- Synaffix B.V. v. Hangzhou Dac Biotech Co., Ltd.Some claims unpatentablePTAB · Aug 26, 2025 · IPR2022-01531 · APJ Devon Zastrow Newman · IPR · Final written decision
Claims 1–17, 20, 21, 24, 26, and 29–31 are unpatentable; claims 25 and 32–34 were not shown unpatentable, and the motion to exclude was dismissed as moot.
RulingsFinal written decision- RemandOther
“review of claims 1–17, 20, 21, 24–26, and 29–34 of the ’682 patent. Paper 2 (“Pet.”), 1, 3. Patent Owner, Hangzhou DAC Biotech Co., Ltd., filed a Preliminary Response (Paper 9, “Prelim. Resp.”). We initially determined that the information presented in the Petition did not establish a reasonable likelihood that Petitioner would prevail with respect to at least one of the challenged claims, and did not institute inter partes review. Paper 17. Petitioner requested Director review of our decision denying institution (Paper 18 (“Request”)). The Director delegated review of the decision to a Delegated Rehearing Panel (“DRP”). Paper 19. Patent Owner was granted the option to file a response to Petitioner’s Request (Paper 22 (“Request Resp.”)). The Delegated Review Panel vacated our decision and remanded the case to this panel with a revised claim construction for claim 1. Paper 23 (“DRP Dec.”). On August 30, 2024, we instituted an inter partes review after remand from the Director. Paper 25 (“Inst. Dec.”). Patent Owner subsequently filed a Patent Owner Response (Paper 31, “Resp.”), Petitioner filed a Reply (Paper 36, “Reply”), Patent Owner filed a Sur-reply (Paper 44, “Sur-reply”), and Petitioner filed a Sur-sur-reply (Paper 48, “Sur-sur-reply”).” slip op. at 2
- PTAB / AIA Trials › Motions to amend / substitute claimsOther
“I. Patent Owner’s Motion to Exclude Evidence Patent Owner moves to exclude Exhibits 1089 and 1090. Paper 50. As we did not rely on either of Exhibits 1089 or 1090 in deciding this matter, Patent Owner’s motion is dismissed as moot.” slip op. at 96
- Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)Not shown unpatentableMixed
“For these reasons, Patent Owner’s arguments and cited evidence also” slip op. at 31
- Obviousness (§103) › Motivation to combine / reasonable expectation of successUnpatentableNot shown unpatentableMixed
“function as R2, and the ethyl group may function as R4, which can be a linear alkyl having 1–6 carbon atoms. We note that claim 3 permits R5 and R6 to be absent. For these reasons, the arguments presented in the Petition demonstrate that claim 3 would have been obvious over Singh’s Compound 3 when modified in view of Harris.” slip op. at 73
Patent outcomesUS 10,131,682 mixed§ 102 anticipation§ 103 obviousnesscites Phillips · KSR · GrahamPatents in suitUS 10,131,682 - Life Spine, Inc. v. Globus Medical, Inc.Some claims unpatentablePTAB · Mar 20, 2024 · IPR2022-01434 · APJ Cynthia M Hardman · IPR · Final written decision
Claims 1–9 and 15 are unpatentable over Chung and Olmos-based obviousness grounds; claims 10–14 were not shown unpatentable because the asserted references did not teach the claimed complementary relationship.
RulingsFinal written decision- Expert testimonyOther
“improperly incorporates-by-reference 12 pages of expert testimony via a single sentence.” PO Sur-reply 16 n.2 (citing Pet. Reply 17, which in turn cites Ex. 1026 (Hatch Decl.) ¶¶ 49–66). We find that many of the paragraphs within the cited range (i.e., Hatch Declaration paragraphs 49–66) appear to have a tenuous connection to the proposition for which Petitioner cites these paragraphs. See Pet. Reply 17. That said, we find that paragraphs 53–55 directly relate to Petitioner’s proposition in the Reply, i.e., that “Petitioner’s experts explain why a [person of ordinary skill in the art] would rely on a cross-sectional view over a perspective view for making the determination in question, because only the cross-sections provide the needed side view directly orthogonal to the positions of the yellow expansion portion and the end of the dovetail.” Id. Accordingly, we find that paragraphs 53–55—the only paragraphs we cite from Petitioner’s range in reaching our conclusion—are not improperly incorporated by reference into Petitioner’s Reply.” slip op. at 66
- Strike new argumentNew argument consideredDenied
“provide Petitioner an opportunity to respond under the new construction, and decline to strike Petitioner’s relevant argument and evidence. Cf. Axonics, 75 F.4th at 1383 (“[W]hen the Board adopts a new claim construction following institution, an IPR petitioner must have adequate notice and an opportunity to respond under the new construction.”). Like in Axonics, in its new arguments on Reply, Petitioner here relies on the same embodiment from the same prior art reference that it relies on in the Petition to support the same legal argument, i.e., that Olmos’s Figure 16 embodiment discloses the “complementary with one another” limitation of challenged claims 10– 14. See Axonics, 75 F.4th at 1384; see also Apple Inc. v. Andrea Elecs. Corp., 949 F.3d 697, 706 (Fed. Cir. 2020) (permitting petitioner to elaborate in reply on an unpatentability theory presented in the petition). Moreover, we permitted Patent Owner to file (and it indeed did file) a sur-reply brief and expert declaration that addressed Petitioner’s new obviousness theories. Accordingly, both parties had adequate notice of our preliminary construction and an opportunity to respond under that new construction. For these reasons, we deny Patent Owner’s motion to strike.” slip op. at 124
- Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)UnpatentableNot shown unpatentableMixed
“from the expansion portion. We agree with Patent Owner that the wording of this limitation as a whole requires that the “extension necessarily must protrude beyond a longitudinal end of the expansion portion.” Id. at 11. We also agree with Patent Owner that “[u]nder Petitioner’s tenuous theory, an extension in any direction except 90 or 180 degrees would satisfy the claim language since any such direction has a so-called ‘longitudinal component.’” Id. at 13. For these reasons, we disagree with Petitioner’s argument that the purported “longitudinal component” of Chung’s extension satisfies limitation 1[h].” slip op. at 55
- Obviousness (§103) › Motivation to combine / reasonable expectation of successUnpatentableNot shown unpatentableMixed
“would have been motivated to add an extension to the Figure 16 embodiment because “an integrally-formed extension advantageously requires fewer parts, which facilitates both manufacturing and use.” Pet. 118. We agree with Patent Owner that this argument is unavailing. PO Resp. 50. Petitioner’s combination entails adding an extension (from Figure 8) to an embodiment lacking one (Figure 16). We agree with Patent Owner that adding a new component (whether separately or integrally) can in some instances complicate manufacturing/assembly and increase costs. See id. (citing Ex. 2013 (Culbert Decl.) ¶ 115). Petitioner has not sufficiently demonstrated that the proposed combination in this instance would reduce complexity or facilitate the manufacturing process. Accordingly, we do not rely on this argument offered by Petitioner.” slip op. at 106
Patent outcomesUS 8,845,731 mixed§ 102 anticipation§ 103 obviousnesscites Phillips · KSR · GrahamPatents in suitUS 8,845,731 - Dermira, Inc. v. Purepharm, Inc.Some claims unpatentablePTAB · Dec 27, 2016 · IPR2015-01594 · APJ Zhenyu Yang · IPR · Final written decision
Claims 1–3 and 5–8 are unpatentable as anticipated by Hays or obvious over the listed combinations; claim 4 was not shown unpatentable for lack of a reason to add another sweating therapy.
RulingsFinal written decision- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)Term construed board ownOther
“In interpreting claim terms, the claims themselves provide substantial guidance. Vitronics Corp. v. Conceptronic, Inc., 90 F.3d 1576, 1582 (Fed. Cir. 1996). Here, claim 1, from which claims 2–8 depend, recites the dosed amount of glycopyrrolate in solution as “an amount ranging from 3.0 wt. % to 4 wt. %.” Because claim 1 describes the dosed amount by the strength/concentration, it supports our conclusion that term “dosed amount” is not limited by the volume of the glycopyrrolate solution.” slip op. at 6
- BurdenMixed
“Petitioner may well be correct that preferring a non-anticholinergic does not necessarily exclude administering “another oral and/or topical therapy for reduction of sweating,” as required by challenged claim 4. Petitioner, however, does not point to any credible evidence or otherwise explain why an ordinary artisan would have chosen another therapy to reduce sweating to be administered in combination with glycopyrrolate. Without some articulated reasoning with rational underpinning as to why an ordinary artisan would have added a second therapeutic for reducing sweating to the transdermal patch of Bodor, which uses the anticholinergic to eliminate the formation of an aqueous layer between the delivery system and the skin to enhance the penetration of the transdermal drug being delivered, Petitioner has not met its burden of demonstrating that claim 4 20 would have been obvious over the combination of Bobrove and Bodor. See KSR, 550 U.S. at 418.” slip op. at 20
- Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)UnpatentableUnpatentable
“(citing Ex. 1009, 1821). Hays instructs that glycopyrrolate solutions should be carefully applied while avoiding the mouth, nose, and eyes. Id. (citing Ex. 1009, 1798, 1809). For example, it discloses applying a cotton applicator dipped in the glycopyrrolate solution to the skin while holding the hair up out the way to treat patients with gustatory sweating in the hairline. Id. at 31 (citing Ex. 1009, 1819). Dr. Guy testifies that an ordinary artisan would have understood the cotton applicator in Hays “as being any of a cotton ball, a cotton pad, a cotton swab, or having a cotton component as a part of a larger applicator.” Ex. 1003 ¶ 72. According to Hays, glycopyrrolate in concentrations of 0.5%, 1.0%, and up to 4% provided effective control of gustatory sweating with no significant side effects. Pet. 29 (citing Ex. 1009, 1819). Thus, we agree with Petitioner that Hays discloses each and every limitation of claim 1.” slip op. at 11
