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  • PTAB · Sep 8, 2026 · IPR2025-00440 · APJ Tawen Chang · IPR · Final written decision

    Claim 21 is unpatentable as obvious over Mizumura with either the ’498 PCT or McClymont; the Revised Contingent Motion to Amend proposing claim 22 is denied.

    RulingsFinal written decision
    • Skill levelSkill level patent owner adoptedDecided for patent owner

      “overlap to a significant degree, i.e., a person with a Ph.D. in a discipline related to biological sciences and having had at least two years of work experience. However, the parties’ proposals differ slightly in the specific subjects in which a POSA would have had a doctoral degree, and whether the person’s work experience must have been directly related to horseshoe crab Factor C. As an initial matter, we find that a rigid requirement as to the subject of a POSA’s doctoral degree (e.g., biochemical engineering, enzymology), or experience working specifically with horseshoe crab proteins, is not consistent with the evidence of record. See, e.g., Ex. 1067, 20:23–21:2 (Dr. Schaefer testifying that the fact the “name of [his] Ph.D. is immunology . . . does not change the fact that the core of [his] thesis training was really in molecular biology”), 22:3–15 (explaining “the fact that the production of proteins recombinantly is mostly species agnostic”); Ex. 1069, 45:20–47:17 (Dr. Morris testifying that whether a person is a POSA depends on the person’s “experience, [ ] publications,” and work done for the Ph.D. rather than the name of the Ph.D. program). We also find that evidence of record supports Petitioner’s assertion that, for purposes of defining a POSA, “[m]ore education could substitute for experience, and vice versa.” See, e.g., Pet. 19; Ex. 1065, 99:14–100:3. with respect to the claims of the ’318 patent would have had a Ph.D. in molecular biology, biochemistry, or a related discipline, and about two years of experience with cloning genes, expressing cloned genes as proteins, and/or characterizing such cloned genes and proteins, with more education being able to substitute for experience, and vice versa. A POSA may also have collaborated with others, including those with specific experience in utilizing or assessing horseshoe crab Factor C for endotoxin detection and quantitation.” slip op. at 13

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

      “C. Claim Construction The parties agree that “the terms in claim 21 can be afforded their plain and ordinary meaning for purposes of this proceeding” without further construction. Pet. 19–20; PO Resp. 11. Because express claim construction is not needed to resolve the issues in this case, we need not, and do not, construe expressly any claim term for purposes of this Decision. See Realtime Data, LLC v. Iancu, 912 F.3d 1368, 1375 (Fed. Cir. 2019) (“The Board is required to construe ‘only those terms . . . that are in controversy, and only to the extent necessary to resolve the controversy.’”) (quoting Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999)).” slip op. at 14

    • Disclosure Requirements (§112) › Written description (Ariad)Written description inadequateNot entitled to earlier dateDecided for petitioner

      “Carrying Out the Invention section, that “[t]he Factor C of the present invention is a Factor C derived from a horseshoe crab,” and states later in the same section that “[e]xamples of the horseshoe crab include . . . Limulus polyphemus.” Ex. 1006, 40. However, none of the remaining portions of ’767 application cited by Patent Owner relate directly to L. polyphemus; instead, the remaining portions of ’767 application cited by Patent Owner are directed to other species, in particular the Japanese horseshoe crab T. tridentatus. Further, Patent Owner’s witness, Dr. Schaefer, conceded that the ’767 application does not contain Factor C sequence information for L. polyphemus. See, e.g., Ex. 1067, 44:25–45:23. Although “[n]o length requirement exists for a disclosure to adequately describe an invention,” Falko-Gunter, 448 F.3d at 1365–1366, we are persuaded that a POSA would not, based on the totality of the above disclosures, reasonably understand that the inventors were in possession of the claimed HEK-293 recombinant L. polyphemus Factor C protein, in view of the state of the art as of December 10, 2013. In this regard, we note that adequate written description of a biological molecule, such as a HEK293 recombinant L. polyphemus Factor C protein, requires “more than a mere statement that it is part of the invention and reference to a potential method for isolating it”; instead, what is required is “‘a precise definition, such as by structure, formula, chemical name, or physical properties,’ not a mere wish or plan for obtaining the claimed chemical invention.” The Regents of the” slip op. at 21

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

      “Pfizer, Inc. v. Apotex, Inc., 480 F.3d 1348, 1364 (Fed. Cir. 2007). Neither do we see Petitioner’s arguments regarding the December 10, 2013 priority date to be “mutually opposed” as Dr. Schaefer testified. Ex. 1067, 216:4– 24. Instead, we credit evidence of record, including Dr. Jain’s testimony and the February 22, 2018 Mizumura Declaration, that existence of the full sequence would permit a more complete analysis and that such an analysis would provide a POSA with a reasonable expectation that the claimed L. polyphemus recombinant protein would have a residual activity within the claimed range. See, e.g., Ex. 1029, 2–5; Ex. 1010, 48; Ex. 1065, 117:14– 130:24 (explaining that comparison of partial sequences in the Tokunaga 1991 publication showed “difference around the cleavage site” between T. tridentatus and L. polyphemus but comparison of the full sequence revealed that “the catalytic triad of histidine, serine, aspartate . . . to be more similar between Tachypleus and Limulus”). Patent Owner asserts that “Petitioner’s reliance on a statement made by Dr. Mizumura in a declaration submitted during prosecution of the ’767 Application fails to fill the gap in the analysis” regarding reasonable expectation of success, because the declaration “offers no evidence of the percentage of conserved amino acid substitutions that exist to support the conclusion that a POSA would have expected residual activity to be maintained between Tachypleus tridentatus and Limulus polyphemus” PO Resp. 47. However, as noted above, Dr. Mizumura provides an alignment of Factor C proteins from the two different species of horseshoe crab, determines that the similarity between the amino acid sequence is 99.5%, states that the amino acid residues that can undergo N-type sugar chain that L. polyphemus, like T. tridentatus, would also be less susceptible to inhibition by ions. Ex. 1029, 4–5. For the reasons discussed above, we also disagree with Patent Owner’s assertion that Petitioner’s reasonable expectation of success argument is “nothing more than conclusory assertions with no support.” PO Resp. 46. Rather, we find Petitioner has shown, by a preponderance of the evidence, that a POSA would have had reason to combine the teachings of Mizumura and the ’498 PCT, with a reasonable expectation of success in arriving at the Factor C protein recited in claim 21.” slip op. at 38

    Patent outcomesUS 11,236,318 unpatentable
    Claim construction§ 103 obviousness§ 112 disclosurecites KSR · Graham
    Patents in suitUS 11,236,318
  • PTAB · Aug 4, 2026 · IPR2025-00249 · APJ Michael J Fitzpatrick · IPR · Final written decision

    Claims 1 and 4–8 are unpatentable: claims 1 and 4–6 as obvious over Huang2 and Kuo, and claims 7–8 as anticipated by Huang2; claims 2–3 were not shown unpatentable.

