Petitioner that Chen shows the claimed different current paths even under Patent Owner’s construction. Pet. Reply 8–12. Specifically, as Petitioner explains, a skilled artisan would recognize that Chen’s physical circuits are depicted in Figures 4–7, rather than in Chen’s Figure 1, which is merely a “block diagram of the principle of present invention.” Id. at 9; Ex. 1006 ¶ 15. Unlike Figure 1, Chen’s Figures 5, 6, and 7 show current paths between the battery and USB outputs, and between the battery and DC multi-gear output, that do not overlap with the high current path shown in Chen’s Figure 4. Pet. 9–12. Based on Petitioner’s analysis and for the reasons above, we agree with Petitioner that Chen teaches the claimed “pair of output terminals coupled to the battery pack and having a current path to the battery pack different from that of the at least one output port to the battery pack.”” slip op. at 10

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

    “Patent Owner asserts one skilled in the art would not have added White’s fuse to Chen because doing so was “unnecessary” given Chen’s built-in relay K1 that already provides protection. PO Resp. 42–43. We disagree because, as Petitioner notes, “the Petition cited ample evidence that both layers of over current prevention provide improved safety and protection to the battery.” Pet. Reply 17 (citing Pet. 31–33); see also, e.g., Pet. 31 (describing “advantageously reduc[ing] the likelihood of damage”), id. at 32 (describing “the additional benefit of a safety fuse along a jumper cable to promptly cut off current in the event of a short circuit” and “more simplified maintenance and repair”). Given Petitioner’s unrebutted rationale, Petitioner has articulated sufficient reasoning with rational underpinning to support the legal conclusion that adding White’s fuse and polarity-protection connector to Chen’s power-supply system would have been obvious to one of ordinary skill in the art. See KSR Int’l Co. v. Teleflex Inc., 550 U.S. 398, 418 (2007). Other than the arguments addressed above, Patent Owner does not additionally challenge Petitioner’s obviousness showing based on Chen and White. We have reviewed Petitioner’s arguments and evidence and, based on that analysis, we find Petitioner has shown by a preponderance of the evidence that claims 1, 2, 6–9, 11–14, 16–22, 25–28, and 30–33 would have been obvious over Chen and White.” slip op. at 15

  Patent outcomesUS 9,643,506 unpatentable
  Claim construction§ 102 anticipation§ 103 obviousnesscites KSR
  Patents in suitUS 9,643,506
• Jiangsu Favored Nanotechnology Co., Ltd. v. P2i Ltd.All claims unpatentable
  PTAB · Apr 11, 2025 · IPR2024-00380 · APJ Sheldon M Mcgee · IPR · Final written decision

  Claims 1–5, 7, and 9–14 are unpatentable as obvious over Cohen and Legein or Francesch and Legein; Petitioner’s motion to strike is denied as moot.

  RulingsFinal written decision

  • Skill levelSkill level board ownDecided for petitioner

    “The parties agree that a person of ordinary skill in the art in the field of the ’087 patent in June 20154 “would have had at least a bachelor’s degree in a field such as chemistry, physics, or chemical engineering, as well as at least two years of experience with plasma-polymerization techniques.” Pet. 20 (citing Ex. 1002 ¶¶ 22–29); PO Resp. 13 (Patent Owner stating that it “does not dispute this characterization of the level of ordinary skill in the art.”); see also PO Sur-reply 1–2 (noting both parties’ agreement on the education and experience level of the ordinarily skilled artisan).” slip op. at 7

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

    “On the fully developed trial record, we determine that no claims need an express construction. See Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co. Ltd., 868 F.3d 1013, 1017 (Fed. Cir. 2017) (holding that only claim terms in controversy need to be construed, and only to the extent necessary to resolve the controversy (citing Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999))).” slip op. at 9

  • Expert testimonyPetitioner expert creditedPatent owner expert discountedDecided for petitioner

    “Because of Patent Owner’s shifting definitions of the education and experience level of the ordinarily skilled artisan, it is unclear on the complete record what precise definition Patent Owner and Dr. Senkevitch are applying when arguing the skilled artisan’s capabilities. PO Resp. 13, 22–27, 31–32, 34–40; PO Sur-reply 1–6, 11–13; Ex. 2007 ¶¶ 30, 31, 33, 34, 37, 40, 52–55, 60, 68, 74, 76, 77, 80–86, 89, 91, 94, 95, 100, 102–105, 108, 110, 111, 113–116, 118–120, 122, 124, 127–134. We, therefore, give Dr. Senkevitch’s testimony regarding the capabilities of a person of ordinary skill in the art minimal weight, which leaves us with Patent Owner’s insufficiently supported arguments regarding the skilled artisan’s capabilities. PO Resp. 13, 22–27, 31–32, 34–40; PO Sur-reply 1–6, 11–13. Moreover, as Petitioner correctly points out, the ʼ087 patent expressly teaches that the precise conditions for forming a protective polymeric coating “will vary depending upon factors such as, without limitation, the nature of the monomer compound, the crosslinking agent, the substrate, as well as the desired properties of the coating” and that such “conditions can be determined using routine methods.” Ex. 1001 15:1–15:5 (emphasis added); Pet. Reply 17. Where the patent itself leaves to the judgment of an ordinarily skilled artisan the assessment of these factors to ascertain suitable conditions for forming the protective coating, we find persuasive Petitioner’s view that it would have been well within the level of ordinary skill to ascertain such suitable conditions.” slip op. at 20

