- Integrated Dna Technologies, Inc. v. Tecan Genomics, Inc.No claims unpatentablePTAB · Apr 6, 2026 · IPR2025-00016 · APJ Zhenyu Yang · IPR · Final written decision
The Board found claims 1–3, 5–12, and 14–19 not shown unpatentable because Meyer did not disclose the claimed enrichment, which the obviousness grounds did not supply.
RulingsFinal written decision- Skill levelSkill level board ownDecided for patent owner
“for purposes of this Decision, we find a POSA would have had a Ph.D. in the field of chemistry, molecular biology, or biochemistry. Alternatively, a POSA would have had a B.S. or M.S. degree with three to five years of experience working in any of those fields. Additionally, the POSA would have had knowledge of how those methods functioned. Id. at 12.” slip op. at 8
- Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed patent owner constructionDecided for patent owner
“As an initial matter, we acknowledge that the definition “to process so as to add or increase the proportion of a desirable ingredient” has two possible interpretations. In the first interpretation, “add or increase” shares the same object “the proportion of a desirable ingredient.” When the proportion of one ingredient goes higher, the proportion of at least another ingredient would necessarily go lower. Thus, the enrichment process under this interpretation results in a higher proportion of the desirable ingredient relative to other ingredients. Patent Owner adopts this interpretation. See PO Resp. 17 (“In the context of preparing a sequencing library, [Patent Owner] Tecan proposes that a nucleic acid sequence of interest is ‘enriched’ when the proportion of nucleic acid fragments containing the sequence of interest is increased relative to other nucleic acid fragments in the sample.”). According to Patent Owner, “amplifying the one or more oligonucleotide extension products . . . thereby enriching the nucleic acid sequence of interest, by generating amplified products comprising the enriched nucleic acid sequence of interest” in step (c) means “increas[ing] the proportion of the nucleic acid sequence of interest relative to the nucleic acid fragments in the solution not containing the sequence of interest by amplifying the oligonucleotide extension product and its complement.” Id. at 19–20. Under the second interpretation, the object for “add” is “a desirable ingredient,” whereas the object for “increase” is “the proportion of a desirable ingredient.” This interpretation is broader than the first one in that the result of the enrichment process not only encompasses a higher proportion of the desirable ingredient relative to other ingredients, but also more desirable ingredient in raw number.” slip op. at 11
- Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)Not shown unpatentableNot shown unpatentable
“We agree with Dr. Sims. As explained above, the amplification step must result in at least some enrichment of the sequence of interest, even though it does not have to be the only cause. See supra Section II.C.2.b. Indeed, Petitioner acknowledges that “at least some of the enrichment must result from the recited steps.” Reply 12. Because Meyer’s enrichment for mRNA using the SMART protocol occurred before any recited steps of claim 1, we find it does not meet the claimed “enrichment” under our construction.” slip op. at 22
- Obviousness (§103) › Graham factors (scope of art, differences, level of skill)Not shown unpatentableNot shown unpatentable
“shown that Meyer discloses step (c) of claim 1, and Petitioner does not address that limitation in this ground, we find Petitioner has not met its burden to show that claims 8, 17, and 18 would have been obvious over Meyer. F. Alleged Obviousness over Meyer and Siebert Claim 2 depends from claim 1, and further recites “the nucleic acid fragment comprises genomic DNA.” Petitioner asserts that claim 2 would have been obvious over the combination of Meyer and Siebert. Pet. 62–65. Petitioner relies on Siebert for teaching the additional limitation recited in claim 2 only. Id. Because Petitioner has not shown that Meyer discloses step (c) of claim 1, and Petitioner does not rely on Siebert for teaching that limitation, we find Petitioner has not met its burden to show that claim 2 would have been obvious over the combination of Meyer and Siebert.” slip op. at 34
Patent outcomesUS 10,876,108 not shown unpatentableClaim construction§ 102 anticipation§ 103 obviousnesscites Phillips · KSR · GrahamPatents in suitUS 10,876,108 - Integrated Dna Technologies, Inc. v. Tecan Genomics, Inc.No claims unpatentablePTAB · Apr 6, 2026 · IPR2025-00015 · APJ Zhenyu Yang · IPR · Final written decision
Claims 1–3 and 5–22 were not shown unpatentable because Meyer does not disclose the claimed enrichment, and the other grounds rely on Meyer for that limitation.