    RulingsFinal written decision
    • Skill levelSkill level petitioner adoptedDecided for patent owner

      “(“POSITA”) “would be a Ph.D. student with a minimum of two years of experience in their faculty advisor’s laboratory” and would have an understanding of “electrospinning fibers, including for tissue engineering, tissue engineering techniques, and using/performing FFT analysis.” Pet. 20– 21 (citing Ex. 1003 § II.C7). Patent Owner does not dispute Petitioner’s proposal but specifies the set of disciplines within which the Ph.D. would have been earned, namely “bioengineering, chemical engineering, mechanical engineering, or a related engineering discipline.” PO Resp. 6. We adopt and apply Petitioner’s proposal as clarified by Patent Owner regarding the Ph.D. discipline.” slip op. at 7

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

      “At the outset, we agree with Patent Owner that the Specification purports to define “major peaks” in the following sentence: “The ‘major peaks’ herein refer to peaks higher than the average of the peaks in the result.” Ex. 1001, 13:28–29. We determine that this language satisfies at least two of the criteria set forth in Alnylam. Specifically, the sentence at “refers to” to explain what qualifies as major peaks. That is not the end of the inquiry, however, as we find there is still some ambiguity as to whether the patentee intended to define “major peaks” so as to require so-called “minor peaks” in the claimed invention. See Bell Atlantic, 262 F.3d at 1268 (“[T]he intrinsic evidence must ‘clearly set forth’ or ‘clearly redefine’ a claim term so as to put one reasonably skilled in the art on notice that the patentee intended to so redefine the claim term.”). Importantly, the Specification does not treat the existence of minor peaks as prerequisites for the existence of major peaks. Indeed, the Specification does not discuss “minor peaks” at all. See generally Ex. 1001. Likewise, none of the claims of the ’227 patent, whether challenged or unchallenged, recites “minor peaks” or any additional peaks beyond the disputed “major peaks.” Id. at 23:30–24:42. Nor does the Specification include an example of FFT analysis results in which the average of the peaks therein is calculated and those higher than the average are identified as major peaks.8” slip op. at 9

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

      “Petitioner has the better position. Huang2 teaches crosslinking and provides a reason for doing so (stability). In particular, Huang2 states: “To better mimic skin ECM, electrospun collagen fibers have been fabricated, however, the rapid degradation and poor mechanical properties determine that either crosslinking or combination with other materials is necessary to obtain a stable scaffold.” Ex. 1005, 1791 (emphasis added). It is true that, in describing work actually carried out, Huang2 states that blending with PCL was performed and does not mention crosslinking. See id. at 1792 (“Nanofibrous matrices of PCL and Collagen at a weight ratio of 3:1 were fabricated using electrospinning as previously described.”). However, the prior art – here, Huang2 – is not limited to that which it describes having created. See In re Mills, 470 F.2d 649, 651 (C.C.P.A. 1972) (“a reference is not limited to the disclosure of specific working examples”); see also In re Lemelson, 397 F.2d 1006, 1009 (CCPA 1968) (“The use of patents as references is not limited to what the patentees describe as their own inventions or to the problems with which they are concerned. They are part of the literature of the art, relevant for all they contain.”); In re Fritch, 972 F.2d 1260, 1264 (Fed. Cir. 1992) (“It is well settled that a prior art reference is relevant for all that it teaches to those of ordinary skill in the art.”). Huang2 teaches two stabilization methods when using collagen in scaffolds. Huang2 states that one or the other “is necessary to obtain a stable scaffold” (when using collagen), but it does not preclude or teach away from using Patent Owner-cited testimony of Dr. Mikos is not as definitive as Patent Owner suggests; Dr. Mikos’s testimony is that a person of ordinary skill in the art “typically would not have done both.” Ex. 2015 ¶64 (emphasis added). The bottom line is that Huang2 teaches the person of ordinary skill in the art two ways to stabilize scaffolds/matrices comprised of collagen, provides a reason for doing so (stability), and does not teach away from using both. We are persuaded that a “scaffold comprising crosslinked fibers comprising collagen” would have been obvious in view of the cited teachings of Huang2.” slip op. at 33

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

      “We are not persuaded by Appellant’s citations to either reference. As discussed above, Petitioner’s Ground 1 is premised on a person of ordinary skill in the art altering the native flat sheet structure of Huang2 by rolling it into a jelly-roll structure as taught by Kuo. See Pet. 41 (Beginning its claim 2 arguments with the following: “Claim 1 is obvious for the reasons expressed above in § X.A., supra, which are incorporated herein.”); see also Pet. Reply 17 (“[B]ased on the explicit teaching of Kuo, a POSA would have been motivated to take the electrospun flat scaffold made by the techniques of Huang2, seed it with the desired cells, and roll it to treat a tendon and ligament.” (emphasis added)). Indeed, the paragraphs of Kuo that Petitioner cites for disclosing “scaffold sheets,” explicitly describe rolling them into jelly-roll like structures. See Ex. 1018 ¶7 (stating that “the sheet is spirally contacting a scaffold sheet of fibrous material with a cell; and rolling the scaffold sheet in a jelly-roll like manner to form a spirally wound tissue construct”), ¶22 (describing a method comprising “forming a tissue construct by contacting a scaffold sheet of fibrous material with a cell; and rolling the scaffold sheet in a jelly-roll like manner to form a spirally wound tissue construct” and implanting it in a patient). Petitioner fails to argue that that “one or more elongated sheets” recited in claim 2 would encompass the rolled structure of its proposed modification. Nor does Petitioner articulate a claim construction argument that could support such an argument. Petitioner has failed to prove, by a preponderance of the evidence, that claim 2 would have been obvious over Huang2 and Kuo.” slip op. at 42

    Patent outcomesUS 11,318,227 mixed
    Claim construction§ 102 anticipation§ 103 obviousnesscites Phillips · Markman · KSR
    Patents in suitUS 11,318,227
  • PTAB · Aug 4, 2026 · IPR2025-00248 · APJ Michael J Fitzpatrick · IPR · Final written decision

    Claims 1–3 and 5–12 are unpatentable as anticipated by Huang2; claim 4 is unpatentable as obvious over Huang2 and Kumbar. Lee grounds failed.

    RulingsFinal written decision
    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “understanding of “electrospinning fibers, including for tissue engineering, tissue engineering techniques, and using/performing FFT analysis.” Pet. 18– 19 (citing Ex. 1003 § II.C5). Patent Owner does not dispute Petitioner’s proposal but specifies the set of disciplines within which the Ph.D. would have been earned, namely “bioengineering, chemical engineering, mechanical engineering, or a related engineering discipline.” PO Resp. 5–6. We adopt and apply Petitioner’s proposal as clarified by Patent Owner regarding the Ph.D. discipline.” slip op. at 7

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

      “A patentee “may choose to be his own lexicographer and use terms in a manner other than their ordinary meaning, as long as the special definition of the term is clearly stated in the patent specification or file history.” Vitronics Corp. v. Conceptronic, Inc., 90 F.3d 1576, 1582 (Fed. Cir. 1996) (citing Hoechst Celanese Corp. v. BP Chemicals Ltd., 78 F.3d 1575, 1578 (Fed. Cir. 1996)); see Markman v. Westview Instruments, Inc., 52 F.3d 967, 980 (Fed. Cir. 1995) (en banc) (“[A]ny special definition given to a word must be clearly defined in the specification.”), aff'd, 517 U.S. 370 (1996); CCS Fitness, Inc. v. Brunswick Corp., 288 F.3d 1359, 1366 (Fed. Cir. 2002). “[T]he intrinsic evidence must ‘clearly set forth’ or ‘clearly redefine’ a claim term so as to put one reasonably skilled in the art on notice that the patentee intended to so redefine the claim term.” Bell Atlantic Network Services, Inc. v. Covad Communications Group, Inc., 262 F.3d 1258, 1268 (Fed. Cir. 2001). Among the criteria to consider in whether the patentee acted as a lexicographer to define a claim term include (a) whether the patent specification included the statement in question under a section for marks, (c) whether the sentence uses the term “refer to,” which generally “conveys an intent for [that sentence] to be definitional,” and (d) whether there are other non-limiting terms (e.g., “for example,” or “include”) that contradict a definitional intent. Alnylam Pharms., Inc. v. Moderna, Inc., 138 F.4th 1326, 1333 (Fed. Cir. 2025) (alteration in original). At the outset, we agree with Patent Owner that the Specification purports to define “major peaks” in the following sentence: “The ‘major peaks’ herein refer to peaks higher than the average of the peaks in the result.” Ex. 1001, 13:6–7. We determine that this language satisfies at least two of the criteria set forth in Alnylam. Specifically, the sentence at issue sets out “major peaks” in quotation marks, and then uses the term “refers to” to explain what qualifies as major peaks. That is not the end of the inquiry, however, as we find there is still some ambiguity as to whether the patentee intended to define “major peaks” so as to require so-called “minor peaks” in the claimed invention. See Bell Atlantic, 262 F.3d at 1268 (“[T]he intrinsic evidence must ‘clearly set forth’ or ‘clearly redefine’ a claim term so as to put one reasonably skilled in the art on notice that the patentee intended to so redefine the claim term.”).” slip op. at 8