  • Obviousness (§103) › Analogous artAnalogous artDecided for petitioner

    “We disagree with Patent Owner. Although the claims of the ʼ087 patent recite obtaining the protective cross-linked polymeric coating “by exposing the device or component to a plasma,” the field of endeavor analysis in an analogous art inquiry does not exclusively turn on the claims at issue, but rather takes account of the entirety of a patent’s disclosure. See In re Bigio, 381 F.3d 1320, 1326 (Fed. Cir. 2004) (explaining that “the PTO must show adequate support for its findings on the scope of the field of endeavor in the application’s written description and claims” (emphasis added)); In re Mettke, 570 F.3d 1356, 1359 (Fed. Cir. 2009) (rejecting an argument that the field of endeavor was limited to a claimed “Internet terminal” when “the specification describes various communication media, including facsimile machines and email, as related to the invention.”). This is significant here because the ʼ087 patent discloses that “[t]he … invention relates to protective coatings” and specifically “relates to protective coatings for electronic or electrical devices and components thereof, and methods of forming such coatings.” Ex. 1001, 1:14–17. Based on this disclosure, we find that the ʼ087 patent’s field of endeavor relates to “protective coatings for electronic or electrical devices and components thereof” broadly, not just those formed on such devices or components via a plasma polymerization process as asserted by Patent Owner. Id. Although Cohen does not explicitly disclose that its crosslinked polymers constitute a “protective coating,” Cohen does disclose that its “copolymerizable mixture can be cast into films” (Ex. 1004, 2:61–62), that the polymerization can “effected in situ,” and that the polymers may be used in “numerous” electrical applications (id. at 5:17–25). Tr. 8:9–10:2, 27:2– 21; see Pet. Reply 5 (explaining how “Cohen described insulating polymers that could be applied as films and be used to protect substrates including cables and electrical coils.” (citing Ex. 1004, 2:60–63, 5:13–25)). These disclosures suggest strongly that Cohen’s crosslinked polymers––if cast into a film or formed in situ on an electrical device or component––would serve as a protective coating on that electrical device or component, even though Cohen does not expressly refer to its crosslinked polymers ipsis verbis as a “protective coating.” Thus, we find that Cohen is within the field of endeavor of the ʼ087 patent.” slip op. at 15

  Patent outcomesUS 11,041,087 unpatentable
  Claim construction§ 103 obviousnesscites KSR · Graham
  Patents in suitUS 11,041,087
• Symrise AG / Symrise Inc. v. Inolex Investment CorporationAll claims unpatentable
  PTAB · Nov 1, 2024 · IPR2023-01035 · APJ Tina E Hulse · IPR · Final written decision

  The Board granted cancellation of claims 1–6, 8–10, and 22–28, and denied substitute claims 29–44 because Wright ’451 rendered them obvious.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Petitioner contends that a person of ordinary skill in the art at the time of the invention (“POSA” or “POSITA”) would have had “a bachelor’s degree and two or more years of experience or a master’s degree in organic synthesis or chemical engineering, with education substituting for experience and vice versa.” Pet. 15 (citing Ex. 1002 ¶ 16). Patent Owner took no position on the level of ordinary skill in the art in its Preliminary Response. Prelim. Resp. 8. In our Institution Decision, we adopted Petitioner’s definition. Dec. Inst. 6–7. In its Motion to Amend, Patent Owner states that it accepts the Board’s definition for purposes of this proceeding. MTA 24. We, therefore, see no reason to disturb our definition of the level of ordinary skill in the art as it appears to be consistent with 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 8

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

    “Although neither party expressly proposes a construction for the term “conversion,” the parties appear to differ in their interpretations of that term. Petitioner interprets “conversion” to mean the percent conversion of the 1- alcohol. See Pet. Opp. RMTA 6–7 (interpreting “conversion” as percentage of remaining 1-alcohol); Ex. 1040, 109:2–11. Patent Owner, on the other hand, interprets “conversion” to mean the total percentage of alkenes that have been produced. Ex. 2010 ¶ 123 (interpreting “conversion” as percentage of total alkenes). During oral argument, counsel for Patent Owner conceded that “conversion can mean either.” Tr. 27:18–28:13. Without the benefit of briefing by the parties, we decline to expressly construe the term “conversion,” as our Decision would be the same under either interpretation, as discussed further below. See Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 868 F.3d 1013, 1017 (Fed. Cir. 2017) (finding only those terms that are in controversy need be construed, and only to the extent necessary to resolve the controversy). Moreover, we do not find it necessary to expressly construe any other claim terms for purposes of this Decision. Id.” slip op. at 10

  • Obviousness (§103) › Graham factors (scope of art, differences, level of skill)UnpatentableUnpatentable

    “2. Analysis A patent claim is unpatentable under 35 U.S.C. § 103 if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which said claimed invention pertains. See also KSR Int’l Co. v. Teleflex Inc., 550 U.S. 398, 406 (2007). The question of obviousness is resolved on the basis of underlying factual determinations, including (1) the scope and content of the prior art; (2) any differences between the claimed subject matter and the prior art; (3) the level of skill in the art; and (4) objective evidence of nonobviousness. Graham v. John Deere Co., 383 U.S. 1, 17–18 (1966). Objective evidence of nonobviousness may include” slip op. at 13

  • Obviousness (§103) › Objective indicia / secondary considerationsObjective indicia outweighedDecided for petitioner

    “We are not persuaded. “[A]ny superior property must be unexpected to be considered as evidence of non-obviousness.” Pfizer, Inc. v. Apotex, Inc., 480 F.3d 1348, 1371 (Fed. Cir. 2007). We must, therefore, first consider what results were expected to determine what a POSA would have considered to be unexpected. Id. As seen by the table below, Wright ’451’s disclosure fully encompasses the temperature ranges and purported unexpected results recited by substitute claim 29 and shown in Table 2 of the ’048 Patent: Reference Reaction Calcination Conversion Regioselectivity Rate13 Temperature Temperature Wright ’451 about 220 °C about 200 °C greater than about 90% to to about to 600 °C about 95% about 99% 440 °C Substitute 240 °C to about 420 °C at least 95% to about Claim 29” slip op. at 23

  Patent outcomesUS 10,995,048 unpatentable
  Claim construction§ 103 obviousnesscites Phillips · KSR
  Patents in suitUS 10,995,048
• Eden Park Illumination, Inc. / Larson Electronics LLC et al. v. S. Edward NeisterAll claims unpatentable
  PTAB · Sep 17, 2024 · IPR2023-00695 · APJ Julia Heaney · IPR · Final written decision

  Claims 1–5 and 7–18 are unpatentable as obvious over Eckhardt and Sosnin.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “B. Level of Ordinary Skill in the Art Petitioner argues a person of ordinary skill in the art at the time of the invention “would have had at least a bachelor’s degree in an engineering discipline such as biological, chemical, environmental, electrical, mechanical, and/or systems engineering, or an equivalent degree such as one in physics or similar subject matter.” Pet. 16 (citing Ex. 1003 ¶ 21). Petitioner further argues that “[s]uch a person would also have two to three years of work or research experience with UV disinfection technology and/or systems and would be familiar with the fundamentals of UV excimer lamps” but, “less education could be compensated by more experience and vice versa.” Id. 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 ’951 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 ’951 patent and the” slip op. at 7

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

    “art references advanced in this Petition” but “[b]eyond these arguments, the challenged claims require no express construction to evaluate their patentability.” Pet. 16–17. After considering the arguments and information Petitioner presents, we determine that we do not need to expressly construe any 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 7

