News & Analysis as of

Patent Trial and Appeal Board Prior Art Intellectual Property Litigation

Knobbe Martens

Keeping PACE With CRISPR

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AGILENT TECHNOLOGIES, INC. v. SYNTHEGO CORP. - Before Prost, Linn, and Reyna. Appeal from the Patent Trial and Appeal Board. Obviousness does not require all claimed limitations to be expressly disclosed in a primary prior...more

White & Case LLP

Federal Circuit Reinforces Standard for Prior Art Enablement in CRISPR Dispute

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On June 11, 2025, the U.S. Court of Appeals for the Federal Circuit decided Agilent Technologies, Inc. v. Synthego Corp. (No. 23-2186), addressing enablement of prior art references for disputed CRISPR-Cas9 gene-editing...more

McDonnell Boehnen Hulbert & Berghoff LLP

Agilent Technologies, Inc. v. Synthego Corp. (Fed. Cir. 2025)

An argument could be made that one of the most significant Supreme Court decisions in U.S. patent law in the last thirty years was Dickinson v. Zurko.  In that case the Court held that the Federal Circuit was bound by the...more

Sterne, Kessler, Goldstein & Fox P.L.L.C.

Latest Director Discretionary Denial Decision in iRhythm Provides Valuable Insights

On June 6, 2025, Acting USPTO Director Stewart issued a decision in iRhythm Tech. v. Welch Allyn, Inc., IPR2025-00363, Paper 10 (and four related IPRs), which granted Patent Owner’s request for discretionary denial. This is...more

Venable LLP

Federal Circuit Affirms PTAB’s Unpatentability Findings in Gene Therapy Hemgenix® IPRs

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On May 22, 2025, the CAFC affirmed the PTAB’s (Board) Final Written Decisions in Pfizer’s IPR2021-00925 and IPR2021-00926 finding all challenged claims of uniQure’s U.S. Patent No. 9,982,248 (“the ’248 patent”) unpatentable...more

A&O Shearman

Federal Circuit Rejects PTAB’s Implicit And Incorrect Claim Construction Of “Between 1 And 10”

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On May 23, 2025, the United States Court of Appeals for the Federal Circuit (“CAFC”) issued a precedential opinion reversing a final written decision from the U.S. Patent Trial and Appeal Board (“PTAB”) finding the challenged...more

Sheppard Mullin Richter & Hampton LLP

Is it Prior Art? Check the Provisional Application!

This Federal Circuit Opinion analyzed collateral estoppel and the extent to which the non-provisional document would benefit from the provisional application’s priority date, as it relates to Pre-AIA 35 U.S.C. § 102(e)....more

WilmerHale

Federal Circuit Provides Guidance on Scope of IPR Estoppel

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In its recent decision in Ingenico Inc. v. IOENGINE, LLC, the Federal Circuit affirmed the district court’s decision to allow Ingenico to introduce certain prior art at trial, finding that inter partes review (IPR) estoppel...more

Akin Gump Strauss Hauer & Feld LLP

Claim Construction Issues and Large Number of Claims Not Enough to Institute a Second Petition for Inter Partes Review

The Patent Trial and Appeal Board recently declined to institute a petition for IPR that was filed on the same day that the petitioner filed another petition challenging the same claims of the same patent. The board was not...more

Sterne, Kessler, Goldstein & Fox P.L.L.C.

Estoppel Certification in Reexamination

Estoppel certification in reexamination prevents relitigation of resolved issues....more

Jones Day

PTAB Allows Three Concurrent IPR Petitions for Unusual Patent Claims

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Recently, the Patent Trial and Appeal Board (“the Board”) was persuaded to consider the merits of three out of seven concurrent petitions for an inter partes review of a single patent due to the patent’s complicated claiming...more

Alston & Bird

Patent Case Summaries | Week Ending April 18, 2025

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Recentive Analytics, Inc. v. Fox Corp., et al., No. 2023-2437 (Fed. Cir. (D. Del.) Apr. 18, 2025). Opinion by Dyk, joined by Prost and Goldberg (sitting by designation). Recentive sued Fox for infringing four patents that...more