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

      “As discussed above, we agree with Patent Owner that the sentence it cites from the Specification of the ’223 patent bears sufficient hallmarks of lexicography. However, the Specification nonetheless lacks any indication that so-called “minor peaks” are a necessary component of the claimed invention. “Although it is firmly settled that an applicant may act as a 9 Figure 8B does not contain “major peaks” despite clearly depicting two “peaks higher than the average of the [three or possibly four] peaks in the result” because none of the peaks is a reflection of fiber alignment. 10 After presenting claim construction arguments based on Ayres 2008, Patent Owner confusingly states: “Finally, whether Ayres-2008 supports [Patent Owner’s] construction is irrelevant.” PO Sur-Reply 5 (emphasis added). definition that is contrary to the ordinary meaning of a claim term unless it communicates a deliberate and clear preference for this alternative definition.” Kumar v. Ovonic Battery Co., 351 F.3d 1364, 1368 (Fed. Cir. 2003). There is no indication that the patentee sought to require “minor peaks” within the scope of the claimed invention. Nor are we persuaded that a person of ordinary skill in the art would readily understand the scope of the term “major peaks” to require non-major peaks. We interpret the Specification’s statement that “‘major peaks’ herein refer to peaks higher than the average of the peaks in the result” (Ex. 1001, 13:6–7) to be teaching a person of ordinary skill in the art how to identify or discern “major peaks,” which indicate a principal axis of alignment, from any non-major peaks, which would be caused by something else. We conclude that a person of ordinary skill in the art would consider “major peaks” as used in the ’223 patent as referring to peaks that reflect the sole axis or primary axis of fiber alignment. See, e.g., id. at code (54) (“ALIGNED FIBER AND METHOD OF USE THEREOF”), code (57) (“A scaffold comprising an aligned fiber.”), 1:6–7 (“The invention relates to an aligned fiber and method of use thereof.”), 1:11–12 (“The invention relates to a scaffold comprising an aligned fiber.”), 13:16–17 (“Alignment of the fibers in the scaffold may be measured by a fast Fourier transform (FFT) analysis.”). This would certainly include peaks materially higher than the average of the peaks in the result, but it would not be limited to situations involving peaks of different heights or require so-called minor peaks. Based on the totality of the evidence before us, we do not construe the claims to require non-major peaks.” slip op. at 16

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

      “Petitioner argues that, for the aligned sample, a major peak occurs at about 90° as identified by Petitioner’s annotation (red arrow). Pet. 30–31. As support, Petitioner directs us to Huang2’s explicit description of what the peak indicates, namely that “[t]he narrow peak of the normalized intensity values in anisotropic [aligned] matrices (Figure 1C) indicated that PCL/Coll nanofibers aligned along a single axis (Fig. 1B).” Id. at 31 (alterations in original) (quoting Ex. 1005, 1794). Patent Owner disputes that the illustrated peak is a major peak solely based on the lack of any lesser peaks. See PO Resp. 13 (“[T]he height of the sole peak is identical to—not higher than—the average height of the peaks in the result.”). As discussed above, however, we do not construe “major peaks” as requiring the existence of non-major peaks. We find that the illustrated peak in the Aniso plot of the FFT analysis results (Figure 1C) is a major peak within the meaning of the claim. The evidence in support of this finding is overwhelming. First, the term “Aniso” as used in Huang2 refers to fibers “with alignment.” Ex. 1005, 1792. Huang2 describes fabricating such matrices of aligned fibers with electrospinning, the same method used to impart alignment in the ’223 patent. Id. at 1791–92. Huang2 visually confirms that the fibers in fact are aligned via scanning electron microscopy. Id. at Fig. 1B. Further, Huang2 explicitly states that the peak illustrated in the Aniso plot of the FFT analysis results (Figure 1C) is caused by the fact that the “PCL/Coll nanofibers aligned along a single axis (Fig. 1B).” Id. at 1794. This is precisely what electrospinning may yield aligned fibers and images of aligned fibers will yield FFT results with major peaks. Ex. 1001, 2:18–19, 4:46–60, 13:16–26. Additionally, Huang2 itself considers the peak illustrated in the Aniso plot of the FFT analysis to be significant, stating: “In contrast [to the Aniso plot], the lack of a significant peak for the fibers collected on a stationary surface [(i.e., without electrospinning)] demonstrated no preferred fiber orientation in the isotropic matrices” (i.e., the Iso plot). Ex. 1005, 1794. Indeed, the asserted major peak in the Aniso plot shown in Huang2’s Figure 1C is higher than any other data point on the plot. For these reasons, we find the peak to be a major peak.15 Petitioner acknowledges that Figure 1C only reports its results” slip op. at 32

    Patent outcomesUS 10,137,223 unpatentable
    Claim construction§ 102 anticipation§ 103 obviousnesscites Phillips · Markman
    Patents in suitUS 10,137,223
  • PTAB · Mar 6, 2025 · IPR2023-01292 · APJ David C Mckone · IPR · Final written decision

    Claims 1–4, 6–10, and 17–21 are unpatentable over Ohel; claims 5 and 11–16 were not shown unpatentable over Ohel or Nigawara.

    RulingsFinal written decision
    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “III. ANALYSIS A. Level of Skill in the Art Petitioner, relying on the testimony of Mr. Williams, contends that a person of ordinary skill in the art “would have had at least a bachelor’s degree in computer science, electrical engineering, or a similar field, and would have had approximately two years industry experience in networking or communication systems.” Pet. 3 (citing Ex. 1002 ¶¶ 55–58). Patent Owner does not dispute Petitioner’s proposal. PO Resp. 9. Petitioner’s proposal is consistent with the technology described in the Specification and the cited prior art. On the complete record, we adopt this level of skill.” slip op. at 9

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

      “We have considered the parties’ citations to the specification and find examples that support Petitioner’s view that the term “entity” is broad enough to encompass dispatchers and individual users. See e.g., Ex. 1001, 3:52–4:5, 7:18–20, Fig. 1). However, we find no disclosure that redefines “entity” or excludes dispatchers and individual users from the category of “entity.” Patent Owner’s best examples (e.g., Ex. 1001, 1:15–21, 3:59–62) are no more than non-limiting examples. On the complete record, we conclude that “entity” is broad enough to include dispatchers and individual users.” slip op. at 20