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

    “Petitioner demonstrates by a preponderance of the evidence that a person of ordinary skill in the art would have had reasons to combine Eckhardt’s teaching of narrow spectrum UV light in the range of 220 to 310 nm to disinfect skin (Ex. 1004 ¶¶ 31, 69–70), with Sosnin’s teaching of a KrCl excimer lamp having a narrow band UV emission at 222 nm to kill bacteria (Ex. 1005, 320). In particular, Petitioner shows that a person of ordinary skill in the art would have wanted to obtain the benefits of Eckhardt’s teaching of disinfecting skin using any light source capable of sterilization or disinfection and would therefore have considered Eckhardt’s suggestion of using narrow spectrum UV light in combination with Sosnin’s disclosure of using germicidal excimer lamps within the range of wavelengths taught by Eckhardt. See KSR, 550 U.S. at 417 (stating that the “mere application of a known technique to a piece of prior art ready for the improvement” suggests obviousness). The teachings of both Eckhardt and Sosnin support Petitioner’s combination. In particular, both references teach using UV lamps with narrow bands or monochromatic emissions to sterilize surfaces. Eckhardt teaches “light source 7 may be any light source that emits light capable of sterilization or disinfection” and may be a UV light source such as a lamp that “may emit narrow spectrum light (e.g., a line spectrum) or broad spectrum light” including UVA, UVB, and UVC light. Ex. 1004 ¶ 31. Eckhardt also teaches flash light source 7a generates a flash sufficient for sterilization or disinfection and may be a xenon flash lamp having a wavelength in the range of 220 to 310 nm. Id. ¶¶ 43, 70. Additionally, Eckhardt teaches “[t]he sterilization/disinfection units previously described are designed to have a beneficial effect when used on bare skin.” Id. ¶ 69. Sosnin teaches using excimer lamps for sterilization and specifically discloses a KrCl lamp which generates photons having wavelengths of 222 nm. Ex. 1005, 320. We find that Eckhardt would have led a person of ordinary skill to consider using a 222 nm excimer lamp because that wavelength falls within the range of UV light (220–310 nm) suggested by Eckhardt, and the range known to provide disinfection. Ex. 1004 ¶ 70; Ex. 1005, 320 (describing “the high rate of bactericidal effect of excilamps”). We find that Eckhardt also supports Petitioner’s contention that it was within the knowledge of a person of ordinary skill in the art to use UV light in the range of 254 nm for disinfection, even though that wavelength presented safety concerns. Ex. 1004 ¶¶ 54, 56; see Pet. 25.” slip op. at 12

  • Obviousness (§103) › Graham factors (scope of art, differences, level of skill)UnpatentableUnpatentable

    “Based on the evidence before us, we determine that Petitioner has shown by a preponderance of evidence that the combination of Eckhardt and Sosnin discloses claim limitation [1A]. We find that Eckhardt’s disclosure of a lamp emitting sterilizing light in the range of 220 to 310 nm (Ex. 1004 ¶¶ 31, 43, 70), combined with Sosnin’s disclosure of irradiation of E. coli with a KrCl excimer lamp generating a 222 nm wavelength (Ex. 1005, 320, Fig. 3), which correspond to peak absorption wavelengths of DNA or RNA (Ex. 1003 ¶¶ 116–118), discloses limitation [1A]. [1B] Petitioner contends that the Eckhardt-Sosnin combination teaches “directing the photons to a substance or surface to be disinfected, whereby the photons are generated to destroy a plurality of chemical bonds within the proteins, DNA, or RNA of the microorganism,” as recited in limitation [1B]. Pet. 30. According to Petitioner, Eckhardt discloses directing light towards wound 1 and surrounding skin 3. Id. (citing Ex. 1003 ¶ 120; Ex. 1004 ¶¶ 31–32). Petitioner contends Sosnin teaches the photons destroy a plurality of chemical bonds within the DNA or RNA of the microorganism because it discloses using 222 nm radiation, “which intrinsically destroys proteins and the chemical bonds in the proteins associated with the DNA or RNA of the microorganism.” Id. (citing Ex. 1003 ¶ 121; Ex. 1005, 319– 321). Based on the evidence before us, we determine that Petitioner has shown by a preponderance of evidence that the combination of Eckhardt and Sosnin discloses claim limitation [1B]. We find that Eckhardt’s disclosure of directing sterilizing light in the range of 220 to 310 nm toward a surface to be disinfected (Ex. 1004 ¶¶ 31–33, 43, 70), combined with Sosnin’s disclosure of bacterial survival curves resulting from irradiation of E. coli with KrCl excimer lamps (Ex. 1005, 320, Fig. 3), discloses claim limitation [1B]. [1C] Petitioner contends that the combination of Eckhardt and Sosnin” slip op. at 16

  Patent outcomesUS 11,246,951 unpatentable
  Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 11,246,951
• Forte Biosciences, Inc. v. University Of MassachusettsAll claims unpatentable
  PTAB · Jun 24, 2024 · PGR2023-00014 · APJ Georgianna W Braden · PGR · Final written decision

  Claims 1–5 are unpatentable for lack of written description and enablement under § 112(a); the Board did not reach the § 103 challenge.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Patent Owner does not contest Petitioner’s proposed definition, except to modify the level such that an ordinarily skilled artisan “would have been familiar with well-known inhibitors of IL-15 and IL-15R as described in the ’505 patent and recognized in the art as of April 2017.” Resp. 26–27 (citing Ex. 2005 ¶ 94). We adopt Petitioner’s level of ordinary skill in the art with Patent Owner’s proposed modification because it appears consistent with the problems addressed in the ’505 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 patent owner

    “this stage of the proceeding and that all terms are to given their plain and ordinary meaning. Pet. 23; Resp. 38. We agree. Construction is needed only for those terms “that are in controversy, and only to the extent necessary to resolve the controversy.” See Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 868 F.3d 1013, 1017 (Fed. Cir. 2017) (quoting Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999)). Here, we determine that no claim construction is necessary.” slip op. at 8

  • Disclosure Requirements (§112) › Written description (Ariad)Written description inadequateUnpatentable

