• 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
• Shenzhen Tuozhu Technology Co., Ltd. v. Stratasys, Inc.All claims unpatentable
  PTAB · Jun 9, 2026 · IPR2025-00311 · APJ Christopher M Kaiser · IPR · Final written decision

  Claims 1, 3–11, and 17–22 are unpatentable as obvious over grounds using Mazumder and Mori; grounds relying on Henke fail because Henke is not analogous art.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “had a bachelor’s degree in Mechanical Engineering, Computer Engineering, Electrical Engineering, Materials Science, or a comparable field and at least two years of experience related to 3D printers including remote control of rapid fabrication systems.” Pet. 6 (citing Ex. 1003 ¶¶ 40–42). Petitioner also argues that “[a]dditional years of experience could substitute for an advanced-level degree (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, Electrical 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).” PO Resp. 11–12. Neither party explains why the outcome of this case would be affected by the adoption of either 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 9

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

    “There is also evidence that supports Petitioner’s proposed construction, under which a user interface may display both the image and the projection if it displays them at different times. This evidence includes statements in the specification that describe displaying an image “instead” of “a rendering of a three-dimensional model” and that describe displaying a “video image and/or model projection” rather than merely a video image and a model projection. Ex. 1001, 22:43–53, 24:52–55, Figs. 5, 7. It also includes arguments in the prosecution history distinguishing Taminger on the basis of failure of disclose any display of both an image and a projection at all, rather than on the basis of failure to disclose simultaneous display of both visualizations. Ex. 1002, 160, 161. Based on our review of all the probative evidence, we find that the preponderance of the evidence supports Petitioner’s view, so we construe the challenged claims as not requiring simultaneous display of the image and the projection.” slip op. at 15

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

    “With the problem solved by the ’324 patent defined as monitoring automated three-dimensional fabrication processes, we find that Mori is at least reasonably pertinent to the problem. Mori discloses “[a] machining status monitoring apparatus.” Ex. 1005, code (57), ¶ 43. That apparatus uses “actual CCD cameras . . . to image the workpiece.” Id. ¶ 49. It also has a “virtual image generating section” with “virtual CCD cameras” having “view points” that “match the view points of the actual CCD cameras.” Id. ¶¶ 59, 61, 62. This disclosure relates quite closely to monitoring an automated three-dimensional fabrication process and thus is at least reasonably pertinent to solving that problem. d) Conclusion For the reasons discussed above, Mori is both in the same field as the ’324 patent and at least reasonably pertinent to the problem solved by the ’324 patent. Accordingly, it is analogous art to the ’324 patent.” slip op. at 21

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

    “Regarding combining the teachings of Mazumder with those of Mori, the evidence of record shows that the print head of Mazumder’s three-dimensional printer could obscure portions of the actual camera’s view of the object being printed and that displaying Mori’s virtual image of the object in addition to Mazumder’s actual image of the object “would have allowed the user to of the remote computer to monitor the progress of the object even when the actual view of the object is partially or totally obscured.” Ex. 1003 ¶ 86. c) Conclusion Regarding Claim 1 For the reasons discussed above, the preponderance of the evidence shows that claim 1 would have been obvious over the combination of Mazumder and Mori.” slip op. at 26

  Patent outcomesUS 8,562,324 unpatentable
  Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 8,562,324
• Merck Sharp & Dohme LLC v. Halozyme, Inc.All claims unpatentable
  PTAB · Jun 8, 2026 · PGR2025-00004 · APJ Susan L C Mitchell · PGR · Final written decision

  Claims 1–4, 7–19, and 22 are unpatentable under § 112(a) for lack of written description and enablement, and under § 103 as obvious.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “II. ANALYSIS A. Level of Ordinary Skill in the Art We consider the grounds of unpatentability in view of the” slip op. at 8

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

    “1. Petitioner’s Position Petitioner asserts that the “terms used in the claims are either” slip op. at 12

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

    “7. Analysis We find the preponderance of the evidence supports a finding that the” slip op. at 59

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

    “6. Analysis Petitioner has the burden to identify how the specification allegedly” slip op. at 70

  Patent outcomesUS 12,018,298 unpatentable
  Claim construction§ 103 obviousness§ 112 disclosurecites Phillips · KSR · Graham
  Patents in suitUS 12,018,298
• Shenzhen Tuozhu Technology Co. Ltd. v. Stratasys, Inc.All claims unpatentable
  PTAB · Jun 3, 2026 · IPR2025-00257 · APJ Lilan Ren · IPR · Final written decision

  Claims 1–15 are unpatentable because Petitioner proved by a preponderance of the evidence that the asserted § 103 grounds render them unpatentable.