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

      “have used a queue with Ohel’s system. This is insufficient because it does not provide evidence of a reason why a skilled artisan would have implemented Ohel’s system with a queue. See Auris Health, Inc. v. Intuitive Surgical Operations, Inc., 32 F.4th 1154, 1158 (Fed. Cir. 2022) (“The motivation-to-combine inquiry asks whether a skilled artisan ‘not only could have made but would have been motivated to make the combinations . . . of prior art to arrive at the claimed invention.’” (quoting Belden Inc. v. Berk- Tek LLC, 805 F.3d 1064, 1073 (Fed. Cir. 2015) (emphasis omitted))).” slip op. at 35

    • Obviousness (§103) › Motivation to combine / reasonable expectation of success › HindsightNot reached

      “have used a queue with Ohel’s system. This is insufficient because it does not provide evidence of a reason why a skilled artisan would have implemented Ohel’s system with a queue. See Auris Health, Inc. v. Intuitive Surgical Operations, Inc., 32 F.4th 1154, 1158 (Fed. Cir. 2022) (“The motivation-to-combine inquiry asks whether a skilled artisan ‘not only could have made but would have been motivated to make the combinations . . . of prior art to arrive at the claimed invention.’” (quoting Belden Inc. v. Berk- Tek LLC, 805 F.3d 1064, 1073 (Fed. Cir. 2015) (emphasis omitted))).” slip op. at 35

    Patent outcomesUS 7,324,802 mixed
    Claim construction§ 103 obviousnesscites Phillips · Graham
    Patents in suitUS 7,324,802
  • PTAB · Jun 22, 2018 · PGR2017-00008 · APJ Sheridan K Snedden · PGR · Final written decision

    Claims 1–17 are unpatentable under § 112(a) for lack of written description because the claimed dosing regimen is not supported by the specification.

    RulingsFinal written decision
    • Skill levelSkill level board ownOther

      “with regard to claim 17. Nonetheless, we are not persuaded by Petitioner’s contentions. Rather, we find that the ’239 patent contains a sufficient written description of an oral dosage form containing “at least 10% zoledronic acid.” The specification describes a full panoply of zoledronic acid concentrations. Liquid compositions may contain “about 10% (w/v) to about 15% (w/v), about 15% (w/v) to about 20% (w/v), about 20% (w/v) to about 30% (w/v), about 30% (w/v) to about 40% (w/v), or about 40% (w/v) to about 50% (w/v) of zoledronic acid.” Ex. 1003, 10:25–28. Solid dosage forms may contain “at least about 10% (w/w), at least about 20% (w/w) . . .” up to “at least about 80% [w/w]” zoledronic acid. Id. at 10:30–32. Solid dosage forms also are described as containing zoledronic acid in ranges beginning from “about 10% (w/w) to about 30% (w/w), about 10% (w/w) to about 20% (w/w) . . .” all the way up to a range of “about 80% (w/w) to about 90% (w/w).” Id. at 10:32–39. The breadth of zoledronic acid concentration ranges disclosed is more comprehensive than, and therefore distinguishable from, the more limited concentration ranges disclosed in Wertheim (claimed range of “at least 35%” not supported by disclosure of 25% to 60% range disclosed in priority application). In short, we determine that a person of ordinary skill in the art – a medical doctor with experience treating CRPS – would have recognized that the “inventor invented what is claimed” and did not overreach in claiming “at least 10% zoledronic acid” in an orally administered dosage form for treating CRPS. See University of Rochester, 358 F.3d at 928 (Fed. Cir. 2004).” slip op. at 21

    • Expert testimonyOther

      “Unocal or Wertheim where the specification clearly allowed persons of ordinary skill in the art to recognize the claimed invention despite the absence of literal support. In Unocal, the original disclosure explicitly described the effects of altering the variables, explicitly described the claimed endpoints as preferred, or explicitly recited them in an original claim. Moreover, persuasive expert testimony was offered to support the finding that the specification reasonably conveyed to one skilled in the relevant art that the inventor possessed the later claimed invention. Unocal, 208 F.3d at 993, 998–99. In Wertheim, the CCPA held that the specification supported the claimed range of 35–60% where the specification described the range of 25–60% along with specific embodiments of 36% and 50%. 541 F.2d at 264–65. In this case, the ’239 patent specification does not clearly allow persons of ordinary skill in the art to recognize the “about 80 mg” endpoint as part of invention described in the ’239 patent. There is no disclosure of “about 80 mg” as a preferred endpoint, no disclosure of a specific embodiment including a dose of 80 mg, nor any other description suggesting the importance or criticality of the “about 80 mg” endpoint.” slip op. at 16

    • Disclosure Requirements (§112) › Written description (Ariad)Written description inadequateWritten description adequateMixed

      “In this case, the ’239 patent specification does not clearly allow persons of ordinary skill in the art to recognize the “about 80 mg” endpoint as part of invention described in the ’239 patent. There is no disclosure of “about 80 mg” as a preferred endpoint, no disclosure of a specific embodiment including a dose of 80 mg, nor any other description suggesting the importance or criticality of the “about 80 mg” endpoint.” slip op. at 16

    Patent outcomesUS 9,283,239 unpatentable
    § 112 disclosure
    Patents in suitUS 9,283,239
  • PTAB · Mar 9, 2018 · IPR2016-01749 · APJ Michelle N Wormmeester · IPR · Final written decision

    Claims 1, 4, 6–13, 20, and 22 are unpatentable as obvious; claims 2 and 3 were not shown unpatentable because the cited art did not establish portability or handheld use.

    RulingsFinal written decision
    • PTAB / AIA Trials › Real party in interest / privityRpi dispute resolved for petitionerDecided for petitioner

      “We agree with Petitioner. Although Petitioner bears the burden of correctly identifying the real parties-in-interest, “[w]e generally accept the petitioner’s identification of real parties-in-interest at the time of filing the petition.” See Zerto, Inc. v. EMC Corp., Case IPR2014-01254, at 6 (PTAB Mar. 3, 2015) (Paper 35) (citing Office Patent Trial Practice Guide, 77 Fed. Reg. 48,680, 48,695 (Aug. 14, 2012)). Here, Petitioner identifies in its Petition the real party-in-interest: “Pursuant to 37 C.F.R. § 42.8(b)(1), Unified Patents Inc. (‘Unified’ or ‘Petitioner’) certifies that Unified is the real party-in-interest.” Pet. 1. Such identification gives rise to a rebuttable presumption that Petitioner has complied with its obligation to identify all real parties-in-interest. See Zerto at 6–7. Patent Owner recognizes that “it [is] incumbent on the patent owner to come forward with some rebuttal evidence.” PO Resp. 52. In response to Petitioner’s identification of the real party-in-interest, Patent Owner contends that “this is not an instance where a petitioner’s certification in a petition can be taken at face value” because “evidence proffered by [Petitioner] in support of its position was withdrawn deliberately.” Id. at 53. We do not, however, require evidence beyond a petitioner’s identification of real parties-in-interest in the absence of rebuttal evidence that such identification is erroneous or incomplete. Petitioner’s withdrawal of Exhibit 1012 from the record does not constitute such rebuttal evidence. In view of the foregoing, we find that the circumstances here do not raise sufficient doubt about whether Petitioner has satisfied its obligation to name all real parties-in-interest. Therefore, we determine that the Petition should not be dismissed on this basis.” slip op. at 7