    “Finally, we are reminded that “a sufficient description of the genus . . . requires the disclosure of either a representative number of species falling within the scope of the genus or structural features common to the members of the genus so that one of skill in the art can ‘visualize or recognize’ the members of the genus.” Ariad, 598 F.3d at 1350. “[F]unctional claim language can meet the written description requirement when the art has established a correlation between structure and function.” Id. Here, however, the challenged claims are directed to methods using a wide range of different types of compounds purported to be “IL-15/IL-15R inhibitors” that are not part of a known or readily identifiable class, do not target the same biological pathway, do not have any common structural features, and do not appear to always function as inhibitors. See Ex. 1018, Abstr., 1575–77, 1579; Ex. 1046, 189:4–19, 191:15–192:15, 193:18–196:22, 198:21–199:21, 197:12–198:19, 200:1–8, 207:11–14, 203:3–10, 207:15–21, 236:12–24; Ex. 1047 ¶¶ 19–23, 56, 63–64, 80–85. Therefore, we find there is neither a representative number of species disclosed, nor a sufficient” slip op. at 21

  • Disclosure Requirements (§112) › Enablement (Wands, Amgen full scope)Not enabledUnpatentable

    “598 U.S. at 610. A “specification may call for a reasonable amount of experimentation to make and use a patented invention. What is reasonable in any case will depend on the nature of the invention and the underlying art.” Id. at 613. But the person of ordinary skill in the art cannot be left with merely “a hunting license” or obligated to engage in “painstaking experimentation” or “trial and error” to “see what works.” Id. at 614. Patent Owner argues that “the IL-15/IL-15R inhibitors disclosed in the specification were known in the art and “share the common ‘general quality’ of inhibiting a pathway known to be relevant to and having ‘particular fitness for the particular purposes’ of (id.) treating certain autoimmune diseases by blocking IL-15 signaling.” Sur-reply 14 (citing Ex. 1011, 22; Ex. 2013, 3; Ex. 2017, Abstr.; Ex. 2024, 17; Ex. 2025, 2–3, 6; Ex. 2027, 4; Ex. 2028, 9; Ex. 2029, 4; Ex. 2031, 23; Ex. 2118, 53:22–54:9; Ex. 1018, 1; Ex. 2005, ¶¶ 52–63, 80–83, 130; Ex. 1046, 231:20–25). Patent Owner’s argument is unavailing, however, because the record shows that different IL-15-specific inhibitors may operate in different ways that may result in differential effects, some of which may not include inhibition at all. See Ex. 1047 ¶¶21, 23, 40, 71; Ex. 1018, Abstr., 1576, 1579; Ex. 2013, 4:1– 8; Ex. 2014, 4:9–15; Ex. 2015 ¶ 22; Ex. 2025, 4:34–5:2; Ex. 1046, 166:21– 24, 168:25–169:5, 207:23–209:22, 210:4–17, 210:24–211:6; Ex. 1011, 1:67–2:4; Ex. 2005 ¶¶ 116, 134. Thus, we find that the record supports Drs. Abbas and Plott’s testimony, which we credit, that a person of ordinary skill in the art would be forced to hunt down and test every compound through painstaking Ex. 1002 ¶¶ 85–90, 92; Ex. 1047 ¶ 53 (Dr. Plott’s testimony that the “specification of the ’505 patent is essentially a black box (so far as which aspects of IL-15 signaling it inhibits and how it operates), leaving the reader to guess through trial and error which molecules might operate similarly to ChMBC7 and which do not.”); Ex. 1004 ¶ 61 (Dr. Plott’s testimony that “from the perspective of a clinician, the amount of experimentation required would be extremely burdensome and success would be speculative.”); Ex. 2007, 93:16–97:25, 38:208; Ex. 1046, 234:20–236:11. This is due to the fact that the claims (without limit) encompass any inhibition of any one of the various types of IL-15 signaling and various versions of the receptor, and even implicate other compounds that act on different targets but which inhibit the IL-15 signaling pathway. See Ex. 1047 ¶¶ 10, 53, 68; Ex. 2005 ¶ 71; Ex. 1046, 254:4–255:11, 158:12–160:20. The evidence has shown that IL-15/IL-15R inhibition is complicated and unpredictable, with some inhibitors also capable of enhancing forms of IL-15 signaling rather than preventing it. See Ex. 1047 ¶¶ 10, 25–26, 53; Ex. 2013, 2:10–18; Ex. 2014, 2:12–20; Ex. 2015 ¶ 3; Ex. 2025, 2:10–18; Ex. 2078, 267.” slip op. at 32

  Patent outcomesUS 11,278,505 unpatentable
  Claim construction§ 112 disclosurecites Phillips
  Patents in suitUS 11,278,505
• Samsung Bioepis Co. Ltd. v. Regeneron Pharmaceuticals, Inc.All claims unpatentable
  PTAB · Jun 14, 2024 · IPR2023-00442 · APJ John G New · IPR · Final written decision

  Claims 1, 3–11, 13, 14, 16–24, and 26 are unpatentable as obvious over Dixon because Dixon anticipates them.

  RulingsFinal written decision

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

    “We adopt the same reasoning here, and conclude that the evidence of record and the Specification of the ’681 patent support construing the preamble’s recitation of a “method for treating a patient with an angiogenic eye disorder” as meaning administering a compound, i.e., the recited VEGF antagonist, to a patient for the purpose of improving or providing a beneficial effect in their angiogenic eye disorder. We find that, as in Eli Lilly & Co. v. Teva Pharms. Int’l GmbH, although the claims “encompass a clinical result, they do not require such a result.” (emphasis added). 8 F.4th 1331, 1343 (Fed. Cir. 2021). We consequently reject Patent Owner’s proposed construction that the language of the preamble reciting a “method for treating an angiogenic eye disorder” requires not only an intent to treat, but, additionally, a high degree of efficacy on par with monthly Lucentis. See PO Resp. 9–10.” slip op. at 17

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

    “We adopt Petitioner’s proposed construction of the claim terms “initial dose,” “secondary dose,” and “tertiary dose.” Petitioner proposes adoption of the definitions expressly set forth in the Specification of the ’681 patent, viz., that the initial dose is the dose “administered at the beginning of the treatment regimen,” and is followed by the secondary doses that are “administered after the initial dose,” and the tertiary doses are “administered after the secondary doses” and may be distinguished from the secondary doses “in terms of frequency of administration.” Ex. 1001, col. 3, ll. 36–44. Patent Owner does not expressly dispute Petitioner’s construction, other than to argue that, by 2011, a person of ordinary skill in the art would have understood “initial” and “secondary” doses to correspond to loading doses and “tertiary” doses to correspond to maintenance doses. PO Resp. 13 (citing Ex. 2056 ¶ 66; Ex. 2349, 6–11. Patent Owner contends that the purpose (and expected effect) of loading doses was to achieve visual acuity gains and retina drying, and the goal of less frequent maintenance doses was to maintain the efficacy achieved with loading doses. Id. at 14 (citing Ex. 2056 ¶ 66). As we have explained above, we do not find persuasive Patent Owner’s argument that the definition of these terms requires a high, or otherwise defined, degree of efficacy. As we stated in the -00881 and -01225 Decisions: Based on those express definitions in the Specification, we do not find cause to construe the terms differently. In particular, we do not find that the Specification requires the “tertiary doses” to maintain any efficacy gain achieved after the initial and secondary doses, or that the term suggests any specific level of efficacy. The Specification unequivocally states that “[t]he terms ‘initial dose,’ ‘secondary doses,’ and ‘tertiary doses,’ refer to the temporal sequence of administration of the VEGF antagonist.”” slip op. at 18

  • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)Term construed board ownDecided for patent owner

    “If a claim limitation is directed to printed matter, the second step of the Praxair analysis is to determine whether the printed matter is functionally related to its “substrate.” Praxair, 890 F.3d at 1032. Printed matter that is functionally related to its substrate is given patentable weight. Id. (citing DiStefano, 808 F.3d at 850). However, “[w]here the printed matter is not functionally related to the substrate, the printed matter will not distinguish the invention from the prior art in terms of patentability.” Id. (quoting In re Ngai, 367 F.3d 1336, 1339 (Fed. Cir. 2004)). More specifically, printed matter is functionally related to its substrate when the language changes not mere thoughts or outcomes, but provides action steps that the method requires. See C R Bard Inc. v. AngioDynamics, Inc., 979 F.3d 1372, 1381 (Fed. Cir. 2020) (holding that the test for printed matter is whether it “merely informs people of the claimed information, or whether it instead interacts with the other elements of the claim to … cause a specific action in a claimed process.”); see also Bristol-Myers Squibb Co. v. Ben Venue Laboratories, Inc., 246 F.3d 1368, 1376 (Fed. Cir. 2001) (stating that language “is only a statement of purpose and intended result” where its “expression does not result in a manipulative difference in the steps of the claim”) (emphasis added).” slip op. at 21

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “A Person of Ordinary Skill in the Art Petitioner notes that the Petitioner in the ’00881 IPR proposed that a person of ordinary skill in the art would have: (1) knowledge regarding the diagnosis and treatment of angiogenic eye disorders, including the administration of therapies to treat said disorders; and (2) the ability to understand results and findings presented or published by others in the field. Pet. 17–18 (quoting -00881 IPR, Paper 94 at 9–10). Furthermore, it was asserted that such a person would typically have an advanced degree, such as an M.D. or Ph.D. (or equivalent, or less education but considerable professional experience in the medical, biotechnological, or pharmaceutical field), with practical academic or medical experience in (i) developing treatments for angiogenic eye disorders, including through the use of VEGF antagonists, or (ii) treating of same, including through the use of VEGF antagonists. Id. at 18 (citing -00881 IPR Paper 94 at 10). Patent Owner does not expressly contest this definition of a person of ordinary skill in the art in its Response. In the -01225 IPR, we adopted the same definition of a person of ordinary skill in the art for the challenged claims of the ’681 patent, concluding that that definition was consistent with the level of skill in the art. See -01225 IPR, Paper 96 at 52–53. Having previously adopted this definition of the level of skill in the art for the claims of the ’681 patent, we do so again in the present proceeding.” slip op. at 25

  Patent outcomesUS 10,130,681 unpatentable
  Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 10,130,681
• Foresight Diagnostics, Inc. v. Personalis, Inc.All claims unpatentable
  PTAB · Jun 12, 2024 · IPR2023-00317 · APJ Robert A Pollock · IPR · Final written decision

  Claims 1–23 are unpatentable: claims 1–7 and 10–23 as anticipated by Forshew, and claims 1–23 and 1–9 and 11–23 as obvious over Forshew with Wagle and Wagle with Chan, respectively.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Patent Owner has not subsequently challenged the above definition. See Ex. 2031 ¶ 48 (Dr. Furneaux applying the above definition). For the reasons set forth in our Institution Decision, and because Petitioner’s proposed level is commensurate with the level of skill reflected in the prior art of record, we apply the same definition here. 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). C. Claim Construction” slip op. at 10

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

    “adopt Petitioner’s proposed definition of “capture probes” as encompassing at least, “PCR primer capture probes and solution-based hybridization capture probes (e.g., biotinylated oligonucleotide baits).” See DI 18–24. For the reasons set forth in our Institution Decision, and as further addressed below, we apply that definition here—albeit with a minor modification in wording. In particular, we credit Patent Owner’s argument that the phrase “PCR primer capture probe” is not a recognized term of art and its use in our construction “would improperly inject ambiguity into the claim.” POR 58– 59 (citing, e.g., Ex. 2018, 166:10–169:1, 171:16–175:2; Liquid Dynamics Corp. v. Vaughan Co., 355 F.3d 1361, 1367 (Fed. Cir. 2004)). Although we recognize Petitioner’s use of “PCR primer capture probe” as a shorthand for its position that, as read in light of the Specification, PCR primers are a species of, and/or indistinguishable from, the genus of capture probes, Patent Owner’s point is well taken. Accordingly, we clarify the meaning of “capture probes,” as used in the instant Specification, to encompass PCR primers and solution-based hybridization capture probes (e.g., biotinylated oligonucleotide baits). We do not view this modification as altering the substance of our provisional construction or the analysis in our Institution Decision.” slip op. at 11

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

    “Ex2112, slide 5 for the ‘plurality of capture probes’ limitation of step 1(a),” Petitioner contends that its “bare reference to ‘pullout’” suggests at most, “that by May 2012, Mr. West contemplated that a particular type of capture probe would be among many other ‘lab solutions’ for addressing accuracy.” Reply 7–8; see Ex. 1225 ¶¶ 123–126. In this respect we note Mr. West’s testimony that he understood “pullout” in Slide 5, as a reference to Agilent SureSelect biotinylated probe system. See Ex. 1222, 83:8–85:22, 88:7–16. We, nevertheless, find persuasive Dr. Quackenbush’s testimony that “a POSA reviewing Slide 5 in light of the overall record on conception would have insufficient information to determine how, specifically, Personalis intended to use the ‘Pullout,’ other than that their purpose was to provide a laboratory solution to improve the accuracy of 2012 sequencing technology in some way.” Ex. 1225 ¶ 125. Considering the evidence of record, we credit Dr. Quackenbush’s testimony that a person of ordinary skill in the art reading Personalis’ conception exhibits, including Exhibit 2112, “would have found, at most, an incipient research project for improving the accuracy of sequencing technology that would involve the use of an undefined combination of various conventional techniques.” Ex. 1225 ¶ 128. In addition to Dr. Quackenbush’s testimony as to claim steps involving capture probes (elements 1(a)–1(c)), we further find persuasive his testimony that Patent Owner provides no corroboration of the conception of steps 1(d)–1(f), which require assaying samples obtained from the same individual obtained at different time points. See id. ¶¶ 120–121, 126–127; Reply 9–10; Sur-Reply 6–8 (citing, e.g., Ex. 2032 ¶¶ 91–134; Ex. 2109; Ex. 2112; Ex. 2036). In sum, we find that Personalis’ exhibits and related testimony do not evidence sufficient conception of the invention set forth in the challenged claims. See, e.g., Ex. 1225 ¶¶ 120–128 (Dr. Quackenbush’s testimony about missing aspects of the claims in Patent Owner’s proofs, such that the “completed thought” is not shown).15 Considering the above, we find that Patent Owner has not satisfied the burden of establishing that its claimed invention is entitled to a priority date that precedes either of the respective publication dates of Forshew and Chan. Accordingly, Forshew and Chan qualify as prior art to the ’033 patent.” slip op. at 31