  RulingsFinal written decision

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

    “proceeding, we determine Petitioner has proven by a preponderance of the evidence that each of claims 1–15 of the ’660 patent is unpatentable.” slip op. at 85

  Patent outcomesUS 9,592,660 unpatentable
  § 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 9,592,660
• Merck Sharp & Dohme LLC v. Halozyme, Inc.All claims unpatentable
  PTAB · May 18, 2026 · PGR2025-00006 · APJ Cynthia M Hardman · PGR · Final written decision

  Claims 1–4 and 8–13 are unpatentable under §112(a) for lack of written description and enablement, and under §103 as obvious over the ’429 patent and Chao.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “II. ANALYSIS A. Level of Ordinary Skill in the Art We consider the grounds of unpatentability in view of the understanding of a person of ordinary skill in the art (sometimes referred to 3 US 7,767,429 B2, issued Aug. 3, 2010 (the “’429 patent”) (Ex. 1005). 4 Chao et al., Structure of Human Hyaluronidase-1, a Hyaluronan Hydrolyzing Enzyme Involved in Tumor Growth and Angiogenesis, 46 BIOCHEMISTRY 6911–20 (2007) (Ex. 1006). 5 Patent Owner withdrew the Declaration of Dr. Triggs-Raine. PO Resp. 10 n.6. herein as “POSA”) as of the effective filing date of the challenged claims. Petitioner contends that one of ordinary skill in the art would have had an undergraduate degree, a Ph.D., and post-doctoral experience in scientific fields relevant to study of protein structure and function (e.g., chemistry, biochemistry, biology, biophysics). From training and experience, the person would have been familiar with factors influencing protein structure, folding and activity, production of modified proteins using recombinant DNA techniques, and use of biological assays to characterize protein function, as well with techniques used to analyze protein structure (i.e., sequence searching and alignments, protein modeling software, etc.). Pet. 16.” slip op. at 7

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

    “5. Evidence and Analysis “The construction of claims is simply a way of elaborating the normally terse claim language in order to understand and explain, but not to change, the scope of the claims.” Embrex, Inc. v. Serv. Eng’g Corp., 216 F.3d 1343, 1347 (Fed. Cir. 2000). We first turn to the intrinsic evidence because “the specification is always highly relevant to the claim construction analysis. Usually, it is dispositive; it is the single best guide to the meaning of a disputed term.” Phillips v. AWH Corp., 415 F.3d 1303, 1314 (Fed. Cir. 2005) (en banc). “[T]he specification may reveal a special definition given to a claim term by the patentee that differs from the meaning it would otherwise possess. In such cases, the inventor’s lexicography governs.” Id. at 1316. [T]he definition in the patent documents controls the claim interpretation. . . . Any other rule would be unfair to competitors who must be able to rely on the patent documents themselves, without consideration of expert opinion that then does not even exist, in ascertaining the scope of a patentee’s right to exclude. Southwall Tech., Inc. v. Cardinal IG Co., 54 F.3d 1570, 1578 (Fed. Cir. 1995). a) Intrinsic evidence Our analysis begins with the claims and Specification of the ’262 patent. Claim 1 recites a “modified PH20 polypeptide” that also requires the polypeptide sequence is 95% identical to one of the 35 recited SEQ ID NOs and with at least one of seven amino acids at position 317 of the reference sequence. The ’262 patent states “PH20 refers to a type of hyaluronidase that occurs in sperm and is neutral-active.”7 Ex. 1001, 45:45– 46; cf. id. at 68:33–37. The ’262 patent further explains that “[r]eference to PH20 includes precursor PH20 polypeptides and mature PH20 polypeptides (such as those in which a signal sequence has been removed), truncated forms thereof that have activity, and includes allelic variants and species variants, variants encoded by splice variants, and other variants.” Id. at 45:62–67. The ’262 patent states that “PH20 polypeptides also include those that contain chemical or posttranslational modifications and those that do not contain chemical or posttranslational modifications.” Id. at 46:4–7.” slip op. at 15