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

      “by applying the broadest reasonable interpretation in light of the specification of the patent in which they appear. See 37 C.F.R. § 42.100(b); Cuozzo Speed Techs. LLC v. Lee, 136 S. Ct. 2131, 2144–46 (2016) (upholding the use of the broadest reasonable interpretation standard). Under that standard, claim terms generally are given their ordinary and customary meaning, as would be understood by one of ordinary skill in the art in the context of the entire disclosure. See In re Translogic Tech., Inc., 504 F.3d 1249, 1257 (Fed. Cir. 2007). A “claim term will not receive its ordinary meaning if the patentee acted as his own lexicographer,” however, and clearly set forth a definition of the claim term in the specification. CCS Fitness, Inc. v. Brunswick Corp., 288 F.3d 1359, 1366 (Fed. Cir. 2002). Petitioner proposes an express construction for the claim term “transceiver.” Pet. 10. Patent Owner does not propose an express construction for any claim term. See generally PO Resp. In light of the parties’ arguments, we determine that no term requires express interpretation to resolve any controversy in this proceeding.” slip op. at 8

    • Obviousness (§103) › Motivation to combine / reasonable expectation of successUnpatentableNot shown unpatentableMixed

      “Rovira teaches each of the recited claim limitations, Petitioner must provide “some articulated reasoning with some rational underpinning to support the legal conclusion of obviousness.” See In re Kahn, 441 F.3d 977, 988 (Fed. Cir. 2006); see also KSR Int’l Co. v. Teleflex Inc., 550 U.S. 398, 418 (2007). In that regard, Petitioner directs us to Rovira’s teaching that “it is highly desirable to communicate program content information” because “having such information as music title, composer, artist and record label is vital” to music lovers. Pet. 16 (citing Ex. 1003, 1:30–32, 2:5–10); see also Ex. 1003, 1:32–35 (“Frustration of customers, and possible loss of revenue due to subscription cancellation can occur if a subscriber has no method of knowing the title, composer or artist of the particular selection of music.”). Petitioner argues it, thus, would have been obvious to modify Schotz’s system to incorporate a signal that includes both audio data and program data, as taught by Rovira. Pet. 17; see also, e.g., id. at 21 (“[O]ne would have been motivated to (1) modify Schotz’s transmitter 4 to transmit the digital audio signal of Rovira . . . and (2) modify Schotz’s receiver 6 to receive this digital audio signal.”); id. at 23 (“[T]his modification would result in Schotz’s user interface switch 18 selecting the digital audio data . . . within the digital audio signal [of Rovira].”); id. at 25 (“It would have been obvious to utilize the tuner 110 of Rovira in Schotz for [tuning] to frequencies that Schotz is receiving based on its use of Rovira’s digital audio signal. . . . Schotz is essentially doing this already, i.e., tuning to a frequency associated with audio data.”); id. at 27 (“[I]t would have been obvious to modify Schotz to utilize Rovira’s disclosed demodulator 125 to extract the selected digital audio data and the audio program information from the carrier wave, as taught by Rovira.”); id. at 28–29 (“It would have been obvious to modify Schotz to include the digital to analog converter 160 disclosed in Rovira. . . . The receiver 6 of Schotz would necessarily need a digital to analog converter when using the digital signals disclosed in Rovira so that the user can hear the selected music.”). We are persuaded by Petitioner’s reasoning, including specifically the quoted material in the preceding string citation to the Petition, for modifying Schotz’s system to include Rovira’s signal as well as various components for processing such a signal. See Kahn, 441 F.3d at 988. We note that “[a] person of ordinary skill is also a person of ordinary creativity, not an automaton,” and, in modifying Schotz’s system to include Rovira’s signal, would have made any necessary additional modifications such that Schotz’s system could process appropriately Rovira’s signal. See KSR, 550 U.S. at 421.” slip op. at 13

    Patent outcomesUS 6,757,913 mixed
    Claim construction§ 103 obviousnesscites KSR
    Patents in suitUS 6,757,913
  • PTAB · Jan 17, 2018 · IPR2016-01413 · APJ Christopher G Paulraj · IPR · Final written decision

    Claims 1–13 and 16–19 are unpatentable as obvious over Royce, McGinity, Hoffmeister, Joshi, and PDR.

    RulingsFinal written decision
    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “DISCUSSION A. Level of Skill in the Art Petitioner contends that a person of ordinary skill in the art for the ’976 patent would have “a degree in one or more fields of medicine, chemical engineering, chemistry, pharmaceutical science, polymer 1 Royce, U.S. Patent 5,273,758, issued Dec. 28, 1993 (Ex. 1022) (“Royce”). 2 McGinity et al, WO 97/49384, published Dec. 31, 1997 (Ex. 1024) (“McGinity”). 3 Hoffmeister et al., U.S. Patent 4,070,494, issued Jan. 24, 1978 (Ex. 1010) (“Hoffmeister”). 4 Joshi et al., Pub. No. US 2002/0187192 A1, published Dec. 12, 2002 (Ex. 1014) (“Joshi”). 5 OxyContin entry in Physicians’ Desk Reference, 2569–74 (53d ed., 1999) (Ex. 1016)(“PDR”). chemistry, pharmaceutics, pharmaceutical technology, pharmacokinetics, and/or pharmacology, and/or a number of years of industry training or experience in one or more of those fields.” Pet. 16 (citing Ex. 1007 ¶¶ 31– 34). Patent Owner agrees with Petitioner’s proposed level of skill in the art. PO Resp. 27. We, therefore, apply that skill level in our analysis, with the understanding that the level of skill of art in this proceeding is also reflected in the prior art of record. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001).” slip op. at 7

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

      “We find Petitioner’s proposed construction to be more persuasive based on the ’376 patent specification. In particular, the specification defines “unsuitable for injection” “to mean that one would have substantial difficulty injecting the dosage form (e.g., due to pain upon administration or difficulty pushing the dosage form through a syringe) due to the viscosity imparted on the dosage form, thereby reducing the potential for abuse of the opioid analgesic from the dosage form.” Id. at 3:15–20. Additionally, in an example concerning the formation of a gel at different concentrations, the specification characterizes certain solutions as “THICK (10 cP to 60 cP): Although a syringe can be filled with this solution, it was hard to do.” Id. at 32:8–24, Table 3. Thus, the specification teaches that a viscosity of at least 10cp is difficult to pull into a syringe or administer parenterally (via injection). Patent Owner does not address these teachings of the specification. We, therefore, determine that the broadest reasonable interpretation of “unsuitable for parenteral administration” and “unsuitable to pull into an insulin syringe” encompasses a gelling agent that imparts a viscosity of at least 10 cp.” slip op. at 9

    • PTAB / AIA Trials › §315(e) estoppelEstoppel appliesDecided for petitioner

      “Under the doctrine of issue preclusion, also called collateral estoppel, a judgment on the merits in a first suit precludes relitigation in a second [proceeding] of issues actually litigated and determined in the first suit.” In re Freeman, 30 F.3d 1459, 1465 (Fed. Cir. 1994) (citing Lawlor v. National Screen Serv. Corp., 349 U.S. 322, 326 (1955)). The Federal Circuit has articulated a four-factor test in determining whether collateral estoppel attaches: “(1) the identity of the issues in a prior proceeding; (2) the issues were actually litigated; (3) the determination of the issues was necessary to the resulting judgment; and (4) the party defending against preclusion had a full and fair opportunity to litigate the issues.” Levi Strauss & Co. v. Abercrombie & Fitch Trading Co., 719 F.3d 1367, 1371 (Fed. Cir. 2013). Collateral estoppel can attach in proceedings before the Office for identical issues that were addressed with respect to a different patent during prior slip op. at 16