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

    “In Section II.C. above, we construe “capture probes,” as used in the instant Specification, to encompass PCR primers and solution-based hybridization capture probes (e.g., biotinylated oligonucleotide baits). Accordingly, in disclosing the use of PCR primers, Forshew discloses “capture probes,” as would have been understood by one of ordinary skill reading the ’033 Specification. See Pet. 29–33 (citing Ex. 1020 ¶¶ 117–122; Ex. 1030, 2–3). Forshew further satisfies the “plurality of capture probes” “COSMIC: mining complete cancer genomes in the Catalogue of Somatic Mutations in Cancer,” 39 NAR D945-950 (2011)). limitation in disclosing the use of PCR primers for the detection and monitoring of cancer-associated alleles. See, e.g, id.; Ex. 1020, 3 (“We designed 48 primer pairs to amplify 5995 bases of genomic sequence covering coding regions (exons and exon junctions) of TP53 and PTEN, and selected regions in EGFR, BRAF, KRAS, and PIK3CA (table S1) by overlapping short amplicons (Fig. 1A).”). For the reasons set forth above, Petitioner has sufficiently shown that Forshew discloses “capture probes” and “a plurality of capture probes,” as would have been understood by one of ordinary skill reading the ’033 Specification.” slip op. at 36

  Patent outcomesUS 11,408,033 unpatentable
  Claim construction§ 102 anticipation§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 11,408,033
• Foresight Diagnostics, Inc. v. Personalis, Inc.All claims unpatentable
  PTAB · Jun 12, 2024 · IPR2023-00224 · APJ Robert A Pollock · IPR · Final written decision

  Claims 1–19 are unpatentable as obvious over Leary, Chan, and Liao; the Board also found claims 1–11 and 13–19 unpatentable over Leary.

  RulingsFinal written decision

  • Skill levelDecided for petitioner

    “B. Level of Ordinary Skill in the Art” slip op. at 10

  • Obviousness (§103) › Objective indicia / secondary considerations › NexusObjective indicia no nexusDecided for petitioner

    “7. Objective Indicia of Non-Obviousness Objective indicia of non-obviousness may include long-felt but unsolved need, failure of others, unexpected results, commercial success, copying, licensing, industry praise, and expert skepticism. Mintz v. Dietz & Watson, Inc., 679 F.3d 1372, 1379 (Fed. Cir. 2012). “[O]bjective indicia ‘may often be the most probative and cogent evidence of nonobviousness in the record,’” and “help turn back the clock and place the claims in the context that led to their invention.” Id. at 1378. Evidence of objective indicia of non-obviousness “must always when present be considered en route to a determination of obviousness.” Transocean Offshore Deepwater Drilling, Inc. v. Maersk Drilling USA, Inc., 699 F.3d 1340, 1349 (Fed. Cir. 2012); see also Apple Inc. v. Samsung Elecs. Co., 839 F.3d 1034, 1048 (Fed. Cir. 2016) (en banc). Such evidence, however, does not necessarily control the obviousness conclusion. See, e.g., Pfizer, Inc. v. Apotex, Inc. 480 F.3d 1348, 1372 (Fed. Cir. 2007). (“Here, the record establishes such a strong case of obviousness that Pfizer’s alleged unexpectedly superior results are ultimately insufficient.”)” slip op. at 53

  • Obviousness (§103) › Motivation to combine / reasonable expectation of successUnpatentableUnpatentable

    “account not only specific teachings of the reference but also the inferences which one skilled in the art would reasonably be expected to draw therefrom.” In re Preda, 401 F.2d 825, 826 (CCPA 1968). Moreover, a precise teaching directed to the specific subject matter of a challenged claim is not necessary to establish obviousness. KSR, 550 U.S. at 418. Rather, “any need or problem known in the field of endeavor at the time of invention and addressed by the patent can provide a reason for combining the elements in the manner claimed.” Id. at 420. Accordingly, a party that petitions the Board for a determination of unpatentability based on obviousness must show that “a skilled artisan would have been motivated to combine the teachings of the prior art references to achieve the claimed invention, and that the skilled artisan would have had a reasonable expectation of success in doing so.” In re Magnum Oil Tools Int’l, Ltd., 829 F.3d 1364, 1381 (Fed. Cir. 2016) (quotations and citations omitted).” slip op. at 9

  • Obviousness (§103) › Graham factors (scope of art, differences, level of skill)UnpatentableUnpatentable

    “account not only specific teachings of the reference but also the inferences which one skilled in the art would reasonably be expected to draw therefrom.” In re Preda, 401 F.2d 825, 826 (CCPA 1968). Moreover, a precise teaching directed to the specific subject matter of a challenged claim is not necessary to establish obviousness. KSR, 550 U.S. at 418. Rather, “any need or problem known in the field of endeavor at the time of invention and addressed by the patent can provide a reason for combining the elements in the manner claimed.” Id. at 420. Accordingly, a party that petitions the Board for a determination of unpatentability based on obviousness must show that “a skilled artisan would have been motivated to combine the teachings of the prior art references to achieve the claimed invention, and that the skilled artisan would have had a reasonable expectation of success in doing so.” In re Magnum Oil Tools Int’l, Ltd., 829 F.3d 1364, 1381 (Fed. Cir. 2016) (quotations and citations omitted).” slip op. at 9