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

    “four species tested, and particularly in a primate model that is physiologically more similar to humans, shows that a POSA would not have understood even unmodified PH20 polypeptides to provide a contraceptive effect in humans and most other species. The data Patent Owner relies upon at most shows an immunocontraceptive effect for unmodified PH20 polypeptides limited to guinea pigs. It does not evidence that a POSA would have understood that the recited modified polypeptides would provide such an effect or otherwise be useful in a contraceptive vaccine. Accordingly, even if the term “modified PH20 polypeptides” were interpreted to include inactive polypeptides that can serve as antigens to provide a contraceptive effect, the preponderance of the evidence does not show that a POSA would have understood the inventors to be in possession of the full scope of the recited polypeptides capable of such use. 7. Analysis We find the preponderance of the evidence supports a finding that the claims fail to comply with the written description requirement. “Every patent must describe an invention. It is part of the quid pro quo of a patent.” Ariad, 598 F.3d at 1345. In determining compliance with the written description requirement for nucleic acid genus claims, the Federal Circuit has identified two extremes. In Capon, claims relying on known nucleotide sequences with known functions were found to satisfy the written description requirement. Capon v. Eshhar, 418 F.3d 1349, 1358 (Fed. Cir. 2005). At the other end, Juno found that for broad claims to a nucleic acid encoding a chimeric T cell receptor with a functional requirement to bind a target, “the written description ‘must demonstrate that the applicant has made a generic invention that achieves the claimed result and do so by showing that the applicant has invented species sufficient to support a claim to the functionally-defined genus.’” Juno Therapeutics, Inc. v. Kite Pharma, Inc., 10 F.4th 1330, 1337 (Fed. Cir. 2021) (quoting Ariad, 598 F.3d at 1349). As explained above, claim 1 requires modified PH20 polypeptides with some hyaluronidase activity. See supra Section II.B. Based on this claim interpretation, we find the evidence in this case closer to Juno than Capon, and that the ’262 patent does not disclose sufficient structural features in the PH20 sequences associated with hyaluronidase or” slip op. at 57

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

    “6. Analysis Petitioner has the burden to identify how the specification allegedly fails to enable the claims. We address the Wands factors and the parties’ respective arguments and evidence. a) Breadth of Claims and Nature of the Invention Dr. Park states, regarding the breadth of claim 1, that he “calculated the number of distinct polypeptides that exist that meet the specified criteria.” Ex. 1004 ¶ 173. Dr. Park’s table is reproduced below: Dr. Park’s table shows that the “number of distinct peptides is extremely large by all accounts, ranging from 1049 to 1066.” Id. Dr. Hecht agrees, stating the “sequence identity language causes the claims to encompass an immense number of distinct PH20 polypeptides.” Ex. 1003 ¶ 120. To illustrate how large a number like 1066 is, Dr. Hecht states that an “aggregate weight of the smallest set containing one molecule of each of the PH20 mutants would be . . . = 1.37 x 1027 kg. The weight of the Earth is ‘only’ ~ 5.97 x 1024 kg.” Id. ¶ 123. That is, Dr. Hecht states that a complete set of one single molecule of protein that comprises all possible mutations in PH20 as recited in claim 1 would weigh about one thousand times more than the entire mass of planet Earth. See id. In deposition, Dr. Hecht stated “my sense was that the ’262 patent lists a minuscule and highly biased sample of what would be within that fence, in the sense that it only lists single amino acid substitutions while at the same time it’s attempting to claim things that have 20 or more substitutions.” Ex. 2076, 203:6‒12. When asked if a sequence “gives you enough information to tell whether that amino acid sequence is 95 percent identical to SEQ ID NO. 3”, Dr. Hecht answered “Yes, but that’s all it tells you. It doesn’t tell you anything about active, precipitated, aggregated, folded. It doesn’t tell you anything.” Id. at 204:11‒19.” slip op. at 70

  Patent outcomesUS 12,152,262 unpatentable
  Claim construction§ 103 obviousness§ 112 disclosurecites Phillips · KSR · Graham
  Patents in suitUS 12,152,262
• Tesla, Inc. v. Charge Fusion Technologies, LLCAll claims unpatentable
  PTAB · May 13, 2026 · IPR2025-00032 · APJ Mitchell G Weatherly · IPR · Final written decision

