`571-272-7822
`
`Paper 47
`Date: August 18, 2020
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`UNITED STATES PATENT AND TRADEMARK OFFICE
`
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
`
`FOUNDATION MEDICINE, INC.,
`Petitioner,
`v.
`GUARDANT HEALTH, INC.,
`Patent Owner.
`
`IPR2019-00652
`Patent 9,834,822 B2
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`Before SUSAN L. C. MITCHELL, TINA E. HULSE, and KRISTI L. R.
`SAWERT, Administrative Patent Judges.
`SAWERT, Administrative Patent Judge.
`
`
`
`
`JUDGMENT
`Final Written Decision
`Determining Some Claims Unpatentable
`Dismissing in Part and Denying in Part Petitioner’s Motion to Exclude
`Dismissing in Part and Denying in Part Patent Owner’s Motion to Exclude
`35 U.S.C. § 318(a)
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`EX1074
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`IPR2019-00652
`Patent 9,834,822 B2
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`INTRODUCTION
`I.
`This is a Final Written Decision in an inter partes review challenging
`the patentability of claims 1–13 and 17–20 (“the challenged claims”) of
`U.S. Patent No. 9,834,822 B2 (Ex. 1001, “the ’822 patent”). We have
`jurisdiction under 35 U.S.C. § 6 and enter this Decision pursuant to
`35 U.S.C. § 318(a) and 37 C.F.R. § 42.73. For the reasons set forth below,
`we determine that Petitioner has shown, by a preponderance of the evidence,
`that claims 1–11, 13, and 17–20 are unpatentable. We determine that
`Petitioner has not shown, by a preponderance of the evidence, that claim 12
`is unpatentable. See 35 U.S.C. § 316(e) (2012).
`A. Procedural History
`Foundation Medicine, Inc. (“Petitioner”) filed a Petition for an inter
`partes review under 35 U.S.C. § 311. Paper 2 (“Pet.”). Petitioner supported
`its Petition with the Declaration of Stacey Gabriel, Ph.D. Ex. 1002.
`Guardant Health, Inc. (“Patent Owner”) filed a Preliminary Response.
`Paper 6. On our authorization (Paper 9), Petitioner filed a Reply to Patent
`Owner’s Preliminary Response (Paper 11).
`On August 19, 2019, pursuant to 35 U.S.C. § 314(a), we instituted
`trial to determine whether any challenged claim of the ’822 patent is
`unpatentable based on the grounds raised in the Petition:
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`Claims Challenged 35 U.S.C. § Reference(s)/Basis
`1–13, 17–20
`103(a)1
`Schmitt,2 Schmitt 2012,3 and Fan4 or
`Forshew5
`
`Paper 12, 7, 36 (“Institution Decision” or “Inst. Dec.”).
`Patent Owner filed a Response. Paper 26 (“PO Resp.”). Patent
`Owner supported its Response with the Declaration of Jay Shendure, M.D.,
`Ph.D., Ex. 2023, and the Declaration of John Quackenbush, Ph.D., Ex. 2025.
`Petitioner filed a Reply to Patent Owner’s Response. Paper 32 (“Pet.
`Reply”). Petitioner supported its Reply with a Reply Declaration of
`Dr. Gabriel. Ex. 1104. Patent Owner filed a Sur-Reply. Paper 34 (“PO Sur-
`Reply”). Patent Owner supported its Sur-Reply with a Supplemental
`Declaration of Dr. Quackenbush. Ex. 2042.
`
`
`1 The Leahy-Smith America Invents Act (“AIA”), Pub. L. No. 112-29,
`125 Stat. 284, 287–88 (2011), amended 35 U.S.C. § 103, effective March 16,
`2013. Because the challenged claims have an effective filing date before
`this date, the pre-AIA version of § 103 applies.
`2 Michael Schmitt et al., U.S. Patent No. 9,752,188 B2, issued Sept. 5,
`2017 (Ex. 1011, “Schmitt”).
`3 Michael W. Schmitt et al., Detection of Ultra-rare Mutations by
`Next-generation Sequencing, 109(36) PROC. NATL. ACAD. SCI. 14508–513
`(2012) (Ex. 1047, “Schmitt 2012”).