  Patent outcomesUS 11,384,394 unpatentable
  § 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 11,384,394
• The Noco Company, Inc. v. Pilot, Inc.All claims unpatentable
  PTAB · Jun 11, 2024 · IPR2023-00167 · APJ Julia Heaney · IPR · Final written decision

  Claims 1–24 are unpatentable; the Board finds the asserted § 103 grounds proven for each claim and dismisses the collateral-estoppel motion as moot.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “include (1) the educational level of the inventor; (2) the type of problems encountered in the art; (3) prior-art solutions to those problems; (4) the rapidity with which innovations are made; (5) the sophistication of the technology; and (6) the educational level of workers active in the field. Envtl. Designs, Ltd. v. Union Oil Co., 713 F.2d 693, 696–97 (Fed. Cir. 1983). Not all factors may exist in every case, and one or more of these or other factors may predominate in a particular case. Id. These factors are not exhaustive, but merely a guide to determining the level of ordinary skill in the art. Daiichi Sankyo Co. v. Apotex, Inc., 501 F.3d 1254, 1256 (Fed. Cir. 2007). Moreover, the prior art itself may reflect an appropriate skill level. Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001).” slip op. at 10

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

    “[O]nly those terms need be construed that are in controversy, and only to the extent necessary to resolve the controversy.” Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999); see Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 868 F.3d 1013, 1017 (Fed. Cir. 2017). We determine that no claim term requires an explicit construction to decide whether Petitioner satisfies the “preponderance of the evidence” standard for proving unpatentability. slip op. at 11

  • Obviousness (§103) › Objective indicia / secondary considerations › NexusObjective indicia no nexusDecided for petitioner

    “A patentee is entitled to a presumption of nexus “when the patentee shows that the asserted objective evidence is tied to a specific product and that product ‘embodies the claimed features, and is coextensive with them.’” Fox Factory, 944 F.3d at 1373 (quoting Polaris Indus., Inc. v. Arctic Cat, Inc., 882 F.3d 1056, 1072 (Fed. Cir. 2018)). “[I]f the marketed product embodies the claimed features, and is coextensive with them, then a nexus is presumed and the burden shifts to the party asserting obviousness to present evidence to rebut the presumed nexus.” Brown & Williamson Tobacco Corp. v. Philip Morris Inc., 229 F.3d 1120, 1130 (Fed. Cir. 2000). Coextensive “mean[s] that the product ‘is the invention disclosed and claimed’. . . . A product is ‘essentially the claimed invention when, for example, the unclaimed features amount to nothing more than additional insignificant features.’” Campbell Soup Co. v. Gamon Plus, Inc., 10 F.4th 1268, 1276–77 (Fed. Cir. 2021) (emphasis and citation omitted).” slip op. at 13

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

    “Having considered the evidence and arguments, we determine that the preponderance of the evidence favors Petitioner. Petitioner demonstrates that a person of ordinary skill would have had a reason to modify Richardson’s jump starter with Lai’s overcharge-protection circuit. Pet. 69. In particular, Petitioner shows that in order to protect against dangerous overcharging conditions in Richardson’s jump starter, a person of ordinary skill would have replaced diode 35 in Richardson with a switched overcharge-protection circuit, as taught by Lai, with the predictable result of cutting off recharging of jump starter batteries 22 from vehicle battery 28 in the event an over voltage protection threshold is crossed. See Ex. 1003 ¶ 174. Patent Owner’s argument that Richardson teaches away is not persuasive. Richardson’s teaching of recharging techniques supports the combination with Lai, rather than teaches away, because a system such as Richardson’s that permits recharging would have a need for safety protection and excessive recharging prevention. Further, claim 11 does not require preventing recharging in every situation, but rather only prevents recharging of “a normal voltage of the battery.” Ex. 1001, 6:11–12. In any event, Richardson does not criticize, discredit or discourage investigation into preventing recharging. See In re Fulton, 391 F.3d 1195, 1201 (Fed. Cir. 2004) (prior art does not teach away from claimed subject matter merely by disclosing a different solution to a similar problem unless the prior art also criticizes, discredits, or otherwise discourages the solution claimed).” slip op. at 35

  Patent outcomesUS 11,235,673 unpatentable
  Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 11,235,673
• Micron Technology, Inc. v. Katana Silicon Technologies LLCAll claims unpatentable
  PTAB · May 13, 2024 · IPR2023-00071 · APJ Julia Heaney · IPR · Final written decision

  Claims 3–5, 8, 11, 20–22, 27–29, 31, and 33 are unpatentable as obvious over the stated combinations of prior art and skilled-artisan knowledge.

  RulingsFinal written decision

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

    “On the fully developed record, we find that Petitioner’s construction, “a layer that adheres,” is more strongly supported by the evidence than Patent Owner’s construction, “a pre-formed layer that is adhered.” Our analysis begins with the claim language. The term “adhesion layer” appears in each of the ’806 patent’s independent claims, which include both method and device claims. See, e.g., Ex. 1001, 13:44–63 (claim 1 directed to a “semiconductor device”); id. at 17:58–18:17 (claim 30 directed to a “method of manufacturing a semiconductor device”). Claim 1 recites “a first semiconductor chip having a first adhesion layer adhered to its back surface” and “a second semiconductor chip having a second adhesion layer adhered to its back surface.” Id. at 13:49–51, 13:54–56 (emphasis added). Claim 30 recites the steps of “forming a first insulating adhesion layer on a back surface of a first wafer” and “forming a second insulating adhesion layer on a back surface of a second wafer.” Id. at 17:60–62, 18:3–5 (emphases added). In the absence of contrary evidence, we must assume that the term “adhesion layer” has the same meaning in all claims of the ’806 patent. In re Varma, 816 F.3d 1352, 1363 (Fed. Cir. 2016) (“the principle that the same phrase in different claims of the same patent should have the same meaning is a strong one, overcome only if ‘it is clear’ that the same phrase has different meanings in different claims,” quoting Fin Control Sys. Pty, Ltd. v. OAM, Inc., 265 F.3d 1311, 1318 (Fed. Cir. 2001)). The language of claim 30 and similarly worded claims of the ’806 patent suggests strongly that an “adhesion layer” may be formed in situ on the back surface of a wafer and need not be pre-formed, as argued by Patent Owner. The testimony of Patent Owner’s expert, Mr. Elenius, supports this interpretation. See Ex. 2014 ¶¶ 43, 50 (testifying that a person of ordinary skill in the art “would recognize that there are multiple methods of forming an ‘adhesion layer’ on the back surface of the semiconductor chip” and that “[p]astes and other adhesives, adhesive agents, adhesive layers or other material that are dispensed onto a substrate or chip back are formed into a layer over time as they harden through curing” (emphasis added)). Thus, the language of claims 30 and 31 does not support Patent Owner’s construction that the “adhesion layer” must be a pre-formed layer that is adhered. Cf. PO Resp. 22–25 (arguing for that construction).” slip op. at 17