  Claims 1–29 are unpatentable as obvious under §103 based on the asserted combinations of prior art.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “understanding of a person of ordinary skill in the art at the time of the invention. Graham, 383 U.S. at 17. Petitioner submits that the ordinarily skilled artisan would have at least a bachelor’s degree in electrical or mechanical engineering (or an equivalent field) and at least two years of work experience involving automotive systems, including electric vehicle power management. . . . Additional industry experience or technical training may offset less formal education, while advanced degrees or additional formal education may offset lesser levels of industry experience. Pet. 2 (citing Ex. 1003 ¶¶ 30–32). Patent Owner “takes no position with respect to Petitioner’s proposed level of ordinary skill.” PO Resp. 17. For the purposes of our analysis below, we apply Petitioner’s proposed level of ordinary skill, which we find to be consistent with the problems addressed in the ’338 patent and the prior art.” slip op. at 10

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

    “Initially, we note that “amount of charge” reflects no express limitation on the manner of expressing the “amount” or the “charge.” And the Specification uses both “desired charge percent level” and “desired charge range level” as alternative ways for a user may specify an “amount of 3 As recited in independent claims 10, 19, and 28 charge.” For example, the Specification describes that a user may specify an amount of charge by specifying a desired travel distance as follows: “the user may indicate a desired charging level (and/or a desired charging level may be automatically calculated) based on a desired distance of travel.” Ex. 1001, 19:49–57 (emphasis added). Therefore, “amount of charge” may also refer to a desired mileage or range. Figure 7 further demonstrates that a user may select “amount of charge” in terms of a “percent” or a “range” as shown in Petitioner’s annotated version of the pertinent portion of that figure as shown below.” slip op. at 11

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

    “We disagree with Patent Owner. First, Patent Owner’s reliance on Wonderland as announcing a rule having broad effect is misplaced. Patent Owner contends that the “Federal Circuit has confirmed that where the primary reference already includes the function of the secondary reference, an allegation to incorporate that function into the primary reference is improper hindsight and no motivation to combine exists.” Id. at 29 (citing Wonderland NurseryGoods Co. v. Thorley Indus., LLC, 988 F.Supp. 2d 479, 498–99 (W.D. Pa. 2013), aff'd, 644 F. App'x 1011 (Fed. Cir. 2016); citing Kinetic Concepts, Inc. v. Smith & Nephew, Inc., 688 F.3d 1342, 1368 (Fed.Cir.2012))). Patent Owner’s citation to Wonderland does not support the proposition for which it is cited, namely that the Federal Circuit has “confirmed” that incorporating a function from a secondary reference into a primary reference is “improper hindsight” that precludes a motivation to combine teachings from the primary and secondary references. In Wonderland, the district court denied an accused infringer’s motion for summary judgment of invalidity, in part, due to its finding that genuine issues of material fact existed for the issue of whether sufficient motivation to combine prior art existed. Wonderland, 988 F. Supp. 2d at 511. The Wonderland decision does not constitute a final ruling on that issue, and the Federal Circuit’s summary affirmance of the final ruling by the district court does not address the issue or reflect how the issue was resolved at trial. Wonderland NurseryGoods Co. v. Thorley Indus., LLC, 644 F. App’x 1011 (Fed. Cir. 2016). Second, Petitioner also correctly points out that although Ferro refers to wireless charging, it provides no implementation details. Ex. 1004 ¶ 36; Ex. 2003, 54:8–55:9. Ferro also describes manual options for initiating charging, Ex. 1003¶ 146 (citing Ex. 1004 ¶ 109), and that an ordinarily skilled artisan would have been motivated to apply Oyobe’s vehicle sensor to allow a user to initiate Ferro’s charging methods more easily without the user having to leave the vehicle, Ex. 1003 ¶¶ 151, 152. Accordingly, we find that Petitioner has established that an ordinarily skilled artisan would have been motivated to incorporate Oyobe’s use of a sensor to establish presence of a vehicle near a charging station into Ferro’s system.” slip op. at 20