RulingsFinal written decision- Skill levelSkill level board ownDecided for patent owner
“for purposes of this Decision, we find a POSA would have had a Ph.D. in the field of chemistry, molecular biology, or biochemistry. Alternatively, a POSA would have had a B.S. or M.S. degree with three to five years of experience working in any of those fields. Additionally, the POSA would have had experience with NGS sequencing methods and a working knowledge of how those methods functioned. Id. at 14. After institution, Patent Owner states that, for purposes of this proceeding, it adopts the Board’s definition of a POSA. PO Resp. 18. After reviewing the record developed during trial, we see no reason to change our finding on this issue. As we stated in the DI, our “definition of a POSA is consistent with the skill level reflected in the disclosures of the ’012 patent and prior art.” DI 14.” slip op. at 11
- Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed patent owner constructionDecided for patent owner
“to “enrich” means to “increase[] relative to the rest of the fragments.” Tr. 12:25–26. The panel asked: “In the starting material, there are three components, A, B, C, that say it’s 30 percent, 50 percent and 20 percent. You do PCR and it -- they all get amplified and the end result is still 30 percent, 50 percent, and 20 percent. Anything got enriched?” Id. at 12:18–21. Petitioner responded that “petitioner’s position is that in that situation, there is no enrichment.” Id. at 12:22–23. In other words, Petitioner does not disagree with Patent Owner that mere increase in the raw number is not enrichment. See also id. at 13:7–9 (“[W]e would agree that if it is truly unbiased amplification, that does not result in an increase in the proportion, and so that does not meet the plain meaning of enrich.”). We find the record, including the testimony from all three declarants, supports Patent Owner’s argument. See Sur-reply 1–5 (citing Ex. 1125, 283:1–6, 286:22–287:14; Ex. 1126, 170:18–171:1; Ex. 2037, 150:18–22, 173:15–17; Ex. 2038 ¶ 95), 8 (citing Ex. 1125, 271:10–15; Ex. 2037, 188:22–189:1). Thus, we adopt Patent Owner’s proposal that “a nucleic acid sequence of interest is ‘enriched’ when the proportion of nucleic acid fragments containing the sequence of interest is increased relative to other nucleic acid fragments in the sample.”9 See PO Resp. 19.” slip op. at 15
- Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)Not shown unpatentableNot shown unpatentable
“We agree with Dr. Sims. As explained above, the amplification step must result in at least some enrichment of the sequence of interest, even though it does not have to be the only cause. See supra Section II.C.2.b. Indeed, Petitioner acknowledges that “at least some of the enrichment must result from the recited steps.” Reply 12. Because Meyer’s enrichment for mRNA using the SMART protocol occurred before any recited steps of claim 1, we find it does not meet the claimed “enrichment” under our construction.” slip op. at 27
- Obviousness (§103) › Graham factors (scope of art, differences, level of skill)Not shown unpatentableNot shown unpatentable
“F. Alleged Obviousness over Meyer and Siebert Claim 2 depends from claim 1, and further recites “the nucleic acid fragment comprises genomic DNA.” Petitioner asserts that claim 2 would have been obvious over the combination of Meyer and Siebert. Pet. 69–72. Petitioner relies on Siebert for teaching the additional limitation recited in claim 2 only. Id. Because Petitioner has not shown that Meyer discloses step (d) of claim 1, and Petitioner does not rely on Siebert for teaching that limitation, we find Petitioner has not met its burden to show that claim 2 would have been obvious over the combination of Meyer and Siebert. G. Alleged Obviousness over Meyer and Kelley Claim 9 depends from claim 1, and further recites “the barcode sequence is 12 nucleotides in length.” Petitioner asserts that claim 9 would have been obvious over the combination of Meyer and Kelley. Pet. 72–74. Petitioner relies on Kelley for teaching the additional limitation recited in claim 9 only. Id. Because Petitioner has not shown that Meyer discloses step (d) of claim 1, and Petitioner does not rely on Kelley for teaching that limitation, we find Petitioner has not met its burden to show that claim 9 would have been obvious over the combination of Meyer and Kelley. H. Alleged Obviousness over Meyer, Caruccio, and Bronner Each of claims 15 and 17–19 depends from claim 1. Claim 15 further recites “the second strand of the partial duplex adaptor is ligated to a 3′ end of the nucleic acid fragment.” Claim 17 recites “[t]he method of claim 1, further comprising performing bridge amplification of the annealed strand after step e).” Claim 18 further recites “the sequencing comprises use of four labeled reversible terminators.” And claim 19 further recites “the sequencing comprises semiconductor sequencing.” Petitioner asserts that claims 15 and 17–19 would have been obvious over the combination of Meyer, Caruccio, and Bronner. Pet. 75–80. Petitioner relies on Caruccio and Bronner for teaching the additional limitation recited in claims 15 and 17–19 only. Id. Because Petitioner has not shown that Meyer discloses step (d) of claim 1, and Petitioner does not rely on Caruccio and Bronner for teaching that limitation, we find Petitioner has not met its burden to show that claims 15 and 17–19 would have been obvious over the combination of Meyer, Caruccio, and Bronner.” slip op. at 38
Patent outcomesUS 10,036,012 not shown unpatentableClaim construction§ 102 anticipation§ 103 obviousnesscites Phillips · KSR · GrahamPatents in suitUS 10,036,012 - Shanghai Hongene Biotech Corp. v. Chemgenes Corp.All claims unpatentablePTAB · Oct 17, 2024 · IPR2023-00862 · APJ Zhenyu Yang · IPR · Final written decision
Claims 1 and 2 are unpatentable because Aerschot anticipates them.