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundMotivation not foundMixed
“Bobrove specifically teaches applying a “roll on” glycopyrrolate solution. Ex. 1008, 6:26–27, 6:36–37. It, however, also generally teaches that glycopyrrolate is administered topically. Id. at 4:1. Thus, one of ordinary skill in the art would have had a reason to look for other means to apply glycopyrrolate. As Dr. Guy testifies, “[t]here are a limited number of ways to topically deliver a drug to a patient’s skin.” Ex. 1003 ¶ 16. In addition, Bobrove suggests to avoid the eyes, nose, and mouth during the topical administration. Ex. 1008, 5:37–39. Given these considerations, Bodor provides an effective alternative: a cotton cloth to absorb the drug and rub it on the skin. Ex. 1030, 15:39–54; see also Ex. 1003 ¶ 17 (explaining that, at the time of the invention, an ordinary artisan would have known that use of medicated pads “allowed for topical application of a solution, for example to a subject’s face, while excluding application to sensitive areas such as the eyes or mucous membranes”). Thus, we conclude Petitioner has shown, by a preponderance of the evidence, that an ordinary artisan would have had a reason to combine the teachings of Bobrove and Bodor. In sum, Petitioner has shown, by a preponderance of the evidence, that an ordinary artisan would have had a reason to combine the teachings of Bobrove and Bodor, and that the combination teaches each and every limitation of claims 1 and 2. Claims 4, 5, and 8” slip op. at 19
Patent outcomesUS 8,252,316 mixedClaim construction§ 102 anticipation§ 103 obviousnesscites Phillips · KSRPatents in suitUS 8,252,316 - Dermira, Inc. v. Purepharm, Inc.Some claims unpatentablePTAB · Dec 27, 2016 · IPR2015-01593 · APJ Zhenyu Yang · IPR · Final written decision
Claims 1–3 and 5–10 are unpatentable as anticipated by Hays or obvious over the stated combinations; claim 4 was not shown unpatentable for lack of a reason to add another sweating therapy.
RulingsFinal written decision- Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed board ownDecided for petitioner
“In interpreting claim terms, the claims themselves provide substantial guidance. Vitronics Corp. v. Conceptronic, Inc., 90 F.3d 1576, 1582 (Fed. Cir. 1996). Here, the challenged claims recite the dosed amount of glycopyrrolate in solution as “an amount ranging from 1.0 wt. % to 6 wt. %” (claim 1); “an amount ranging from 2.0 wt. % to 6.0 wt. %” (claim 9); and “an amount ranging from 2.0 wt. % to 4.0 wt. %” (claim 10). Because the claims describe the dosed amount by the strength/concentration, they support our conclusion that term “dosed amount” is not limited by the volume of the glycopyrrolate solution.” slip op. at 6
- Skill levelSkill level board ownOther
“The parties disagree over the level of ordinary skill.8 See Pet. 17–18; PO Resp. 3; Reply 9. For purposes of this Decision, we do not need to resolve this dispute because the prior art itself reflects an appropriate skill level. Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001).” slip op. at 16
- Expert testimonyPetitioner expert creditedDecided for petitioner
“not qualify as one of ordinary skill in the art because he is not a clinician, physician, or pharmacist. PO Resp. 3–4. We disagree with Patent Owner on this issue. All asserted references relate to topical administration of pharmaceutical compositions. See, e.g., Ex. 1008, 4:1; Ex. 1010, 2:35–38; Ex. 1030, 3:60–61. In addition, the challenged ’524 patent relates to the topical delivery of glycopyrrolate to reduce excessive sweating and minimize side effects. Ex. 1001, Abstract, 1:13–21. Dr. Guy has over 30 years of experience in fields including topical drug delivery, transdermal” slip op. at 16
- Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)UnpatentableUnpatentable
“water base and a vanishing cream base in 0.5 to 1% concentration. It completely controls gustatory sweating for several days or more.” Pet. 30 (citing Ex. 1009, 1821). Hays instructs that glycopyrrolate solutions should be carefully applied while avoiding the mouth, nose, and eyes. Id. at 31 (citing Ex. 1009, 1798, 1809). For example, it discloses applying a cotton applicator dipped in the glycopyrrolate solution to the skin while holding the hair up out the way to treat patients with gustatory sweating in the hairline. Id. (citing Ex. 1009, 1819). Dr. Guy testifies that an ordinary artisan would have understood the cotton applicator in Hays “as being any of a cotton ball, a cotton pad, a cotton swab, or having a cotton component as a part of a larger applicator.” Ex. 1003 ¶ 90. According to Hays, glycopyrrolate in concentrations of 0.5%, 1.0%, and up to 4% provided effective control of gustatory sweating with no significant side effects. Pet. 31 (citing Ex. 1009, 1819). Thus, we agree with Petitioner that Hays discloses each and every limitation of claim 1.” slip op. at 11
Patent outcomesUS 8,679,524 mixedClaim construction§ 102 anticipation§ 103 obviousnesscites Phillips · KSRPatents in suitUS 8,679,524
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.