`4 Christina Fan et al., Noninvasive diagnosis of fetal aneuploidy by
`shotgun sequencing DNA from maternal blood, 105(42) PROC. NATL. ACAD.
`SCI. 16266–271 (2008) (Ex. 1048, “Fan”)
`5 Tim Forshew et al., Noninvasive Identification and Monitoring of
`Cancer Mutations by Targeted Deep Sequencing of Plasma DNA, 4(136)
`SCI. TRANSL. MED. 1–34 (2012) (Ex. 1004, “Forshew”).
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`Petitioner and Patent Owner each filed respective Motions to Exclude
`Evidence. See Paper 38 (“Pet. Mot.”); Paper 39 (“PO Mot.”). Petitioner
`filed an Opposition to Patent Owner’s Motion, Paper 40 (“Pet. Opp.”), to
`which Patent Owner filed a Reply, Paper 42 (“PO Reply”). Patent Owner
`filed an Opposition to Petitioner’s Motion, Paper 41 (“PO Opp.”), to which
`Petitioner filed a Reply, Paper 43 (“Pet. Reply Opp.”).
`An oral hearing was held on May 13, 2020. A transcript of the
`hearing is included in the record. Paper 46 (“Tr.”).
`B. Real Parties in Interest
`Petitioner identifies Foundation Medicine, Inc., Roche Holdings, Inc.,
`Roche Finance Ltd., and Roche Holding Ltd. as the real parties-in-interest.
`Pet. 73. Patent Owner identifies Guardant Health, Inc., as the real party-in-
`interest. Paper 4, 2.
`C. Related Matters
`Patent Owner has asserted the ’822 patent against Petitioner in
`Guardant Health, Inc. v. Foundation Medicine, Inc., Case No. 17-cv-1616
`(D. Del.) (“the co-pending litigation”). Pet. 74; Paper 4, 2. Patent Owner
`has also asserted the ’822 patent against Personal Genome Diagnostics, Inc.
`(“PGDx”) in Guardant Health, Inc. v. Personal Genome Diagnostics, Inc.,
`Case No. 17-cv-1623 (D. Del.). Pet. 74; Paper 4, 2.
`Petitioner filed a second petition seeking inter partes review of the
`’822 patent, designated IPR2019-00653. Paper 4, 2. A Decision denying
`institution in that case was issued on August 19, 2019 (Paper 12), and a
`Decision denying Petitioner’s request for rehearing issued on January 22,
`2020 (Paper 14).
`Petitioner also filed several petitions seeking inter partes review of
`patents related to the ’822 patent, including: IPR2017-01170, IPR2017-
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`01447, and IPR2017-01448 (challenging U.S. Patent No. 9,340,830);
`IPR2019-00130 (challenging U.S. Patent No. 9,598,731); IPR2019-00634
`(challenging U.S. Patent No. 9,840,743); and IPR2019-00636 and IPR2019-
`00637 (challenging U.S. Patent No. 9,902,992). Of these cases, only
`IPR2019-00634 is pending.
`PGDx also filed petitions seeking post-grant review of the ’822
`patent, designated PGR2018-00058, and of U.S. Patent No. 9,840,743,
`designated PGR2018-00057. Id. at 2. Both petitions were dismissed before
`a decision on institution.
`D. Summary of the ’822 Patent
`The ’822 patent relates to methods for detecting rare mutations and
`copy number variations in cell free polynucleotides. Ex. 1001, code (57).
`The ’822 patent states that cell-free DNA (“cfDNA”), found in different
`types of bodily fluids, may be used to detect and monitor disease. Id. at
`1:29–45. For instance, cfDNA may contain genetic aberrations—like a
`change in copy number variations and/or single or multiple sequence
`variations associated with a particular disease—that can be used to detect or
`monitor such disease. Id. at 1:29–41, 30:8–14. The ’822 patent states that
`“there is a need in the art for improved methods and systems for using cell
`free DNA to detect and monitor disease.” Id. at 1:41–45.