McDermott Will & Emery

Transatlantic Terminology: Skilled Artisan Could Equate UK, US Word Meanings

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The US Court of Appeals for the Federal Circuit affirmed a Patent Trial & Appeal Board unpatentability determination, finding that a skilled artisan would have found the term “sterile” in a UK publication to mean the same as...more

Knobbe Martens

No Error: The Board Committed No Procedural Error by Relying on Evidence Outside of the Prior Art Reference

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SAGE PRODUCTS, LLC v. STEWART [OPINION] - Before Reyna, Cunningham, and Stark. Appeal from the United States Patent and Trademark Office, Patent Trial and Appeal Board. The Board did not abuse its discretion by relying on...more

McDonnell Boehnen Hulbert & Berghoff LLP

Sage Products, LLC v. Stewart (Fed. Cir. 2025)

When a prevailing challenger withdraws from an appeal in post-grant proceedings, the Director can intervene under 35 U.S.C. § 143, which is what happened in an appeal in Sage Products, LLC v. Stewart after Challenger Becton...more

Jones Day

Expert Testimony Supporting POPR Can Be An Effective Strategy

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It is relatively uncommon for parties to submit expert declarations in the preliminary-response phase of an IPR proceeding, but recently the Patent Owner in Imperative Care, Inc. v. Inari Medical, Inc. effectively used that...more

Goodwin

The Court of Appeals for the Federal Circuit’s In Re Xencor Decision: Jepson Claims Require Written Description for Their...

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On March 13, 2025, the US Court of Appeals for the Federal Circuit (Federal Circuit) issued a decision titled In Re: Xencor, Inc. (the Xencor decision). The Xencor decision affirms the decision of the Appeals Review Panel...more

McDermott Will & Emery

Palette of Evidence: PTAB Must Consider Entire Record to Determine Prior Art Status

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The US Court of Appeals for the Federal Circuit vacated and remanded a Patent Trial & Appeal Board patentability determination, finding that the Board failed to consider the entire record regarding the prior art status of a...more

Rothwell, Figg, Ernst & Manbeck, P.C.

Product-by-Process Analysis: Invalidity ≠ Infringement

On March 4, 2025, the Federal Circuit affirmed the Patent Trial and Appeal Board’s (“PTAB”) decision in Restem, LLC v. Jadi Cell, LLC, No. 23-2054, 2025 WL 679195, at *1 (Fed. Cir. Mar. 4, 2025), finding that the patent...more

Knobbe Martens

The Board Must Provide Reasoned Explanation When Discarding Material, Unrebutted Evidence

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CQV CO., LTD. v. MERCK PATENT GMBH - Before Cunningham, Chen, and Mayer. Appeal from the Patent Trial and Appeal Board. The Board erred by failing to explain why it discarded material and unrebutted evidence that a reference...more

Womble Bond Dickinson

Design Patent Obviousness

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The landscape of design patent law has recently evolved with the introduction of a new standard for determining obviousness. For decades, the Rosen-Durling test was used to assess obviousness of design patents....more

Jones Day

Motivation to Modify Prior Art Need Not Be the Same as Challenged Patent

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Honeywell filed a petition for inter partes review of 3G Licensing’s U.S. Patent No. 7,319,718, which claims a coding scheme for transmitting information in 3G mobile communication systems. The PTAB found none of the...more

Alston & Bird

Patent Case Summaries | Week Ending March 14, 2025

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CQV Co., Ltd. v. Merck Patent GmbH, No. 2023-1027 (Fed. Cir. (PTAB) Mar. 10, 2025). Opinion by Cunningham, joined by Chen and Mayer. CQV petitioned the Patent Trial and Appeal Board for post-grant review of a Merck patent...more

Baker Botts L.L.P.

The Impact of Prosecution Length on Invalidity Outcomes in Patent Litigation

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This Article analyzes over 89,000 patents litigated over a twenty-year period to determine how the number of office actions to allowance during prosecution impacts rates of invalidity during subsequent litigation. Many...more

Alston & Bird

Intellectual Property Litigation Newsletter | February 2025

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Welcome to the Intellectual Property Litigation Newsletter, our review of decisions and trends in the intellectual property arena. In this edition, we learn that the Federal Circuit always says never, patent publications...more

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