RulingsFinal written decision- Expert testimonyPetitioner expert creditedDecided for petitioner
“Patent Owner’s argument that Dr. Baran is principally experienced in P(V) chemistry presupposes that experience indicates an ignorance of P(III) chemistry. We do not find this position consistent with the breadth of Dr. Baran’s experience as indicated by his Curriculum Vitae. See Ex. 1003, 47–102. We weigh the testimonies of both Dr. Baran and Dr. Hrdlicka, against the cumulative weight of the evidence of record in assessing their credibility and probative value.” slip op. at 8
- Skill levelSkill level board ownOther
“The parties’ proposed definitions of the level of ordinary skill, although different facially, are similar substantively. For example, both parties argue that a POSA would have high levels of skill, with advanced degrees and/or extensive work experience in organic chemistry.3 See Pet. 12; PO Resp. 20–21. In addition, Petitioner contends that a POSA would have had experience in the development of oligonucleotide building blocks. Pet. 16. Similarly, Patent Owner asserts that a POSA would have had education and/or experience in “the development and syntheses of nucleosides, nucleotides, and nucleic acids.” PO Resp. 20–21. After considering the parties’ arguments and the prior art, we determine that a POSA would have had a Ph.D. (or equivalent degree) in organic chemistry or medicinal chemistry, with at least two to three years of post-graduate work experience in the development and syntheses of nucleosides, nucleotides, and nucleic acids, including, but not limited to, the syntheses of oligonucleotides through solid phase oligonucleotide synthesis. In addition, an individual with a Bachelor’s or Master’s degree and at least five years of work experience in these fields also would qualify as a POSA.” slip op. at 7
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededOther
“Claim terms need only be construed to the extent necessary to resolve the controversy. Wellman, Inc. v. Eastman Chem. Co., 642 F.3d 1355, 1361 (Fed. Cir. 2011). On this record and for purposes of this Decision, we see no need to address the construction of any claim term.” slip op. at 6
- Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)UnpatentableUnpatentable
“To show anticipation under 35 U.S.C. § 102, each and every claim element, arranged as in the claim, must be disclosed in a single piece of prior art. Net MoneyIN, Inc. v. VeriSign, Inc., 545 F.3d 1359 (Fed. Cir. 2008). For a claim directed to a genus, if a prior art reference discloses a species falling within the claimed genus, the species anticipates the genus. In re Slayter, 276 F.2d 408, 411 (CCPA 1960); see also Fresenius USA, Inc. v. Baxter Int’l, Inc., 582 F.3d 1288, 1298 (Fed. Cir. 2009) (stating that when a claim element is written in Markush form, “the entire element is disclosed by the prior art if one alternative in the Markush group is in the prior art”).” slip op. at 5
Patent outcomesUS 8,541,569 unpatentableClaim construction§ 102 anticipationcites PhillipsPatents in suitUS 8,541,569 - Shanghai Hongene Biotech Corp. v. Chemgenes Corp.All claims unpatentablePTAB · Jul 18, 2024 · IPR2023-00490 · APJ John G New · IPR · Final written decision
Claims 1–5 are unpatentable: claim 1 is anticipated by Reddy; claims 2–4 are obvious over the stated combinations; claim 5 is anticipated by Gaur.
RulingsFinal written decision- Skill levelSkill level patent owner adoptedDecided for patent owner
“However, we prefer Patent Owner’s definition of the required 2–3 years of experience in “the development and syntheses of nucleosides, nucleotides, and nucleic acids, including, but not limited to, the syntheses of oligonucleotides through solid phase oligonucleotide synthesis (‘SPOS’)” to Petitioner’s more generalized requirement of having experience in “medicinal chemistry, synthetic organic chemistry, and nucleic acid chemistry, including the development of oligonucleotide therapeutics, diagnostics, or building blocks.” Both parties acknowledge that the level of skill in the art is very high. See, e.g., Resp. 17; Reply 2. We find that, to achieve a level of ordinary skill in the art, a person with the requisite educational background would require 2–3 years of experience for one possessing a doctorate in the relevant field, or 3–5 years for one with a lesser degree (to compensate for the additional educational experience gained by achieving a doctorate) in the specific techniques recited by Patent Owner. We reject the terminal clause “pursuant to P(III) chemistry” proposed by Patent Owner as redundant in that a person engaged for a number of years in “the development and syntheses of nucleosides, nucleotides, and nucleic acids” including SPOS, would likely have an operant knowledge of P(III) chemistry. Consequently we adopt the following definition of a person of ordinary skill in the art: “A person of ordinary skill in the art having a Ph.D. (or equivalent degree) in organic or medicinal chemistry, and 2 to 3 years of post-graduate work experience in the development and syntheses of nucleosides, nucleotides, and nucleic acids, including, but not limited to, the syntheses of oligonucleotides through solid phase oligonucleotide synthesis (‘SPOS’)” and, alternatively, “a person of ordinary skill in the art would have a Bachelor’s or Master’s degree in organic or medicinal chemistry who had at least 5 years of extensive work experience in these fields.”” slip op. at 12
- Expert testimonyPetitioner expert creditedDecided for petitioner
“As for Dr. Baran, we are not persuaded by Patent Owner’s argument that Dr. Baran is not sufficiently experienced or qualified to opine with respect to the claimed subject matter. A review of Dr. Baran’s extensive curriculum vitae (Ex. 1003, 79–137), indicates that he is deeply experienced and extensively published in the field of oligonucleotide synthesis. Patent Owner’s argument that Dr. Baran is principally experienced in P(V) techniques presupposes that experience in that technique indicates an ignorance of P(III) methodologies. We do not find this position consistent with the breadth of Dr. Baran’s C.V. We will weigh Dr. Baran’s testimony, and that of Dr. Hrdlicka, against the cumulative weight of the evidence of record in this inter partes review in assessing the credibility and probative value of their respective testimonies.” slip op. at 13
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction needed
“Both parties agree that the terms of the challenged claims should be given the ordinary and customary meaning of such terms as understood by one of ordinary skill in the art and the prosecution history pertaining to the patent. Pet. 17; PO Resp. 15 (both citing 37 C.F.R. § 42.100). Accordingly we see no need for explicitly construing any of the terms of the challenged claims beyond that standard.” slip op. at 8
- Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed board ownDecided for petitioner
“Furthermore, both Petitioner and Patent Owner agree that clear errors exist in the wording of challenged claims 3–5. Both parties agree that a person of ordinary skill in the art would have recognized that the limitation reciting “where M is selected from the group consisting of succinyl, oxalyl, and hydroquinolynyl” should properly read “where M is selected from the group consisting of ethyl, oxalyl, and hydroquinolynyl.” Pet. 18–20; PO Resp. 15. Both parties further agree that the language of claim 5 mistakenly omits the italicized portions of the limitation reciting “NH is capable of being attached to a solid support with a spacer selected from the group consisting of C1–C20 alkyl, ethyloxyglycol, and a combination of alkyl and ethyleneglycoxy,” as is expressly recited in claims 3 and 4. Pet. 21–22 (citing Ex. 1003 ¶ 158); PO Resp. 15. We agree with both parties’ reasoning with respect to these errors, and we construe the claims as reciting the corrected language, such that claims 3–5 read, in relevant part “where M is selected from the group consisting of ethyl, oxalyl, and hydroquinolynyl” and claim 5 additionally reads “NH is capable of being attached to a solid support with a spacer selected from the group consisting of C1–C20 alkyl, ethyloxyglycol, and a combination of alkyl and ethyleneglycoxy.” See Fitbit, Inc. v. Valencell, Inc., 964 F.3d 1112, 1119–20 (Fed. Cir. 2020) (holding that the Board erred in not correcting a “conspicuous” and undisputed error in claim).” slip op. at 8
Patent outcomesUS 9,884,885 unpatentableClaim construction§ 102 anticipation§ 103 obviousnesscites Phillips · KSR · GrahamPatents in suitUS 9,884,885 - Dr. Reddy’S Laboratories, Inc. v. Genentech, Inc., Hoffman-La Roche AG, And Abbvie Inc.Rehearing grantedPTAB · Aug 10, 2023 · PGR2022-00023 · APJ Jeffrey N Fredman · PGR · Rehearing
On Patent Owner’s rehearing request, the Board held claim 25 unpatentable under § 112(a) because it depends from claim 14, which lacks written description support.