`The ’822 patent states that the disclosed methods generally “comprise
`sample preparation, or the extraction and isolation of cell free polynucleotide
`sequence[s] from a bodily fluid; subsequent sequencing of cell free
`polynucleotides by techniques known in the art; and application of
`bioinformatics tools to detect rare mutations and copy number variations as
`compared to a reference.” Id. at 30:4–14. The ’822 patent states that
`“[s]ample preparation typically involves converting polynucleotides in a
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`sample into a form compatible with the sequencing platform used.” Id. at
`32:58–61. “This conversion [c]an involve tagging polynucleotides” with
`“polynucleotide sequence[s].” Id. at 32:61–63. The ’822 patent refers to
`these polynucleotide sequences as “identifiers.” Id. at 38:3–6. The
`identifier may be a molecular barcode. Id. at 38:6–7.
`The ’822 patent explains that “the efficient conversion of individual
`polynucleotides in a sample of initial genetic material into sequence-ready
`tagged parent polynucleotides” is an important tool “for detecting with high
`sensitivity genetic variation in a sample of initial genetic material.” Id. at
`32:33–39. According to the ’822 patent, efficient conversion “increase[s]
`the probability that individual polynucleotides in a sample of initial genetic
`material will be represented in a sequence-ready sample” and “can produce
`sequence information about more polynucleotides in the initial sample.” Id.
`at 32:39–42.
`
`The ’822 patent states that the parent polynucleotides may be tagged
`with either unique or non-unique identifiers. Id. at 37:44–49; see also id. at
`3:10–15 (stating that, in some embodiments, the barcodes are unique, but in
`other embodiments, the barcodes are not unique); see also id. at 6:26–28
`(stating that, in some embodiments, “each tagged parent polynucleotide in
`the set is uniquely tagged,” whereas in other embodiments, “the tags are
`non-unique”). In the case of non-uniquely tagged parent polynucleotides,
`the ’822 patent explains that “the use of non[-]unique barcodes, in
`combination with sequence data at the beginning (start) and end (stop)
`portions of individual sequencing reads and sequencing read length may
`allow for the assignment of a unique identity to individual sequences.” Id. at
`37:43–48.
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`E. Illustrative Claim
`Claim 1 is the only independent claim. Claims 2–13 and 17–20
`depend directly from claim 1. See Ex. 1001, 62:51–64:22. Claim 1 is
`illustrative and reproduced below:
`1. A method, comprising:
`
`
`a) providing a population of cell-free DNA (“cfDNA”)
`molecules obtained from a bodily sample from a subject;
`
`
`b) converting the population of cfDNA molecules into a
`population of non-uniquely tagged parent polynucleotides,
`wherein each of
`the non-uniquely
`tagged parent
`polynucleotides comprises (i) a sequence from a cfDNA
`molecule of the population of cfDNA molecules, and (ii) an
`identifier sequence comprising one or more polynucleotide
`barcodes;
`
`
`c) amplifying the population of non-uniquely tagged parent
`polynucleotides to produce a corresponding population of
`amplified progeny polynucleotides;
`
`
`amplified progeny
`the population of
`d) sequencing
`polynucleotides to produce a set of sequence reads;
`
`
`e) mapping sequence reads of the set of sequence reads to one
`or more reference sequences from a human genome;
`
`
`f) grouping the sequence reads into families, each of the
`families comprising sequence reads comprising the same
`identifier sequence and having the same start and stop
`positions, whereby each of the families comprises sequence
`reads
`amplified
`from
`the
`same
`tagged parent
`polynucleotide;
`
`
`g) at each genetic locus of a plurality of genetic loci in the one
`or more reference sequences, collapsing sequence reads in
`each family to yield a base call for each family at the genetic
`locus;
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`h) determining a frequency of one or more bases called at the
`locus from among the families.
`
`
`Ex. 1001, 62:18–48.
`II. PETITIONER’S MOTION TO EXCLUDE
`Petitioner moves to exclude Exhibits 2002, 2032, 2036, 2037, 2038,
`2039, 2040, and 2041 in their entirety and Exhibits 2023 and 2025 in whole
`or in part. Pet. Mot. 1.