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

    “The test for obviousness is not whether the features of a secondary reference may be bodily incorporated into the structure of the primary reference. . . . Rather, the test is what the combined teachings of the references would have suggested to those of ordinary skill in the art.” MCM Portfolio LLC v. Hewlett-Packard Co., 812 F.3d 1284, 1294 (Fed. Cir. 2015). Patent Owner’s argument fails to account for the level of skill and creativity of an ordinarily skilled artisan, who would have possessed a bachelor’s degree in engineering and could have easily accounted for the differences in scale depicted by Letendre’s and Donnelly’s controls. Ex. 1003 ¶¶ 247–249. Accordingly, we find that Petitioner’s showing on the motivation to combine teachings of Ferro, Donnelly, and Letendre to arrive at limitation 1h is persuasive. slip op. at 30

  Patent outcomesUS 11,563,338 unpatentable
  Claim construction§ 103 obviousnesscites Phillips · Graham
  Patents in suitUS 11,563,338
• Merck Sharp & Dohme LLC v. Halozyme, Inc.All claims unpatentable
  PTAB · May 12, 2026 · PGR2025-00003 · APJ Jeffrey N Fredman · PGR · Final written decision

  Claims 1–4 and 8–21 are unpatentable for lack of written description and enablement; obviousness over the ’429 patent and Chao was not shown.

  RulingsFinal written decision

  • Skill levelSkill level board ownOther

    “VII. LEVEL OF ORDINARY SKILL IN THE ART We consider the grounds of unpatentability in view of the” slip op. at 7

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

    “term “modified PH20 polypeptide” in the ’600 patent supports the understanding that some type of activity is required for a polypeptide to be a “modified PH20 polypeptide”, and that the enzymatic activity of hyaluronidase is the most frequently identified activity recited in the definitions section of the ’600 patent. Id. at 48:38–53, 50:9‒17, 51:15‒18, 52:41–47, 55:9–23, 63:37–44, 64:14–19. In contrast, the discussion regarding the potential use of “modified PH20 polypeptides that are inactive” as antigens in contraception vaccines appears only in a non-definitional section of the ’600 patent. Id. at 75:56–58, 72:60–62. Accordingly, it does not modify the definition’s explicit requirement that the claimed “modified PH20 polypeptide” exhibit hyaluronidase activity. Id. at 48:38–53.” slip op. at 19

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

    “been able to use the data in the Specification to make reasonable predictions about the effect of multiple modifications on hyaluronidase activity, we view this testimony to at most describe a research plan (i.e., a “tool to engage in further modification”14) for finding the recited polypeptides rather than demonstrating the inventors were in possession of the full scope claimed. This is particularly so given the limits of the then-available analytical tools noted above and the fact that the structural connections and three dimensional modeling Patent Owner’s experts attempt to make (see, e.g., Ex. 2070 ¶¶ 129–213; Ex. 2068 ¶ 123) do not appear in the written description itself. To the extent the experts disagree on this point, we credit the testimony of Petitioner’s experts over that of Patent Owner’s. For these reasons, we find that a preponderance of the evidence of record better supports a finding that in the 2011–12 timeframe, it would have been unpredictable to identify which multiple mutants retained hyaluronidase activity, even with the single substitution data provided by the ’600 patent.” slip op. at 51

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

    “8. Conclusion We find that the balance of evidence supports a finding of undue” slip op. at 101

  Patent outcomesUS 11,952,600 unpatentable
  Claim construction§ 103 obviousness§ 112 disclosurecites KSR · Graham
  Patents in suitUS 11,952,600
• Illumina, Inc. v. Molecular Loop Biosciences, Inc.No claims unpatentable
  PTAB · Apr 15, 2026 · IPR2024-01419 · APJ Susan L C Mitchell · IPR · Final written decision

  Claims 1–9 were not shown unpatentable because the asserted references failed to disclose the claimed correcting step, and Chee was not prior art to claims 1–3 and 9.