RulingsRehearing decision- RehearingRehearing, grantedGranted
“We therefore agree with Petitioner that we overlooked the correct dependency of claim 25. Claim 25, as a claim dependent from claim 14, lacks written descriptive support because claim 25 fails to cure the absence of descriptive support for claim 14.” slip op. at 4
- Disclosure Requirements (§112) › Written description (Ariad)Written description inadequateUnpatentable
“In the Final Written Decision, we determined that claim 14 lacked descriptive support. We noted that Claim 14, in particular, recites a GDC-0199 dosing regimen “compris[ing] a dose of 20 mg per day for one week, a dose of 50 mg per day for one week, a dose of 100 mg per day for one week, a dose of 200 mg of GDC-0199 per day for one week, and a dose of 400 mg per day.” Unlike for claim 1, such disclosure is not found in a single example, but results from picking and choosing three separate selections from column 24. “The written description requirement is not met when, as here, the specification provides at best disparate disclosures that an artisan might have been able to combine in order to make the claimed invention.” Flash-Control, LLC v. Intel Corp., 2021 WL 2944592 *4 (Fed. Cir. 2021) (citing Ariad, 598 F.3d at 1352.)” slip op. at 3
§ 112 disclosurePatents in suitUS 10,993,942 - Laboratory Corporation Of America Holdings v. Ravgen, Inc.No claims unpatentablePTAB · Nov 1, 2022 · IPR2021-00902 · APJ Timothy G Majors · IPR · Final written decision
Claims 81–96 and 133 were not shown unpatentable because a skilled artisan would not have been motivated to combine the asserted art with Chiu.
RulingsFinal written decision- Skill levelSkill level petitioner adoptedDecided for petitioner
“Patent Owner’s proposed POSA level is too broad. Under that proposal, an individual with, for example, an undergraduate degree in microbiology and three years’ work experience studying the habitats of bacteria might qualify as a POSA. It is not clear that such person would have sufficient, relevant experience in the detection of chromosomal abnormalities, especially through non-invasive methods for detecting fetal genetic abnormalities in maternal samples, as described in the ’277 patent and the prior art here. See, e.g., Ex. 1001, 1:31–5:59 (Field of Invention and Background Art); Ex. 1003 (Chiu). Petitioner’s proposal of the POSA level is more precise because it requires familiarity with techniques for detecting cell-free DNA in biological samples, which is relevant to the prior art and the claimed technology. Petitioner’s proposal also appears to be more consistent with the cited prior art. Okajima v. Bourdeau, 261 F.3d 1350, 14 1355 (Fed. Cir. 2001) (explaining that specific findings regarding ordinary skill level are not required where the prior art itself reflects an appropriate level and a need for testimony is not shown). Accordingly, we adopt Petitioner’s POSA level here, but note that our other determinations on this record would not change under Patent Owner’s POSA level.13” slip op. at 14
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededNot reached
“n.3; PO Sur-Reply 14–15; see generally Papers 51 and 52.14 It is not necessary for us to further construe those dependent claims to resolve this case. Petitioner relies on formaldehyde or formaldehyde donors, as disclosed in Bianchi, Granger, and Rao, to satisfy the claimed “agent” term, and urges the addition of such compounds to Chiu’s method for isolating and detecting cffDNA in a maternal sample. There is no dispute on this record that formaldehyde and formaldehyde donors meet the claimed “agent” term. We are, thus, able to determine if the asserted art discloses an “agent” as claimed and whether a POSA would have been motivated to add formaldehyde or a formaldehyde donor to Chiu, which issue we find is decisive here, without further interpreting dependent claims 90, 91, or 133. See Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co. Ltd., 868 F.3d 1013, 1017 (Fed. Cir. 2017) (“[W]e need only construe terms that are in controversy, and only to the extent necessary to resolve the controversy.”) (internal quotation marks omitted). 14 The disagreement on interpretation of this handful of dependent claims arose in relation to Rao’s prior-art status for those claims (Pet. Reply 5 n.3; PO Sur-Reply 14–15), and Patent Owner’s nexus showing for secondary considerations of nonobviousness (id. at 21). See Pet. Reply 3 n.2 (noting the priority “arguments are only relevant to Ground 3” because the prior art status of Chiu, Bianchi, or Granger is uncontested). But, as we discuss below, Petitioner’s challenge to the claims fails on this record regardless of the disagreement on Rao’s prior art status and, because Petitioner has not made the necessary threshold showing that a POSA would have combined the asserted art in the manner proposed, we need not reach secondary considerations of nonobviousness.” slip op. at 16
- Expert testimonyPatent owner expert creditedPetitioner expert discountedDecided for patent owner