    • Disclosure Requirements (§112) › Written description (Ariad)Written description inadequateDecided for petitioner

      “Although the statements above encompass “mixtures” of HPMC and PEO among a myriad of other possibilities for the gelling agent, we find no basis to conclude that the inventors of the ’376 patent were in possession of the specifically claimed formulation from such a broad disclosure.10 The Federal Circuit has held that such “laundry list” disclosures are insufficient to satisfy the written description requirement when there is no further guidance (“blazemarks”) provided about which species or combination of species included as part of the list may be selected to arrive at the claimed 9 The April 25th draft application is heavily redacted and we thus cannot discern what other materials were specifically contemplated as “thickening” agents by that time. See Ex. 2091, 5. Given the nature and amount of the redactions and Patent Owner’s assertion that the draft application ultimately led to the filing of the ’534 provisional with the broad disclosure set forth above, we find it reasonable to conclude that additional materials were included in the draft application. Moreover, the draft application was forwarded as part of an email from Patent Owner’s attorney, which “[e]nclosed the latest draft of the tamper resistant application.” Ex. 2091. As such, there is no evidence to suggest that the list of thickening agents included as part of the draft application originated from the inventors as opposed to patent counsel. 10 We recognize that the same broad disclosure with a “laundry list” of possible gelling agents is found in the specification of the ’376 patent. See Ex. 1001, 6:46–62. We, however, do not address the issue of written description support for any of the subsequently filed applications. invention. See Fujikawa v. Wattanasin, 93 F.3d 1559, 1571 (Fed. Cir. 1996). Not having specifically named or mentioned the combination in any manner, “one is left to select[] from the myriads of possibilities encompassed by the broad disclosure, with no guide indicating or directing that this particular selection should be made rather than any of the many others which could also be made.” In re Ruschig, 379 F.2d 990, 995 (CCPA 1967); see also Los Angeles Biomedical Research Inst. at Harbor-UCLA Med. Ctr. v. Eli Lilly & Co., 849 F.3d 1049, 1057 (Fed. Cir. 2017) (“To satisfy the written description requirement, the disclosure in each application must ‘reasonably convey[ ]’ to those skilled in the art that as of the claimed priority date the inventor was in possession of the later claimed subject matter.”) (citing Vas-Cath Inc. v. Mahurkar, 935 F.2d 1555, 1563 (Fed. Cir. 1991)). Other evidence of record further supports our conclusion that the inventors of the ’376 patent had not conceived of or reduced to practice the claimed formulation prior to Joshi’s August 30, 2001, filing date. In his declaration, inventor Benjamin Oshlack attests that Patent Owner’s laboratory scientists focused on “testing the syringeability of various concentration solutions of pectin, sodium alginate, and sodium acrylate, as well as combinations of pectin and sodium alginate” between January 4 and 17, 2001. Ex. 2081 ¶ 22. Additionally, Mr. Oshlack attests that the scientists had evaluated “xanthan gum, carrageenan, and locust bean gum (and combinations thereof) as gelling agents, between April 5 and 12, 2001.” Id. ¶ 23. None of the laboratory notebook excerpts proffered by Patent Owner mention a combination of HPMC and PEO as gelling agents to be used in an oxycodone formulation. Exs. 2087–2090. Consistent with the testing actually done, the working examples set forth in the ’534 provisional (as well as in the ’376 patent) focus on xantham gum, pectin, microcrystalline cellulose, and hydroxyethlcellulose as the gelling agents. See Ex. 1026, 44– 49 (Examples 1–5). We find, therefore, that the inventors did not particularly consider either PEO or HPMC, let alone both PEO and HPMC in combination, when evaluating possible gelling agents for an abuse-deterrent formulation of oxycodone. Accordingly, because we find that the ’376 patent is not entitled to a” slip op. at 22

    Patent outcomesUS 9,034,376 unpatentable
    Claim construction§ 102 anticipation§ 103 obviousness§ 112 disclosurecites KSR
    Patents in suitUS 9,034,376
  • PTAB · Jan 17, 2018 · IPR2016-01317 · APJ Kristina M Kalan · IPR · Final written decision

    Claims 1–20 are unpatentable as obvious over Gerber and O’Donnell; claims 1–4 and 6–11 are also unpatentable as obvious over Gerber and Barrie.

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

      “would be understood by one of ordinary skill in the art at the time of the invention. See In re Translogic Tech., Inc., 504 F.3d 1249, 1257 (Fed. Cir. 2007). Any special definitions for claim terms must be set forth with reasonable clarity, deliberateness, and precision. See In re Paulsen, 30 F.3d 1475, 1480 (Fed. Cir. 1994). Only those terms which are in controversy need to be construed, and only to the extent necessary to resolve the controversy. See Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co. Ltd., 868 F.3d 1013, 1017 (Fed. Cir. 2017) (“we need only construe terms ‘that are in controversy, and only to the extent necessary to resolve the controversy’”) (quoting Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999)).” slip op. at 6

    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “We adopt Petitioner’s contention that a person of ordinary skill in the art would be a physician specializing in urology or oncology, or holding a Ph.D. in pharmacology, biochemistry or a related discipline. Additional experience could substitute for the advanced degree. To the extent necessary, one of skill in the art may collaborate with one or more other persons of skill in the art for one or more aspects with which the other person may have expertise, experience and/or knowledge that was obtained through his or her education, industrial or academic experiences. For example, one of skill may consult with an enzymologist and/or molecular biologist and thus may rely on the opinions of such specialists in evaluating the claims. Pet. 7 (citations omitted). Patent Owner does not appear to dispute Petitioner’s definition in its Patent Owner Response. See generally PO Resp. The level of ordinary skill in the art in this case is further demonstrated by” slip op. at 9

    • Expert testimonyPetitioner expert creditedDecided for petitioner

      “Regarding the interpretation of O’Donnell’s Synacthen test, we do not agree with Patent Owner that the results “lack any significance.” See PO Resp. 20. We are persuaded that one of ordinary skill in the art would understand the results of this test to be an indicator that something was amiss with the O’Donnell Study C patients’ cortisol levels following administration of abiraterone acetate. Results of the Synacthen test led O’Donnell to conclude that further studies were needed to determine whether glucocorticoid replacement would be necessary. Ex. 1003, 2323. We understand Patent Owner’s position that the “Synacthen test results in O’Donnell do not give a complete picture of a patient’s glucocorticoid production.” PO Resp. 21. We, however, do not perceive that a complete picture of a patient’s glucocorticoid production is required for one of ordinary skill in the art to be motivated to explore whether glucocorticoid replacement therapy was necessary. Petitioner’s experts opine that O’Donnell’s results for the Study C patients were “unquestionably abnormal” and implied that abiraterone acetate could result in chronic cortisol deficiency “for which glucocorticoid replacement therapy could be required.” Reply 6– 7 (citing Ex. 1093, 22, 68; Ex. 1023, 1245). We credit this testimony as supporting Petitioner’s argument that one of ordinary skill in the art, upon reviewing O’Donnell’s Synacthen test results and statement regarding impact on adrenal reserve, would not conclude that they lack any significance; rather, they would conclude that they are significant enough to merit further investigation of administration of abiraterone acetate with glucocorticoids.” slip op. at 19