  RulingsFinal written decision

  • Novelty / Anticipation (§102) › Priority / effective filing date / continuation supportPriority date awardedReference not prior artDecided for patent owner

    “We have considered both parties’ arguments and evidence and determine that Patent Owner has presented sufficient evidence of reasonable the invention to practice every day during the critical period in order to demonstrate reasonable diligence. See Perfect Surgical Techniques, Inc. v. Olympus America, Inc., 841 F.3d 1004, 1009 (Fed. Cir. 2016). “[D]iligence need not be perfectly continuous—only reasonably continuous.” Arctic Cat Inc. v. GEP Power Prods., Inc., 919 F.3d 1320, 1331 (2019). The key question is whether, “in light of the evidence as a whole, the invention was not abandoned or unreasonably delayed.” Id. (internal quotations omitted). Applying this standard, we determine that Patent Owner sufficiently demonstrates reasonably continuous diligence throughout the critical period.” slip op. at 32

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

    “introduced during said workflow by collapsing target:differentiator tag combinations observed more than once into a single count.” Ex. 1001, 131:46–48 (emphasis added). The “determining step” of claim 2 recites “determining a consensus base call for the target nucleic acid molecule sequences,” but performs “collapsing all sequence reads comprising a same differentiator tag into a single read,” before the “determining step.” Id. at 131:49–53. Patent Owner proposes an interpretation of these “collapsing” and “determining” steps recited in claims 1 and 2 and asserts that they should be construed as distinct steps performed in a particular order in which the “collapsing step” is performed before the “determining step.” PO Resp. 42–45. We agree. First, Patent Owner asserts a person of ordinary skill in the art would have understood that the “collapsing step” of claim 1 is distinct from, and must occur before, the “determining step” of claim 2 based on the plain language of claims 1 and 2. PO Resp. 42–43. Patent Owner argues that the “collapsing step” and the “determining step” are distinct steps because claims 1 and 2 use different terms to describe these distinct steps that are performed sequentially according to the claim language. Id. (citing Ex. 1001, 131:47–54; Ex. 2023 ¶ 133; Ex. 2024, 57:11–58:22). More specifically, Patent Owner explains that claim 1 recites a “collapsing step,” followed by claim 2, which depends from claim 1 and refers to “collapsing” before “determining a consensus base call” such that “claim 2 describes determining a consensus base call from collapsed reads, not performing ‘collapsing’ by determining a consensus base call.” Id. at 42 (citing Ex. 1001, 131:47–54). collapsing corrects for skewing, an issue related to over- or under-amplification, which is a separate and distinct problem from the sequence errors that a consensus base call is designed to address.” Id. at 43 (citing Ex. 1001, 27:47–50, 32:29–34). Patent Owner contends further that “‘[c]ollapsing’ is a different step, performed separately from determining any consensus base call, to provide even greater accuracy when subsequently determining a consensus base call” such that “if one were to collapse by determining the consensus base call, errors from amplification bias could still be represented in the consensus base call generated.” Id. at 43–44 (emphasis omitted, citing Ex. 2023 ¶¶ 134–37). Second, Patent Owner argues a person of ordinary skill in the art would have understood that the “collapsing step” of claim 1 is distinct from the “determining step” based on the specification of the ’730 patent. PO Resp. 43–45. For example, Patent Owner explains that the specification states that “[f]or any target:differentiator tag combination observed more than once, all such reads are ‘collapsed’ into a single read before consensus basecalls are determined. This will cancel the effect of bias on consensus basecall accuracy.” Id. at 43 (emphasis omitted) (quoting Ex. 1001, 72:63– 73:5) (citing Ex. 2023 ¶¶ 133, 138–142).” slip op. at 11

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

    “We have considered both parties’ arguments and evidence and agree with Patent Owner’s position. As discussed above, we agree with Patent Owner that the “collapsing step” recited in claim 1 and the “determining step” recited in claim 2 are two different steps required by the challenged claims such that “collapsing” does not mean determining a consensus base call or sequence, and must occur before any determining step. As a result, we determine Chee’s step of determining a consensus sequence does not disclose the “collapsing step” recited in claim 1 that requires collapsing “target:differentiator tag combinations.” We are also unpersuaded by Petitioner’s reliance on Chee’s process of correcting for amplification bias as disclosing the claimed collapsing step. As recognized by Patent Owner, the claim language of the “collapsing step” requires “collapsing target:differentiator tag combinations,” rather than collapsing only differentiator tags. In view of this requirement, Chee does not disclose the “collapsing step” because Chee teaches quantifying the starting nucleic acid molecules using their unique identifiers, rather than target:differentiator tag combinations. As Petitioner admits, “Chee’s technique for correcting amplification bias corrects quantitative errors without correcting sequencing errors” (Reply 15), whereas claim 1’s “collapsing step” corrects both quantitative errors and sequencing errors by using target:differentiator tag combinations. See Ex. 1001, 131:47–49 target:differentiator tag combinations).” slip op. at 41