“detection method of Chiu.27 More specifically, we find on this record that a POSA would have been dissuaded from adding Bianchi’s paraformaldehyde because the POSA would have expected Bianchi’s paraformaldehyde to create gaps in the cell membranes, providing a means for maternal DNA to escape into the sample. We also find on this record that a POSA would have been dissuaded from adding paraformaldehyde to Chiu’s methods because formaldehyde was known to damage nucleic acids.28 Patent Owner’s reasoning and evidence on those issues, separately and cumulatively, outweigh Petitioner’s comparatively weak showing on whether a POSA would have combined the art in the manner proposed. We discuss in greater detail below. We begin with the issue that paraformaldehyde contributes to permeabilization of the cellular membrane. We credit Dr. Van Ness’s opinion that adopting Bianchi’s approach to treating cells with paraformaldehyde creates a means for cellular DNA to escape. Ex. 2078 27 WBIP, LLC v. Kohler Co., 829 F.3d 1317, 1327 (Fed. Cir. 2016) (“Whether an ordinarily skilled artisan would have been motivated to modify the teachings of a reference is a question of fact.”) (citations omitted); Alza Corp. v. Mylan Labs., Inc., 464 F.3d 1286, 1289 (Fed. Cir. 2006) (“The presence or absence of a motivation to combine references in an obviousness determination is a pure question of fact”). 28 When asked whether he considered “any differences between paraformaldehyde and formaldehyde that might be relevant to DNA damage in forming your opinions,” Dr. Edwards testified “[t]here should be no differences” and that “[i]n this field, these terms are often used interchangeably.” Ex. 2299, 69:3–20. We find, therefore, that the issues, including DNA damage, with formaldehyde would have been understood to also apply to paraformaldehyde on this record. 38 ¶¶ 96–98; Ex. 2101, 106:4–19 (testimony of Dr. Edwards agreeing that “DNA is one thing that can escape a cell when you permeabilize it”). Although Bianchi discloses a desire to keep “substantially all” of the target molecules inside the cells, by Bianchi’s own definition, “substantially all” includes leakage of up to 50% of the target molecules and cellular DNA. Ex. 1004, 1:42–49; Ex. 2078 ¶¶ 99–101. We find that increasing potential leakage of DNA from the maternal cells runs counter to Chiu’s objectives. As Dr. Edwards concedes, “DNA leaking out of cells” is something “Chiu tells us you do not want it to happen.” Ex. 2101, 107, 21–25.” slip op. at 38
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation not foundNot shown unpatentableNot shown unpatentable
“detection method of Chiu.27 More specifically, we find on this record that a POSA would have been dissuaded from adding Bianchi’s paraformaldehyde because the POSA would have expected Bianchi’s paraformaldehyde to create gaps in the cell membranes, providing a means for maternal DNA to escape into the sample. We also find on this record that a POSA would have been dissuaded from adding paraformaldehyde to Chiu’s methods because formaldehyde was known to damage nucleic acids.28 Patent Owner’s reasoning and evidence on those issues, separately and cumulatively, outweigh Petitioner’s comparatively weak showing on whether a POSA would have combined the art in the manner proposed. We discuss in greater detail below. We begin with the issue that paraformaldehyde contributes to permeabilization of the cellular membrane. We credit Dr. Van Ness’s opinion that adopting Bianchi’s approach to treating cells with paraformaldehyde creates a means for cellular DNA to escape. Ex. 2078 27 WBIP, LLC v. Kohler Co., 829 F.3d 1317, 1327 (Fed. Cir. 2016) (“Whether an ordinarily skilled artisan would have been motivated to modify the teachings of a reference is a question of fact.”) (citations omitted); Alza Corp. v. Mylan Labs., Inc., 464 F.3d 1286, 1289 (Fed. Cir. 2006) (“The presence or absence of a motivation to combine references in an obviousness determination is a pure question of fact”). 28 When asked whether he considered “any differences between paraformaldehyde and formaldehyde that might be relevant to DNA damage in forming your opinions,” Dr. Edwards testified “[t]here should be no differences” and that “[i]n this field, these terms are often used interchangeably.” Ex. 2299, 69:3–20. We find, therefore, that the issues, including DNA damage, with formaldehyde would have been understood to also apply to paraformaldehyde on this record. 38 ¶¶ 96–98; Ex. 2101, 106:4–19 (testimony of Dr. Edwards agreeing that “DNA is one thing that can escape a cell when you permeabilize it”). Although Bianchi discloses a desire to keep “substantially all” of the target molecules inside the cells, by Bianchi’s own definition, “substantially all” includes leakage of up to 50% of the target molecules and cellular DNA. Ex. 1004, 1:42–49; Ex. 2078 ¶¶ 99–101. We find that increasing potential leakage of DNA from the maternal cells runs counter to Chiu’s objectives. As Dr. Edwards concedes, “DNA leaking out of cells” is something “Chiu tells us you do not want it to happen.” Ex. 2101, 107, 21–25.” slip op. at 38
Patent outcomesUS 7,332,277 not shown unpatentableClaim construction§ 103 obviousnesscites KSR · GrahamPatents in suitUS 7,332,277 - Slayback Pharma LLC v. Sumitomo Dainippon Pharma Co., Ltd.All claims unpatentablePTAB · Jan 20, 2022 · IPR2020-01053 · APJ Zhenyu Yang · IPR · Final written decision
Claims 1–75 are unpatentable as obvious over Saji; the Board did not reach the Latuda Information anticipation or Latuda Information and Loebel obviousness grounds.