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

      “aware of the differences and the similarities in the mechanisms and, nevertheless, would have compared and analogized between the two. See, e.g., Tr. 14:20–15:5; Ex. 1003, 2318, Figure 1; Ex. 1188, 168:22–169:23. Both O’Donnell and Barrie refer to ketoconazole in their discussions of abiraterone acetate, indicating that teachings regarding ketoconazole administration were a starting point for exploration of abiraterone acetate administration. Ex. 1003, 2318; Ex. 1005, Table 1. For example, O’Donnell, after evaluating ketoconazole as an agent, turns to an evaluation of abiraterone acetate as a more selective CYP17 inhibitor, i.e., as an improvement on ketoconazole. Ex. 1003, 2318. After presenting the results from its studies, O’Donnell discusses that, in the clinical use of ketoconazole, “it is common practice to administer supplementary hydrocortisone” and that, therefore, “further studies with abiraterone acetate will be required to ascertain if concomitant therapy with glucocorticoid is required on a continuous basis, at times of physiological stress, if patients become symptomatic or indeed at all.” Id. at 2323. This statement represents the proposition that one of ordinary skill in the art would use the example of ketoconazole’s clinical use to take the next investigative steps with abiraterone acetate. We have not been presented with evidence that dissuades us from taking this statement at face value. Patent Owner’s expert testified that ketoconazole, as “an inhibitor of steroid biosynthesis that had been used at that point,” was a basis for comparison: “When you write scientific papers, you always like to make comparisons with what is known and explain why your results are different or the same or what the caveats are. And I think that’s setting up . . . to understand what comes next, why they did this experiment.” Ex. 1188, 169:15–23. Thus, we are persuaded that one of ordinary skill in the art would understand that both ketoconazole and abiraterone are CYP17 inhibitors, albeit with different mechanisms. With this knowledge, and given the teachings of the prior art on administration of ketoconazole and administration of abiraterone acetate, we find that one of ordinary skill in the art would look to the administration of ketoconazole for guidance on how to administer abiraterone acetate.” slip op. at 17

    Patent outcomesUS 8,822,438 unpatentable
    Claim construction§ 103 obviousnesscites KSR · Graham
    Patents in suitUS 8,822,438
  • PTAB · Jan 17, 2018 · IPR2016-01582 · APJ Kristina M Kalan · IPR · Final written decision

    Claims 1–20 are unpatentable as obvious over Gerber, O’Donnell, and Sartor because the combination would have provided a reasonable expectation of success.

    RulingsFinal written decision
    • Prior constructionPrior construction adoptedDecided for patent owner

      “treatment,” and “therapeutically effective amount of prednisone.” Pet. 20– 21. Petitioner notes that these claim terms have already been construed in IPR2016-00286,1 Paper 14, and states that it analyzes the claims under those constructions for the purpose of this proceeding. Id. In our Decision on Institution, we applied our claim constructions of “treat,” “treating,” “treatment,” and “therapeutically effective amount of prednisone,” as set forth in IPR2016-00286, to the present case. Dec. 5–7; IPR2016-00286, Paper 14, 5–7. Thus, we construed those terms as follows: 1 IPR2016-00286 is an earlier-filed case involving the ’438 patent, the same grounds, and the same Patent Owner. Claim term(s) Construction “treat,” “treating,” and include the eradication, removal, “treatment” modification, management or control of a tumor or primary, regional, or metastatic cancer cells or tissue and the minimization or delay of the spread of cancer Ex. 1001, 3:46–50 “therapeutically effective an amount of prednisone effective for amount of prednisone” treating prostate cancer Patent Owner states: “Neither party has disputed the Board’s slip op. at 6

    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “We adopt Petitioner’s contention that a person of ordinary skill in the art would be a treating clinician specializing in oncology, typically holding an M.D. degree, with at least five years of experience specializing in medical oncology. Alternatively, a POSA would have an M.D., with at least five years of experience specializing in urology and at least two years of clinical experience. A POSA would have also typically worked as part of a multi-disciplinary team and drawn upon not only his or her own skills, but also taken advantage of certain specialized skills of others in the team, to solve a given problem. Pet. 3–4 (citations omitted). Patent Owner does not appear to dispute Petitioner’s definition in its Patent Owner Response. See generally PO Resp. The level of ordinary skill in the art in this case is further demonstrated by the prior art asserted in the Petition. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001). D. Overview of the Prior Art” slip op. at 9

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

      “Based on the information presented during trial, we understand that ketoconazole and abiraterone acetate do not have identical mechanisms. See, e.g., Ex. 1005, 2318, Figure 1. As noted by both Petitioner and Patent Owner, however, abiraterone acetate and ketoconazole are both CYP17 inhibitors. Pet. 11–13; PO Resp. 13–15. Although Patent Owner urges us to focus on the differences in the mechanisms of operation of ketoconazole and abiraterone acetate (PO Resp. 13–15), we look not only at the differences, but also at the similarities. The evidence demonstrates that one of ordinary skill would have been aware of the differences and the similarities in the mechanisms, and nevertheless would have compared and analogized between the two. Ex. 1005, 2318, Figure 1; Ex. 1002 ¶ 67. O’Donnell refers to ketoconazole in its discussion of abiraterone acetate, indicating that teachings regarding ketoconazole administration were a starting point for exploration of abiraterone acetate administration. Ex. 1005, 2318. O’Donnell, after evaluating ketoconazole as an agent, turns to an evaluation of abiraterone acetate as a more selective CYP17 inhibitor, i.e., as an improvement on ketoconazole. Ex. 1005, 2318. After presenting the results from its studies, O’Donnell discusses that, in the clinical use of ketoconazole, “it is common practice to administer supplementary hydrocortisone” and that, therefore, “further studies with abiraterone acetate will be required to ascertain if concomitant therapy with glucocorticoid is required on a continuous basis, at times of physiological stress, if patients become symptomatic or indeed at all.” Id. at 2323. This statement represents the proposition that one of ordinary skill in the art would use the example of ketoconazole’s clinical use to take the next investigative steps with abiraterone acetate. We have not been presented with evidence that dissuades us from taking this statement at face value. Thus, we are persuaded that one of ordinary skill in the art would understand that both ketoconazole and abiraterone are CYP17 inhibitors, albeit with different mechanisms. With this knowledge, and given the teachings of the prior art on administration of ketoconazole and administration of abiraterone acetate, we find that one of ordinary skill in the art would look to the administration of ketoconazole for guidance on how to administer abiraterone acetate.” slip op. at 16

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

      “Regarding Patent Owner’s comparison of abiraterone acetate monotherapy with abiraterone acetate/dexamethasone therapy, we agree with Petitioner that “to the extent that [Patent Owner] tries to draw any conclusion between studies that involve a combination with dexamethasone, we respectfully submit that there’s no nexus there” in that “[d]examethasone is not what’s claimed and there’s no nexus to the claims.” Tr. 19:17–20, 20:2– 3. Although dexamethasone and prednisone are both glucocorticoids, Patent Owner does not point us to satisfactory evidence as to why the ordinary artisan would consider dexamethasone and prednisone to be interchangeable for the purpose of comparing results. Cf. Ex. 2038 ¶ 240 (stating that a person of ordinary skill would “understand the dexamethasone extension study results to be due to a class effect of glucocorticoids” without further citation). Because the claims cover prednisone, and not any other glucocorticoid, the results of the combination of dexamethasone with abiraterone acetate are of limited use, as we are not informed of the similarities or differences of the mechanism of action of those glucocorticoids or how the mechanism leads to the asserted unexpected results. Moreover, to the extent the table purportedly compares the abiraterone acetate monotherapy to abiraterone acetate administered with prednisone, the table compares the abiraterone acetate monotherapy administered in clinical trial COU-AA-001 with the abiraterone acetate administered with prednisone in clinical trial COU-AA-002, without explaining or accounting for the differences between the two trials. Tr. 20:10–19. We determine that there is insufficient evidence that the alleged unpredictable and unexpected results of abiraterone acetate and prednisone are objective indicia of nonobviousness of the challenged claims. Patent Owner does not sufficiently tie the allegedly unpredictable and unexpected result to the administration of abiraterone acetate and prednisone as claimed. Thus, we determine this consideration does not weigh in favor of the patentability of the challenged claims.” slip op. at 36

    Patent outcomesUS 8,822,438 unpatentable
    Claim construction§ 103 obviousnesscites KSR · Graham
    Patents in suitUS 8,822,438
  • PTAB · Jan 17, 2018 · IPR2017-00853 · APJ Kristina M Kalan · IPR · Final written decision

    Claims 1–20 are unpatentable as obvious over Gerber and O’Donnell; claims 1–4 and 6–11 are also unpatentable as obvious over Gerber and Barrie.