`We dismiss as moot Petitioner’ Motion to Exclude as it relates to
`Exhibits 2002, 2032, 2036, 2037, 2038, 2039, 2040, and 2041, for the
`following reasons. First, we do not rely on or cite to Exhibits 2032, 2036,
`2037, or 2038 in this Decision. Second, Patent Owner cites to Exhibits
`2002, 2039, 2040, and 2041 as support for its arguments about reasonable
`expectation of success. To the extent we refer to these exhibits herein, we
`determine that the record as a whole supports Petitioner’s position as to
`reasonable expectation of success. Infra § IV.E.2.b. Third, Exhibit 2023 is
`the Declaration of Dr. Shendure that is limited in scope to the applicability
`of Schmitt to cfDNA. Ex. 2023 ¶¶ 16–37. Again, to the extent we refer to
`Exhibit 2023, we determine that the record as a whole supports Petitioner’s
`position as to motivation to combine the Schmitt references with Fan or
`Forshew and as to reasonable expectation of success. Infra § IV.E.2.a–b.
`Thus, as to Exhibits 2002, 2023, 2032, 2036, 2037, 2038, 2039, 2040, and
`2041, on which we do not rely to support our decision, Petitioner’s Motion
`to Exclude is dismissed as moot.
`Exhibit 2025 is the Declaration of Dr. Quackenbush. Petitioner
`contends that Dr. Quackenbush’s Declaration should be excluded under
`Federal Rules of Evidence 702, 703, 705, and 401–403. Pet. Mot. 5–7.
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`Specifically, Petitioner contends that we should exclude at least certain
`paragraphs of Dr. Quackenbush’s Declaration because “they lack a disclosed
`basis of sufficient facts or data,” “are not based on sufficient facts or data,
`the product of reliable principles and methods, and/or a reliable application
`of the principles and methods to the facts,” and “are misleading, confusing,
`and/or needlessly cumulative.” Id. at 5.
`We have considered Petitioner’s arguments but are not persuaded that
`Exhibit 2025 should be excluded in whole or in part. Patent Owner has
`shown, and Petitioner does not dispute, that Dr. Quackenbush is qualified to
`opine as to the perspective of an ordinarily skilled artisan at the time of the
`invention. PO. Opp. 5–93; see also infra § IV.B. As such,
`Dr. Quackenbush’s testimony is highly relevant about how an ordinarily
`skilled artisan would have interpreted the prior-art references, as well as to
`the general knowledge in the field at the time the invention was made. Any
`deficiencies in Dr. Quackenbush’s Declaration go to the weight that we
`should afford his testimony and do not support a motion to exclude. See,
`e.g., Yorkey v. Diab, 601 F.3d 1279, 1284 (Fed. Cir. 2010) (holding that the
`Board has discretion to give more weight to one item of evidence over
`another “unless no reasonable trier of fact could have done so”); In re Am.
`Acad. of Sci. Tech Ctr., 367 F.3d 1359, 1368 (Fed. Cir. 2004) (“[T]he Board
`is entitled to weigh the declarations and conclude that the lack of factual
`corroboration warrants discounting the opinions expressed in the
`declarations.”). Thus, as to Exhibit 2025, Petitioner’s Motion is Exclude is
`denied.
`
`III. PATENT OWNER’S MOTION TO EXCLUDE
`Patent Owner moves to exclude Exhibits 1002, 1007, 1013, 1016–
`1020, 1022, 1036, 1037, 1055, 1080, 1082, 1084–1093, 1100, 1101, 1104,
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`1110, and 1111. PO Mot. 1. We do not rely on Exhibits 1007, 1013, 1016–
`1020, 1022, 1036, 1037, 1055, 1080, 1082, 1084–1093, 1100, 1110, or 1111
`in this Decision. Thus, we dismiss as moot Patent Owner’s Motion to
`Exclude as it relates to Exhibits 1007, 1013, 1016–1020, 1022, 1036, 1037,
`1055, 1080, 1082, 1084–1093, 1100, 1110, and 1111.
`Exhibits 1002 and 1104 are the first and second Declarations of
`Dr. Gabriel, respectively. PO Mot. 1–8. Patent Owner argues that Exhibit
`1002 should be excluded in its entirety because the “entire declaration is
`premised on an impossible standard to be met by a person of ordinary skill
`in the art” and “Dr. Gabriel uses this impossible perspective to support a
`hindsight-based obviousness analysis.” Id. at 1–3. We agree with
`Petitioner, however, that Patent Owner’s arguments constitute a
`disagreement about a question of fact (i.e., the proper definition of an
`ordinarily skilled artisan), and “[a] motion to exclude is not the proper
`mechanism to direct [its] attention to differences in the evidence.” Pet. Opp.