RulingsFinal written decision- Skill levelSkill level patent owner adoptedDecided for patent owner
“We do not discern an appreciable difference in the parties’ respective definitions of the level of ordinary skill in the art, and any perceived distinction does not impact our Decision. Indeed, as Patent Owner acknowledges, the parties’ proposed definitions of the ordinary skill level do “not differ significantly.” Id. at 25. Nevertheless, for purposes of this Decision, we adopt Patent Owner’s definition of the skill level, as it is consistent with the ’827 patent disclosures and the prior art of record, and more inclusively describes the suitable experience for one of ordinary skill in the art. We further note that, in this case, the prior art itself demonstrates the level of skill in the art at the time of the invention. 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
“On this record, we find Petitioner’s proposed constructions are supported by intrinsic and extrinsic evidence. See Pet. 18–23. We agree with Petitioner here that “a patient” or “the patient” should have its ordinary and customary meaning of “one or more patients,” as opposed to a “patient population” as Patent Owner has previously argued in a district court litigation involving another party. See id. at 19–20. Indeed, Patent Owner agrees. See Reply 19 (“There is no dispute that ‘a patient,’ as recited in the ’827 claims, refers to ‘one or more patients.’”). We also agree with Petitioner that the dependent claims requiring treating patients with schizophrenia and manic depressive psychosis supports the conclusion that “treating a patient with an antipsychotic” in independent claims 25, 40, and 56 includes treatment of a patient with these particular diseases. See Pet. 20–21. 10 On this record, we further agree with Petitioner that “manic depressive psychosis” would be interpreted by a person or ordinary skill in the art as “bipolar disorder,” which includes Bipolar I Disorder, Bipolar II Disorder, Cyclothymia, and Bipolar Disorder Not Otherwise Specified. See id. at 21–22 (citations omitted); see also PO Resp. 3 (“Bipolar disorder, once known as manic depressive psychosis.”). Thus, for purposes of this Decision, we adopt Petitioner’s proposed constructions.” slip op. at 10
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededDecided for petitioner
“On this record and for purposes of this Decision, we see no need to construe any other term expressly. See Wellman, Inc. v. Eastman Chem. Co., 642 F.3d 1355, 1361 (Fed. Cir. 2011) (stating that claim terms need only be construed to the extent necessary to resolve the controversy).” slip op. at 11
- Obviousness (§103) › Graham factors (scope of art, differences, level of skill)UnpatentableUnpatentable
Patent outcomesUS 9,815,827 unpatentableClaim construction§ 103 obviousnesscites Phillips · KSR · GrahamPatents in suitUS 9,815,827 - Slayback Pharma LLC v. Sumitomo Dainippon Pharma Co., Ltd.All claims unpatentablePTAB · Dec 7, 2021 · IPR2020-01053 · APJ Zhenyu Yang · IPR · Final written decision
Claims 1–75 are unpatentable as obvious over Saji; the Board did not reach the Latuda Information anticipation and Latuda Information–Loebel obviousness grounds.
RulingsFinal written decision- Skill levelSkill level patent owner adoptedDecided for patent owner
“We do not discern an appreciable difference in the parties’ respective definitions of the level of ordinary skill in the art, and any perceived distinction does not impact our Decision. Indeed, as Patent Owner acknowledges, the parties’ proposed definitions of the ordinary skill level do “not differ significantly.” Id. at 25. Nevertheless, for purposes of this Decision, we adopt Patent Owner’s definition of the skill level, as it is consistent with the ’827 patent disclosures and the prior art of record, and more inclusively describes the suitable experience for one of ordinary skill in the art.” slip op. at 9
- Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed petitioner constructionDecided for petitioner
“On this record, we find Petitioner’s proposed constructions are supported by intrinsic and extrinsic evidence. See Pet. 18–23. We agree with Petitioner here that “a patient” or “the patient” should have its ordinary and customary meaning of “one or more patients,” as opposed to a “patient population” as Patent Owner has previously argued in a district court litigation involving another party. See id. at 19–20. Indeed, Patent Owner agrees. See Reply 19 (“There is no dispute that ‘a patient,’ as recited in the ’827 claims, refers to ‘one or more patients.’”).” slip op. at 10
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededOther
“On this record and for purposes of this Decision, we see no need to construe any other term expressly. See Wellman, Inc. v. Eastman Chem. Co., 642 F.3d 1355, 1361 (Fed. Cir. 2011) (stating that claim terms need only be construed to the extent necessary to resolve the controversy).” slip op. at 11
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundReasonable expectation foundUnpatentable
“Based on Saji’s preferred dose range of 5 to 100 mg/day, which overlaps with the “from 20 to 120 mg/day” range required by each challenged independent claim, Petitioner argues that an ordinarily skilled artisan would have been “motivated to conduct dose ranging studies and would find the claimed dosing regimens.” Pet. 62; see also id. at 55 (contending that “dose ranging was a routine part of drug development” (citing Ex. 1030)). Dr. Stahl’s testimony supports Petitioner’s argument. Indeed, Dr. Stahl testifies that, although with some drugs, it can be difficult to find a safe and effective dose, or to get an effective dose into the patient, neither is the case with lurasidone. Ex. 1054, 141:3–14; see also id. at 142:2–6 (“Q. [A]re you aware of any particular difficulties with lurasidone hydrochloride and finding a safe and effective dose for schizophrenia and manic depressive psychosis? A. No.”); 135:18–25 19 (Dr. Stahl testifying that he is “not aware of anything unusual about [lurasidone’s] dose range”). Thus, we agree with Petitioner that an ordinarily skilled artisan, starting from Saji’s preferred dosing range, would have conducted routine dose ranging studies and identified the claimed dosing regimens.” slip op. at 19
Patent outcomesUS 9,815,827 unpatentableClaim construction§ 103 obviousnesscites Phillips · KSR · GrahamPatents in suitUS 9,815,827 - Liquidia Technologies, Inc. v. United Therapeutics CorporationSome claims unpatentablePTAB · Oct 8, 2021 · IPR2020-00770 · APJ John E Schneider · IPR · Final written decision
Claims 1–5, 8, and 9 are unpatentable as obvious over Moriarty and Phares; claims 6 and 7 were not shown unpatentable over either asserted ground.