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Citing testimony from Dr. Suhling, Petitioner asserts that a person of ordinary skill in the art at the priority date of the ’806 patent would have had i) a bachelor-level degree in electrical engineering, mechanical engineering, material science, or a related subject and five or more years of experience working in the field of semiconductor packaging; ii) a Master’s-level degree in mechanical engineering, electrical engineering, material science, or a related field, and at least 1-3 years of experience in the design/development of semiconductor packages; or iii) a Ph.D.- level degree in mechanical engineering, material science, electrical engineering, or a related field, and at least some experience in the area of semiconductor packaging. Pet. 17–18 (citing Ex. 1002 ¶¶ 28–32). Petitioner further states that “[a]dditional education may substitute for professional experience, and significant work experience may substitute for formal education.” Pet. 18. Patent Owner’s declarant, Mr. Elenius, states that a person of ordinary skill in the art would have had “a bachelor’s degree in electrical, mechanical or materials engineering and two to three years of experience in the design or development of semiconductor manufacturing, or the equivalent.” Ex. 2014 ¶ 32. Mr. Elenius further states that “[a]dditional graduate education could substitute for professional experience, or significant experience in the field could substitute for formal education.” Id. For purposes of this Decision, we find no meaningful differences” slip op. at 14

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

    “3. Reasons to Combine Petitioner contends that it would have been obvious for a person of ordinary skill in the art to combine Ball’s teachings of stacking chips with Mostafazadeh’s process for applying adhesive to create individual chips with adhesive backsides. Pet. 28–29. Petitioner contends that a person of ordinary skill would have been motivated to combine the teachings of Ball and Mostafazadeh for several reasons, including to provide a more efficient manufacturing process for multichip modules and to simplify the stacking process. Pet. 28–31. Patent Owner argues that a person of ordinary skill would not have been motivated to combine Mostafazadeh with Ball because there would have been no reasonable expectation of success and the combination would not have resulted in a functioning semiconductor device. PO Resp. 39. Patent Owner asserts that Petitioner’s combination of Ball and Mostafazadeh would fail for multiple reasons and that Mostafazadeh does not describe multi-chip stacked mounting. Id. at 39–52. Having considered the evidence and arguments, we determine that the preponderance of the evidence favors Petitioner. Petitioner demonstrates persuasively that a person of ordinary skill in the art would have had reasons to combine Ball’s stacked multichip module with Mostafazadeh’s process for applying adhesive at the wafer stage and then dicing to create individual chips with adhesive backsides. Pet. 28–31. In particular, Petitioner shows that a person of ordinary skill in the art would have considered Mostafazadeh’s teaching of applying the adhesive to a wafer surface and then subsequently dicing the wafer in order to provide a more efficient manufacturing process for multichip modules and to simplify Ball’s process of stacking chips. Id.; see KSR, 550 U.S. at 417 (stating that the “mere application of a known technique to a piece of prior art ready for the improvement” suggests obviousness). The teachings of both Ball and Mostafazadeh support Petitioner’s combination. Ball teaches a stacked multichip module using flip-chip and wire bond interconnections, where a lower chip is flip-chip connected to a substrate using metal bumps, and an upper chip is wire bond connected to the substrate. Ex. 1005, Abstract, 3:42–64, 4:58–59, 5:3–12, 5:18–20, 5:23– 27, Fig. 1. Ball teaches that the upper chip is attached to the lower chip in a back-to-back arrangement with a layer of adhesive applied over a back side of the lower chip. Id. Mostafazadeh teaches a method for applying integrated circuit dies to support surfaces. Ex. 1003, Abstract. In Mostafazadeh’s method, an adhesive coating is formed on a surface of a semiconductor wafer, the adhesive coating is dried, and the semiconductor wafer is diced to form integrated circuit dies, each having an adhesive layer on its mounting surface, i.e., its back surface. Id. at 3:5–11, 5:20–25, 7:9–11, 7:29–8:2, Fig. 2 (steps 104–110). A selected die is then attached to an associated support surface by placing the adhesive layer of the selected die in contact with the associated support surface. Id. at 3:11–13, 8:10–12, Fig. 2 (steps 112–118).” slip op. at 33

  • Obviousness (§103) › Graham factors (scope of art, differences, level of skill)UnpatentableUnpatentable

    “After considering the parties’ arguments and evidence, we determine that Petitioner meets its burden of proof for claim element [3d]. Our finding is supported by Figure 1 of Ball, which depicts a second chip mounted to a first chip in a back-to-back arrangement. Ex. 1002 ¶ 158; Ex. 1005, Fig. 1. More particularly, Ball’s Figure 1 shows that back side 32 of upper die 12 (the claimed “second semiconductor chip”) is mounted to back side 30 of lower die 14 (the claimed “first semiconductor chip”) by adhesion layer 28. Ex. 1005, 5:18–20. Relying on Dr. Suhling’s testimony, Petitioner shows persuasively that “a circuit is formed on the front surface 34 of upper die 12 . . . , as evidenced by bonding pads 36 and wires 38 connecting the upper die’s circuitry to the wiring layer on substrate 16.” Pet. 41; Ex. 1002 ¶ 159. We credit Dr. Suhling’s unrebutted testimony that, “[b]ecause the circuitry is on the front side of upper die 12, a [person of ordinary skill in the art] would know that the back surface adhesive layer is ‘where a circuit is not formed.’” Ex. 1002 ¶ 159. Patent Owner argues that, to meet claim elements [3b] and [3d], “a reference must show that an adhesion layer extends to cover the entire back surface of the second semiconductor chip where a circuit is not formed.” PO Resp. 30. We find no support in the claim language or other intrinsic evidence for Patent Owner’s argument. In our view, the phrase “back surface where a circuit is not formed” identifies the back side of the chip as opposed to the front side, where a circuit is formed. Ex. 1001, 14:26–27 (claim element [3d]). Our interpretation is supported by the claim language as a whole. Claim element [3b], for example, recites “a first semiconductor chip having a circuit forming on its front surface and an adhesion layer adhered to its back surface.” Id. at 14:17–19 (emphasis added). In this” slip op. at 47

  Patent outcomesUS RE38,806 unpatentable
  Claim construction§ 103 obviousnesscites Phillips · KSR

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.