`2 (quoting Google Inc. v. Visual Real Estate, Inc., IPR2014-01339, Paper 39
`at 37 (PTAB Jan. 25, 2016)). Moreover, we note that Dr. Gabriel applies in
`her Declarations the same definition of an ordinarily skilled artisan as that
`we adopted in our Institution Decision and reaffirm here. Inst. Dec. 7–8;
`infra § IV.B. Thus, we are not persuaded that we should exclude
`Dr. Gabriel’s Declarations Exhibits 1002 and 1104 for this reason.
`Patent Owner also argues that Dr. Gabriel’s second Declaration
`(Exhibit 1104) should be excluded because it attempts to “fill[] a gap in
`[Petitioner’s] prima facie case,” relies on “new theories regarding the
`teachings of Schmitt,” and “presents an entirely different theory of
`obviousness with respect to the ‘non-uniquely tagged’ limitation.” PO
`Mot. 3–8. We are not persuaded, however, that Exhibits 1002 and 1104
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`should be excluded. “A motion to exclude is not a mechanism to argue that
`a reply contains new arguments or relies on evidence necessary to make out
`a prima facie case.” Vibrant Media, Inc. v. General Elec. Co., IPR2013-
`00170, Paper 56 at 31 (PTAB June 26, 2014). Thus, Patent Owner’s
`arguments in this regard are improper.
`In any event, Petitioner has shown, and Patent Owner does not
`dispute, that Dr. Gabriel is qualified to opine as to the perspective of an
`ordinarily skilled artisan at the time of the invention. Pet. Opp. 2–3; see also
`infra § IV.B. As with Dr. Quackenbush’s testimony above, Dr. Gabriel’s
`testimony is highly relevant about how an ordinarily skilled artisan would
`have interpreted the prior-art references, as well as to the general knowledge
`in the field at the time the invention was made. And any deficiencies in
`Dr. Gabriel’s Declaration go to the weight that we should afford her
`testimony and do not support a motion to exclude.
`For these reasons, as to Exhibits 1002 and 1104, Patent Owner’s
`Motion to Exclude is denied.
`
`IV. ANALYSIS
`We have reviewed the parties’ respective briefs as well as the relevant
`evidence discussed in those papers. For the reasons discussed in detail
`below, we determine that Petitioner has shown by a preponderance of the
`evidence that claims 1–11, 13, and 17–20 of the ’822 patent are unpatentable
`under 35 U.S.C. § 103 as having been obvious, but not that claim 12 would
`have been unpatentable as obvious.
`A. Principles of Law
`To prevail in its challenges to the patentability of all claims of the
`’822 patent, Petitioner must demonstrate by a preponderance of the evidence
`that the claims are unpatentable. 35 U.S.C. § 316(e) (2012); 37 C.F.R.
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`§ 42.1(d) (2018). “In an [inter partes review], the petitioner has the burden
`from the onset to show with particularity why the patent it challenges is
`unpatentable.” Harmonic Inc. v. Avid. Tech., Inc., 815 F.3d 1356, 1363
`(Fed. Cir. 2016); see also 35 U.S.C. § 312(a)(3) (requiring inter partes
`review petitions to identify “with particularity . . . the evidence that supports
`the grounds for the challenge to each claim”). That burden of persuasion
`never shifts to Patent Owner. Dynamic Drinkware, LLC v. Nat’l Graphics,
`Inc., 800 F.3d 1375, 1378 (Fed. Cir. 2015); see also In re Magnum Oil Tools
`Int’l, Ltd., 829 F.3d 1364, 1375–78 (Fed. Cir. 2016) (discussing the burden
`of proof in inter partes review).
`A claim is unpatentable for obviousness if, to one of ordinary skill in
`the pertinent art, “the differences between the subject matter sought to be
`patented and the prior art are such that the subject matter as a whole would
`have been obvious at the time the invention was made.” 35 U.S.C. § 103(a)
`(2006); see also KSR Int’l Co. v. Teleflex Inc., 550 U.S. 398, 406 (2007).