RulingsFinal written decision- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededDecided for patent owner
“Claim terms need only be construed to the extent necessary to resolve the controversy. Wellman, Inc. v. Eastman Chem. Co., 642 F.3d 1355, 1361 (Fed. Cir. 2011). Here, we do not need to define the outer bounds of the term “pharmaceutical batch” because the parties’ dispute over this term centers on the issue of storage stability.7 Patent Owner argues “the correct construction 6 The parties use the terms “purification” and “isolation” interchangeably in the papers. We use the term “isolation” in this Decision. 7 The parties agree on the “pharmaceutical” aspect of the term. We note the ’901 patent defines “pharmaceutically acceptable” as “being useful in preparing a pharmaceutical composition that is generally safe, non-toxic and neither biologically nor otherwise undesirable and includes being useful for veterinary use as well as human pharmaceutical use.” Ex. 1001, 5:27–31.” slip op. at 19
- Claim Construction › Intrinsic evidence (Phillips canons) › Prosecution history disclaimer / disavowalTerm construed patent owner constructionDecided for patent owner
“[A]n invention is construed not only in the light of the claims, but also with reference to the file wrapper or prosecution history in the Patent Office.” Graham, 383 U.S. 1, 33. “The prosecution history of a related patent can be relevant if . . . it addresses a limitation in common with the patent in suit.” Advanced Cardiovascular Sys., Inc. v. Medtronic, Inc., 265 F.3d 1294, 1305 (Fed. Cir. 2001); see also Elkay Mfg. Co. v. Ebco Mfg. Co., 192 F.3d 973, 980 (Fed. Cir. 1999) (“When multiple patents derive from the same initial application, the prosecution history regarding a claim limitation in any patent that has issued applies with equal force to subsequently issued patents that contain the same claim limitation.”). Here, the Specification of the ’901 patent includes the same language “crude treprostinil salts can be stored as raw material at ambient temperature” addressed in the prosecution of the parent ’623 application. Ex. 1001, 17:5–6. More importantly, challenged claim 6 recites the same limitation “preparing a pharmaceutical product . . . after storage” the applicant expressly interpreted there. See Ex. 2028, 193. Because “the same claim limitation is at issue, prosecution disclaimer made on the same limitation in an ancestor application will attach,” the applicant’s interpretation of “storing”/“storage” during the prosecution of the ’623 application applies here. See Omega Eng’g, Inc., v. Raytek Corp., 334 F.3d 1314, 1333 (Fed. Cir. 2003). slip op. at 23
- Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed patent owner constructionDecided for patent owner
“Sunovion Pharm., Inc. v. Teva Pharm. USA, Inc., 731 F.3d 1271, 1276 (Fed. Cir. 2013). Here, step (c) of challenged claim 1 requires “contacting the solution comprising treprostinil from step (b) with a base to form a salt of treprostinil.” Ex. 1001, 17:27–29 (emphasis added). The claim language itself, thus, dictates that the solution formed in step (b), and not treprostinil isolated from step (b), is the starting material for forming a salt in step (c). The Specification of the ’901 patent supports our determination. Indeed, the Specification touts that one of the advantages of the disclosed process is that “the treprostinil salts can be synthesized from the solution of treprostinil without isolation,” because “[t]he impurities carried over from intermediate steps (i.e. alkylation of triol and hydrolysis of benzindene nitrile) are removed during the carbon treatment and the salt formation step.” Ex. 1001, 17:1–11. As a result, we agree with the argument presented in the Patent Owner Response that “claim 1 requires the solution in which treprostinil is formed be used directly in the next salt-forming step without isolating treprostinil in between.” See PO Resp. 11.” slip op. at 27
- Skill levelSkill level board ownOther
“pharmaceutical manufacturing.” Id. at 23. We find Patent Owner’s definition of the skill level too narrow. Patent Owner relies on the declaration of Dr. Pinal, who testifies that the ’901 patent is “focused on the production of pharmaceutical compositions and products, on a commercial batch-size scale.” Ex. 2002 ¶ 91; see also id. ¶ 92 (opining that organic and medicinal chemists do not have the “requisite skill set for the large-scale manufacture” of drugs); PO Resp. 24 (arguing an ordinarily skilled artisan is aware of “problems encountered in preparing a commercial-scale pharmaceutical product”).” slip op. at 29
Patent outcomesUS 9,604,901 mixedClaim construction§ 103 obviousnesscites Phillips · KSR · GrahamPatents in suitUS 9,604,901 - Pfizer, Inc. / Samsung Bioepis Co., Ltd. v. Genentech, Inc.Some claims unpatentablePTAB · Nov 29, 2018 · IPR2017-02139 · APJ Robert A Pollock · IPR · Final written decision
Claims 1, 2, 4, 25, 29–31, 33, 62–64, 66, 67, 69, 72, 78, 80, and 81 are unpatentable; the remaining challenged claims were not shown unpatentable.