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

    “Given this claim interpretation requiring collapsing target:differentiator tag combinations, it is undisputed that McCloskey, who uses unique barcodes alone, does not teach this limitation. Petitioner does not rely on Bignell as teaching this collapsing step. Accordingly, we conclude Petitioner has not shown that the combination of Bignell and McCloskey teaches the “collapsing step” recited in claim 1. Because claims 4 through 6 depend from claim 1, they also require the “collapsing step” of claim 1 that is not taught by the combination of Bignell and McCloskey.” slip op. at 54

  Patent outcomesUS 11,840,730 not shown unpatentable
  Claim construction§ 102 anticipation§ 103 obviousnesscites Graham
  Patents in suitUS 11,840,730
• Dr. Squatch, LLC v. The Procter & Gamble CompanyAll claims unpatentable
  PTAB · Mar 25, 2026 · IPR2024-01498 · APJ Sheridan K Snedden · IPR · Final written decision

  Claims 1–19 are unpatentable as obvious over the Lesniak- and Native-based grounds; the Squatch and Sturgis ground fails because Squatch was not shown to be a printed publication.

  RulingsFinal written decision

  • BurdenDecided for patent owner

    “We agree with Patent Owner that Petitioner has not shown sufficiently that Squatch is a printed publication. As described above, Petitioner relies on Squatch as a “website excerpt” placed on its site at the relevant time, but has not produced a screen shot of the website to show that it ever existed. See Ex. 1059. Petitioner provides internal documents that purport to describe what would have been on Dr. Squatch’s website at the relevant time, but falls short of establishing what was on the website for the interested consumer to view. Thus, we determine that this ground fails.” slip op. at 55

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “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 ¶¶ 26–28). Patent Owner does not dispute Petitioner’s proposal about the POSA’s qualifications at this stage of the proceeding. PO Resp. 10. 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. See e.g., Exs. 1003, 1004.” slip op. at 8

  • Expert testimonyPetitioner expert creditedPatent owner expert discountedDecided for petitioner

    “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 6–7 (citing Ex. 1003, 1:39–54). For example, Lesniak’s compositions (nos. 8 and 11) that used such a secondary 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 Pet. 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.” slip op. at 25

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

    “Patent Owner asserts that the preamble of independent claims 1, 16, and 19 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 argue to the contrary. See, e.g., Pet. 19 (arguing that Lesniak discloses a deodorant stick in the form of an antiperspirant stick).” slip op. at 8

  Patent outcomesUS 11,844,752 unpatentable
  Claim construction§ 102 anticipation§ 103 obviousnesscites KSR · Graham
  Patents in suitUS 11,844,752
• SAP America, Inc. v. Cyandia, Inc.All claims unpatentable
  PTAB · Mar 13, 2026 · IPR2024-01433 · APJ Jeffrey S Smith · IPR · Final written decision

  Claims 1–7, 10, 11, 13, 18, 19, 23, 29, 35, and 36 are unpatentable as obvious over the PCT Publication and Austin-Lane.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Patent Owner asserts that a person of ordinary skill in the art at the time of filing “would have had a Bachelor’s degree in electrical engineering, computer science, or the like, and/or four or more years of experience in server-based applications” and that “[a]dditional experience may make up for a lack of education and vice versa.” PO Resp. 9. Because Petitioner’s proposed level of ordinary skill in the art appears to be consistent with the challenged patent and prior art, we adopt it and use “skilled artisans” to refer to people with such skill at the time the invention was filed. We do not perceive a substantive distinction between the parties’ definitions, but note that Petitioner’s definition provides more detail about the capabilities of skilled artisans. Also, the level of ordinary skill in the art can be evidenced by the references cited, and we find it commensurate with the cited references in this proceeding. 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).” slip op. at 9