`The question of obviousness is resolved on the basis of underlying factual
`determinations including the scope and content of the prior art, any
`differences between the claimed subject matter and the prior art, the level of
`ordinary skill in the art, and objective evidence of nonobviousness. Graham
`v. John Deere Co., 383 U.S. 1, 17–18 (1966). A petitioner cannot satisfy its
`burden of proving obviousness by employing “mere conclusory statements.”
`Magnum Oil, 829 F.3d at 1380. Moreover, a decision on the ground of
`obviousness must include “articulated reasoning with some rational
`underpinning to support the legal conclusion of obviousness.” KSR, 550
`U.S. at 418 (citing In re Kahn, 441 F.3d 977, 988 (Fed. Cir. 2006)).
`We analyze Petitioner’s asserted grounds of unpatentability in
`accordance with the above-stated principles.
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`B. Level of Ordinary Skill in the Art
`We consider the asserted grounds of unpatentability in view of the
`understanding of a person of ordinary skill in the art and, thus, begin with
`the level of ordinary skill in the art. The level of ordinary skill in the art is
`“a prism or lens through which . . . the Board views the prior art and the
`claimed invention” to prevent hindsight bias. Okajima v. Bourdeau, 261
`F.3d 1350, 1355 (Fed. Cir. 2001).
`Relying on the declaration testimony of its declarant, Dr. Gabriel,
`Petitioner contends that a person of ordinary skill in the art for the ’822
`patent “would have had a Ph.D. in genetics, molecular biology,
`bioinformatics or a related field, and at least five years of research in an
`academic or industry setting, including at least two to three years of research
`experience in the field of cancer genomics.” Pet. 20 (citing Ex. 1002 ¶ 72).
`In response, Patent Owner does not appear to dispute the type of experience
`Petitioner proposes for the level of ordinary skill in the art. See generally
`PO Resp. We observe, however, that Patent Owner’s declarants,
`Dr. Shendure and Dr. Quackenbush, contend that Petitioner’s definition of
`an ordinarily skilled artisan relates more to an artisan with “extraordinary,”
`rather than “ordinary,” skill. See Ex. 2023 ¶ 15, Ex. 2025 ¶ 23.
`In our Institution Decision, we preliminarily adopted Petitioner’s
`proposed level of ordinary skill. Inst. Dec. 7–8. We also determined that
`the prior art itself was sufficient to demonstrate the level of ordinary skill in
`the art at the time of the invention. Inst. Dec. 8. For this Decision, we
`maintain that the prior art demonstrates the appropriate level of ordinary
`skill in the art. See Okajima, 261 F.3d at 1355 (the prior art, itself, can
`reflect appropriate level of ordinary skill in art).
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`Nevertheless, for further clarity, we set forth the definition of an
`ordinarily skilled artisan as follows. As to level of education, because of the
`nature of the subject matter of the ’822 patent, we agree with Petitioner that
`an ordinarily skilled artisan would have had a doctorate degree (Ph.D.) in
`genetics, molecular biology, bioinformatics, or a related field. Ex. 2023
`¶¶ 28–29; Ex. 1002 ¶ 25. We also agree with Petitioner that an ordinarily
`skilled artisan would have had five years’ research experience in industry or
`academia, including at least two to three years of research experience in the
`field of cancer genomics.
`We acknowledge Petitioner’s contention that an ordinarily skilled
`artisan “would have had knowledge of DNA sequencing, including NGS
`[next-generation sequencing] and related sequencing methods, and related
`sample preparation techniques, bioinformatics methods for grouping and
`comparing sequence reads and mapping sequence reads onto genomes, and
`methods for identifying genetic variants in a sample.” Pet. 20. But we
`conclude that these statements more aptly apply to the scope and content of
`the prior art under Graham and, thus, are best addressed in relation to
`Petitioner’s asserted grounds of unpatentability based on obviousness.