RulingsFinal written decision- PTAB / AIA Trials › Joinder §315(c) / SAS all-or-nothingJoinder, grantedGranted
“Petitioner Samsung Bioepis Co., Ltd. (“Bioepis”) timely submitted a Petition presenting substantially the same challenges as set forth in Pfizer’s Petition along with a request for joinder to IPR2017-01488. IPR2017- 02139. Paper 1. We granted Bioepis’s Petition and associated request for joinder to this case. IPR2017-02139, Paper 11, 6–7.” slip op. at 3
- Skill levelSkill level patent owner adoptedDecided for patent owner
“B. Person of Ordinary Skill in the Art The parties propose similar definitions of a person of ordinary skill for the ’213 patent. See Pet. 15–16; Prelim. Resp. 18; PO Resp. 18. In our institution decision, we adopted Patent Owner’s proposal that “[a] person of ordinary skill for the ’213 patent would have had a Ph.D. or equivalent in chemistry, biochemistry, structural biology, or a closely related field, and experience with antibody structural characterization, engineering, and/or biological testing, or an M.D. with practical academic or industrial experience in antibody development.” Dec. 8. Petitioners do not contest this definition in its Reply and we find no reason to revise our earlier determination.” slip op. at 11
- Claim Construction › Intrinsic evidence (Phillips canons) › Lexicography (patentee as own lexicographer)Term construed petitioner constructionDecided for petitioner
“variable domain,” which appears in claims 4, 33, 62, and 69, to mean “a human variable domain which comprises the most frequently occurring amino acid residues at each location in all human immunoglobulins of any particular subclass or subunit structure.” Prelim. Resp. 18–19; PO Resp. 19. Patent Owner correctly points out that this “construction comes directly from the definition provided in the ’213 patent.” Prelim. Resp. 19 (citing Ex. 1001, 11:32–38). Petitioners expressly adopt this construction in their Reply. Pet. Reply 5–6. We do not agree, however, that the claims demand a consensus of “all” human immunoglobulins in the literal sense. Indeed, Petitioners point out that “the ‘consensus’ sequence used for the patent variants was generated using the most common residue at each position identified in [Kabat 198711].” Pet. Reply 15 (citations omitted). And though Patent Owner attempts to distinguish Queen 1990 as describing “a consensus framework from many human antibodies,’ not all as in the ’213 patent,’” it presents no argument as to why we should interpret the claim in this manner. 11 Kabat et al., Sequences of Proteins of Immunological Interest: Tabulation and Analysis of Amino Acid and Nucleic Acid Sequences of Precursors, V- Regions, C-Regions, J-Chain, T-Cell Receptor for Antigen, T-Cell Surface Antigens β2-Microglobulin, Major Histocompatibility Antigens, Thy-1 Complement, C-Reactive Protein, Thymopoietin, Post-Gamma Globulin, and α2-Macroblobulin, 41–175 (4th Ed. 1987). Ex. 1052. See PO Resp. 47. Moreover, in a parallel proceeding involving the same patent, Patent Owner did not dispute that the reference to “all sequences” in the patent, “refer[s] to all known sequences and there’s no dispute . . . that was really synonymous with Kabat 1987.” See IPR2017-01374 Paper 82, Tr. 15:4–16:4; see Ex. 1202 ¶ 157; Ex. 2105 ¶¶ 24–25; Ex. 2107 ¶¶ 18–19; Ex. 1198, 56:20–61:24; Ex. 1199, 27:14–28:13, 29:25–36:2, 57:1–58:6, 115:7–17, 165:17–169:9. Indeed, in a similar parallel proceeding, counsel for Patent Owner acknowledged that the term “all human immunoglobulins” refers to “all reasonably available[,] all known at the time of the invention.” IPR2017-01373, Paper 83, 47:21–48:5. Accordingly, we adopt the parties’ proposed construction, with a clarifying modification, specifically, “a human variable domain which comprises the most frequently occurring amino acid residues at each location in all human immunoglobulins of any particular subclass or subunit structure, as set forth in Kabat 1987.”” slip op. at 13
- Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed board ownDecided for patent owner
“lacks immunogenicity compared to a non-human parent antibody upon repeated administration to a human patient.” In our institution decision, we determined that this claim language “refer[s] to a humanized antibody having reduced immunogenicity in a human patient as compared to its non-humanized parent antibody.” Dec. 10–12. Neither party disputes this interpretation. See PO Resp. 19; Pet. Reply 5–6. Consistent with claim 63’s express comparison between the immunogenicity of the claimed humanized antibody and that of its non-human parent, the Specification states that one object of the invention is to “to provide methods for the preparation of antibodies which are less antigenic in humans than non-human antibodies but have desired antigen binding and other characteristics and activities.” Ex. 1001, 4:24–28. The Specification similarly states that embodiments within the scope of the claims have “low immunogenicity,” or are designed to “minimize the potential immunogenicity of the resulting humanized antibody in the clinic.” Id. at 52:54–58, 61:56–61. Moreover, with reference to claim 63 in particular, Patent Owner points to the ’272 application as “explain[ing] that the purpose of humanizing antibodies using its consensus sequence approach is to reduce immunogenicity versus the non-human parent antibody. (Id., 6:24–30, 84:24–30.).” Prelim. Resp. 42 (citing Ex. 2032 (File History for U.S. Patent Application No. 07/715,272 (“the ’272 application”)); see also id. at 38 (indicating that the limitation is satisfied where “[o]nly 1 out of 885 patients experienced an immunogenic response . . . which was a substantial improvement over the murine 4D5 antibody”). In light of the above, we do not alter our prior determination that “[a] humanized antibody which lacks immunogenicity compared to a non-human parent antibody upon repeated administration to a human patient,” refers to a humanized antibody having reduced immunogenicity in a human patient as compared to its non-humanized parent antibody.” slip op. at 14
Patent outcomesUS 6,407,213 mixedClaim construction§ 102 anticipation§ 103 obviousness§ 112 disclosurecites KSR · GrahamPatents in suitUS 6,407,213
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.