    RulingsFinal written decision
    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “We adopt Petitioner’s contention that a person of ordinary skill in the art would be a physician specializing in urology, endocrinology, or oncology, or a person holding a Ph.D. in pharmacology, biochemistry or a related discipline, such as pharmaceutical science. Additional experience could substitute for the advanced degree. To the extent necessary, one of skill in the art may collaborate with one or more other persons of skill in the art for one or more aspects with which the other person may have expertise, experience and/or knowledge that was obtained through his or her education, industrial or academic experiences. For example, one of skill may consult with an endocrinologist, oncologist, or medical biochemist and thus may rely on the opinions of such specialists in evaluating the claims. Pet. 7 (citations omitted). Patent Owner does not appear to dispute Petitioner’s definition in its Patent Owner Response. See generally PO Resp. The level of ordinary skill in the art in this case is further demonstrated by the prior art asserted in the Petition. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001).” slip op. at 10

    • ExcludeMotion to exclude, deniedMixed

      “responded (Paper 76) and to which Patent Owner filed a Reply (Paper 80). The party moving to exclude evidence bears the burden of proof to establish that it is entitled to the relief requested, e.g., that the material sought to be excluded is inadmissible under the Federal Rules of Evidence. See 37 C.F.R. §§ 42.20(c), 42.62(a). Patent Owner seeks to exclude Exhibits 1002 ¶ 30; 1017; 1017 [B-1]; 1028; 1040; 1041; 1046–51; 1053–55; 1057; 1064–66; 1088; 1089; 1091 ¶¶ 17–29, 31; 1092–95; 1097, ¶¶ 11–16, 95; 1100, 1102, 1103; 1104 ¶¶ 5–9, 11–13, 88–90, 92–95, and 119–22; 1117; 1125; and 1139. Paper 69, 10. Patent Owner seeks to exclude these exhibits as (a) expert declarations and exhibits that Patent Owner alleges are outside of the scope of the prior art permitted by 35 U.S.C. § 311(b); (b) sections of Petitioner’s declarations that are not cited in the briefs, and therefore irrelevant and prejudicial; and (c) exhibits that lack authenticity or violate the hearsay rule. Id. at 1.” slip op. at 44

    • Prior constructionPrior construction not adoptedDecided for petitioner

      “treatment” and “treating” by the district court in a companion litigation. Ex. 2004. The district court, after a lengthy analysis, construed the disputed terms as follows: “Treatment/treating means the eradication, removal, modification, management or control of a tumor or primary, regional, or metastatic cancer cells or tissue and the minimization or delay of the spread of cancer.” Id. at 30. The district court read out of the definition the term “includes.” Id. Although we are not bound by the district court’s reasoning and claim constructions in related proceedings, we do not disregard the determinations of a court interpreting the same claim term in a related patent in a concurrent proceeding. Power Integrations, Inc. v. Lee, 797 F.3d 1318, 1326–27 (Fed. Cir. 2015) (“The fact that the board is not generally bound by a previous judicial interpretation of a disputed claim term does not mean, however, that it has no obligation to acknowledge that interpretation or to assess whether it is consistent with the broadest reasonable construction of the term.”). Thus, although we acknowledge and have considered the district court’s interpretation, we retain our broadest reasonable construction of the terms “treat,” “treatment,” and “treating.” We see no reason to modify our claim construction positions in light of the record developed at trial, and we maintain our claim constructions from the Decision on Institution for the purposes of this Decision. No other claim terms have been presented to us for construction following institution of trial, and we determine that no other claim terms require express construction. B. Principles of Law slip op. at 8

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

      “Based on the information presented during trial, we understand that ketoconazole and abiraterone acetate do not have identical mechanisms. See, e.g., Ex. 2038 ¶¶ 25–39, Figs. 4, 5). As noted by both Petitioner and Patent Owner, however, abiraterone acetate and ketoconazole are both steroid synthesis inhibitors, particularly, CYP17 inhibitors. Pet. 26; PO Resp. 13– 15; Reply 2, 5, 9. Both parties appear to agree that, based on their respective mechanisms of action, administration of ketoconazole would inhibit production of cortisol, and administration of abiraterone acetate inhibits one of the pathways of cortisol production. Pet. 5, 26; Tr. 12:18–19; PO Resp. 14, Figs. 1, 2; Ex. 1003, 2318; Ex. 1023, 3, Fig. 1. Patent Owner takes the position that abiraterone acetate “allows some cortisol to be made.” Tr. 31:27–29. Although Patent Owner urges us to focus on the differences in the mechanisms of ketoconazole and abiraterone acetate, we look not only at the differences, but also at the similarities. The evidence demonstrates that one of ordinary skill would have been aware of the differences and the similarities in the mechanisms and, nevertheless, would have compared and analogized between the two. See, e.g., Ex. 1003, 2318, Figure 1; Reply 6 (citing Ex. 1104 ¶¶ 14–31; Ex. 1097 ¶¶ 44–49). Both O’Donnell and Barrie refer to ketoconazole in their discussions of abiraterone acetate, indicating that teachings regarding ketoconazole administration were a starting point for exploration of abiraterone acetate administration. Ex. 1003, 2318; Ex. 1005, Table 1. O’Donnell, after evaluating ketoconazole as an agent, turns to an evaluation of abiraterone acetate as a more selective CYP17 inhibitor, i.e., as an improvement on ketoconazole. Ex. 1003, 2318. After presenting the results from its studies, O’Donnell discusses that, in the clinical use of ketoconazole, “it is common practice to administer supplementary hydrocortisone” and that, therefore, “further studies with abiraterone acetate will be required to ascertain if concomitant therapy with glucocorticoid is required on a continuous basis, at times of physiological stress, if patients become symptomatic or indeed at all.” Id. at 2323. This statement represents the proposition that one of ordinary skill in the art would use the example of ketoconazole’s clinical use to take the next investigative steps with abiraterone acetate. We have not been presented with evidence that dissuades us from taking this statement at face value. Thus, we are persuaded that one of ordinary skill in the art would understand that both ketoconazole and abiraterone are CYP17 inhibitors, albeit with different mechanisms. With this knowledge, and given the teachings of the prior art on administration of ketoconazole and administration of abiraterone acetate, we find that one of ordinary skill in the art would look to the administration of ketoconazole for guidance on how to administer abiraterone acetate.” slip op. at 18

    Patent outcomesUS 8,822,438 unpatentable
    Claim construction§ 103 obviousnesscites KSR · Graham
    Patents in suitUS 8,822,438
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