`Finally, we have considered the qualifications of Dr. Gabriel,
`Dr. Shendure, and Dr. Quackenbush and find that each is qualified to opine
`as to the perspective of an ordinarily skilled artisan at the time of the
`invention. See Ex. 1003 (Dr. Gabriel’s curriculum vitae); Ex. 2024
`(Dr. Shendure’s curriculum vitae); Ex. 2026 (Dr. Quackenbush’s curriculum
`vitae).
`C. Claim Construction
`The instant Petition was filed on February 2, 2019. Thus, the new
`rules amending the claim construction standard apply here because the
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`Petition was filed after the November 13, 2018, effective date of the
`amendment. See Changes to the Claim Construction Standard for
`Interpreting Claims in Trial Proceedings Before the Patent Trial and Appeal
`Board, 83 Fed. Reg. 51,340, 51,358 (Oct. 11, 2018) (amending 37 C.F.R.
`§ 42.100(b) effective November 13, 2018) (now codified at 37 C.F.R.
`§ 42.100(b) (2019)). Accordingly, for this inter partes review, the Board
`applies the same claim construction standard as that applied in federal
`courts.
`Under this standard, we construe the claim “in accordance with the
`ordinary and customary meaning of such claim as understood by one of
`ordinary skill in the art and the prosecution history pertaining to the patent.”
`Id.; see also Phillips v. AWH Corp., 415 F.3d 1303, 1312–13 (Fed. Cir.
`2005) (en banc) (stating that claim terms “are generally given their ordinary
`and customary meaning” as understood by a person of ordinary skill in the
`art in question at the time of the invention). Only terms that are in
`controversy need to be construed, and then only to the extent necessary to
`resolve the controversy. Nidec Motor Corp. v. Zhongshan Broad Ocean
`Motor Co., 868 F.3d 1013, 1017 (Fed. Cir. 2017).
`1. Overview
`At the close of trial, the only claim-construction dispute remaining in
`this proceeding concerns the meaning of “non-uniquely tagged” in the
`context of a population of parent polynucleotides, as recited in claim 1. See
`Ex. 1001, 62:22–24 (reciting “converting the population of cfDNA
`molecules into a population of non-uniquely tagged parent
`polynucleotides”). Petitioner contends that “non-uniquely tagged” “means
`that the number of different identifiers attached to the polynucleotides is at
`least 2 and fewer than the number of polynucleotides.” Pet. 21. Patent
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`Owner argues that “non-uniquely tagged” means “the number of different
`identifiers is at least 2 and fewer than the number of polynucleotides that
`map to the mappable base position.”6 PO Resp. 16.
`As an initial matter, we acknowledge that, in our Institution Decision,
`we referred to “non-uniquely tagged” as both “the number of different
`identifiers attached to the polynucleotides is at least 2 and fewer than the
`number of polynucleotides” and “the number of different identifiers attached
`to the polynucleotides is at least 2 and fewer than the number of
`polynucleotides that map to the mappable base position.” Compare Inst.
`Dec. 9 (“Petitioner contends that ‘[t]he term “non-uniquely tagged” means
`that the number of different identifiers attached to the polynucleotides is at
`least 2 and fewer than the number of polynucleotides.’ We agree.” (quoting
`Pet. 21)), with id. (stating, “In the context of ‘non-unique’ identifiers, the
`’822 patent follows the words ‘non-uniquely tagged’ with ‘that is, the
`number of different identifiers can be at least 2 and fewer than the number of
`polynucleotides that map to the mappable base position.’” (quoting
`Ex. 1001, 41:42–46)). As a result, both parties claim that the Board adopted
`their respective construction of “non-uniquely tagged.” See PO Resp. 15–16
`(stating that “[t]here is no dispute as to the express definition of ‘non-
`uniquely tagged’ in the ’822 patent”); Pet. Reply 3 (stating that “[t]he Board
`should reject Patent Owner’s arguments and reaffirm its construction, which
`is identical to the District Court’s”).
`
`
`6 The Declarants for both parties agree that an ordinarily skilled
`artisan would understand that “mappable base position” means a position in
`the reference sequence to which polynucleotide molecules can be
`confidently mapped. See Ex. 2027 ¶ 67; Ex. 2022, 23:22–24:13, 30:4–18,
`35:5–7; Ex. 2025 ¶ 65. We apply that understanding for this Decision.