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

    “device indicated by the session data” encompasses “determining a notification method based on” session data indicating the current state of the external device, where the current state of the device encompasses an online state as well as an offline state. See Pet. 53–54; Tr. 55:3–10 (The Board: “Are there any other states of an external device other than online or offline?” Patent Owner: “As far as I know, Your Honor, those are the only two[.]”), Tr. 65:24–66:1 (The Board: “When the claim says current state, they mean it’s online or offline?” Petitioner: “Correct.”), Tr. 20:23–21:8. The specification is consistent with the plain language of the claim in disclosing two examples of the claimed “current state,” namely, online and offline. Ex. 1101, 21:1–4. The specification discloses that the notification manager “queries session manager 456 to determine the user’s connectedness.” Id. at 21:6–8. The specification discloses that if the user is “online, notify by, for example, the user’s active session. If offline, notify by, for example, a txt [sic] message, call the user’s landline, call a friend of the user, and the like.” Id. at 21:1–4, 23:28–31.” slip op. at 13

  • Disclosure Requirements (§112) › Written description (Ariad)Not entitled to earlier dateDecided for petitioner

    “Patent Owner’s expert witness, Dr. Goodrich, show written description support for providing a notification to an active external device, Patent Owner has not cited any portion of the 2009 Parent, nor any portion of the testimony of Dr. Goodrich, to show that the 2009 Parent provides written description support for determining a notification method by which to provide an alert to an external device based on the current state of the external device as offline. We highlight that Paragraphs 130 and 131 of the 2011 CIP Application disclose offline notification preferences for determining a notification method by which to provide an alert to an external device based on the current state of the external device as offline. Ex. 1110 ¶¶ 130–131. Specifically, paragraphs 130 and 131 describe that: the notification manager of the eventing and alerting subsystem 452 queries the configuration server 454 for the user's notification preferences and correlates these notification preferences with session manager 456 to determine the best notification method. That is, the notification manager queries the configuration server 454 and determines, for example, that the user has certain online notification preferences and certain offline notification preferences. If online, notify by, for example, the user's active session. If offline, notify by, for example, a txt message. . . . The notification manager of the eventing and alerting subsystem 452 then queries session manager 456 to determine the user's connectedness. Id. That is, if the user’s connectedness, or “current state” of the claimed external device, is offline, and the user’s offline notification preferences are “notify by txt message,” the notification manager will determine that the notification method for the external device having a current state of offline is by txt message. See id. Thus, the 2011 CIP Application describes a notification manager that queries a session manager to determine whether an external device is offline, and if the external device is offline, determines a notification method for providing an alert on the external device based on the current status of the external device as offline and the user’s offline notification preferences. Although we find this written description support for the determining limitation in the 2011 CIP Application, we do not find this written description support in the 2009 Parent.” slip op. at 25

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

    “As to the “determining a notification method” limitation (1.10), Petitioner asserts that Austin-Lane teaches determining: (1) the user device(s) to send the notification to (e.g., phone, PDA, notebook computer, desktop computer); (2) the communication protocol to use to send the notification, i.e., how to send the notification (e.g., SMTP (for email), SMS (for texts), HTTP (for web browsers)); and (3) the type of alert to provide, i.e., how to present the notification, (e.g., text, an icon, a pop-up window, a video, an email, an audible or tactile alarm), based on the current state of the at least one external device indicated by the session data (“presence information”), which may include whether and on which device(s) the user is online and/or whether and on which applications the user has an active session. Id. at 53 (internal citations omitted) (citing Ex. 1105 ¶¶ 4, 5, 29, 32, 33, 39, 46, 48, 61, 79, Fig. 1). We highlight that paragraph 61 of Austin-Lane discloses that: The type preferences 650 may include preferences for various notification types. . . . [A]uction alert #1 660 defines the following delivery precedence 663: (1) a web browser (if the user is online), (2) an IM client (if the user is online), (3) a mobile phone #1, (4) a PDA, (5) a mobile phone #2, (6) a pager, and (7) an email inbox. Ex. 1105 ¶ 61; see id. ¶¶ 74–77 (Describing that one of several notification methods for delivering an alert to a user’s device is determined based on the current state of the user’s device as online or offline). Thus, Austin-Lane describes determining a notification method by which to provide an alert on an external device based on the current state of the external device as online as well as offline.” slip op. at 29

  Patent outcomesUS 8,751,948 unpatentable
  Claim construction§ 103 obviousness§ 112 disclosurecites Phillips
  Patents in suitUS 8,751,948

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.