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`To be clear, we have considered the totality of the arguments and
`evidence anew at the close of trial, as well as the reasoning set forth in our
`Institution Decision, and determine, for the reasons discussed below, that
`“non-uniquely tagged” should be construed to mean that “the number of
`different identifiers is at least 2 and fewer than the number of
`polynucleotides” in a sample, without the additional phrase “that map to a
`mappable position.”
`At the heart of the parties’ dispute is the following passage from the
`’822 patent:
`Accordingly, this invention also provides compositions of tagged
`polynucleotides. The polynucleotides can comprise fragmented
`DNA, e.g. cfDNA. A set of polynucleotides in the composition
`that map to a mappable base position in a genome can be non-
`uniquely tagged, that is, the number of different identifiers can
`be [] at least 2 and fewer than the number of polynucleotides that
`map to the mappable base position.
`Ex. 1001, 41:42–47 (emphasis added).
`The parties agree that “non-uniquely tagged” means that “the number
`of different identifiers [i.e., the tag count7] can be at least 2 and fewer than
`the number of polynucleotides,” but disagree whether the phrase “that map
`to the mappable base position” should be included in the construction of
`“non-uniquely tagged.” Put differently, the parties agree that, to be “non-
`uniquely tagged,” the lower limit for the tag count is two, but disagree on the
`upper limit for the tag count.
`
`
`7 As relevant here, the ’822 patent refers to the “number of unique
`identifiers” as the “tag count.” Ex. 1001, 40:63. For clarity, we use these
`terms interchangeably in this Decision.
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`2. Patent Owner’s Arguments
`Patent Owner argues that the upper limit on the tag count is “fewer
`than the number of polynucleotides that map to the mappable base position.”
`PO Resp. 15; see also PO Sur-Reply 6 (arguing that “the ’822 patent
`expressly defines ‘non-uniquely tagged’ as limited by the number of
`polynucleotides that map to the mappable base position”). Relying on
`Dr. Quackenbush’s Declaration, Patent Owner offers the following
`schematic distinguishing between (a) the total polynucleotide fragments in a
`sample, (b) the number of polynucleotides that map to a given mappable
`base position, and (c) cognates.8 PO Resp. 13.
`
`
`Schematic submitted by Patent Owner distinguishing between
`the polynucleotides in a sample. PO Resp. 13.
`According to Patent Owner, the upper limit on the number of different
`identifiers does not depend on the total polynucleotide fragments in a sample
`(shown by the light blue circle). Id. at 14. Instead, the tag count “depends
`
`
`8 The ’822 patent defines “cognates” (or “duplicates”) as “more than
`one polynucleotide from different genomes [that] have the same start and
`stop positions.” Ex. 1001, 40:4–8.
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`. . . on a subpopulation of fragments that map to a given position in the
`reference genome” (shown by the medium blue circle) “and the expected
`number of cognates” (shown by the dark blue circle). Id. (citing Ex. 1001,
`41:6–13). Patent Owner argues that the ’822 patent expressly defines “non-
`uniquely tagged” as limited by the number of polynucleotides that map to
`the mappable base position, and that any argument otherwise “strains
`credulity.” PO Sur-Reply 5–6; see also PO Reply 15.
`3. Petitioner’s Arguments
`Petitioner contends that the upper limit on the number of different
`identifiers is “fewer than the number of polynucleotides” in a sample.
`Pet. 21. Specifically, Petitioner contends that, when “fewer barcodes than
`original DNA fragments” are used, “not every fragment has a unique
`barcode,” and thus the population of polynucleotides are “non-uniquely
`tagged.” Id. at 11–12. As an example, Petitioner contends that “if there are
`1000 DNA fragments and only 500 different barcodes, [then] each fragment
`does not have its own unique barcode,” and thus the population of
`polynucleotides is “non-uniquely tagged” in the context of claim 1. Id. at 12
`(citing Ex. 1002 ¶ 51). Conversely, “if there are 1000 original DNA
`fragments and at least 1000 different barcodes, [then] each fragment will
`have its own unique barcode.” Id. at 11 (citing Ex. 1002 ¶ 50). Petitioner
`contends that we should not include “that map to the mappable base
`position” in the constructio