News & Analysis as of

Pharmaceutical Patents Life Sciences Appeals

Hudnell Law Group

Federal Circuit Rejects Formalistic Shield to Prosecution History Estoppel

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On July 18, 2025, the U.S. Court of Appeals for the Federal Circuit reversed a $106 million jury verdict in Colibri Heart Valve LLC v. Medtronic CoreValve, LLC, No. 2023-2153, finding that Colibri’s infringement claim under...more

MoFo Life Sciences

Is Your Claim Open or Closed? Claim Construction Takes on a New Meaning in Eye Therapies, LLC v. Slayback Pharma, LLC

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On June 30, 2025, the Federal Circuit issued a precedential decision in Eye Therapies, LLC v. Slayback Pharma, LLC, reversing the Patent Trial and Appeal Board’s (PTAB’s) claim construction of the phrase “consisting...more

McDermott Will & Schulte

Prosecution history primacy: “Consisting essentially of” means what applicant said it meant

In a decision that underscores the primacy of prosecution history to determine claim scope, the US Court of Appeals for the Federal Circuit reversed the Patent Trial & Appeal Board’s interpretation of the transitional phrase...more

Knobbe Martens

No Takebacks: The High Bar for Departing From Patent Lexicography

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ALNYLAM PHARMACEUTICALS, INC. v. MODERNA, INC. - Before Taranto, Chen, and Hughes. Appeal from the United States District Court for the District of Delaware. Once the high threshold for lexicography is met, there must be a...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

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases: Alnylam Pharmaceuticals, Inc. v. Moderna, Inc.

Alnylam Pharmaceuticals, Inc. v. Moderna, Inc., Appeal No. 2023-2357 (Fed. Cir. June 4, 2025) In this week’s Case of the Week, the Federal Circuit affirmed a final judgment that Moderna’s mRNA-based COVID-19 vaccine did...more

Venable LLP

Court Finds bluebird bio’s Gene Therapy Zynteglo® (betibeglogene autotemcel) Does Not Infringe San Rocco Therapeutics’ Patents

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On May 16, 2025, the Court in Case No. 1:21-cv-01478 (D. Del.) granted bluebird bio’s motion for summary judgment, finding that its gene therapy Zynteglo® (betibeglogene autotemcel) does not infringe San Rocco Therapeutics‘...more

DLA Piper

The Federal Circuit Widens The ITC as a Venue for Life Sciences

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Federal Circuit reshapes foundational requirements for viability of a case in the ITC - Pharmaceutical and life sciences companies have historically been rare participants before the International Trade Commission (ITC) – in...more

White & Case LLP

Federal Circuit Clarifies Standard for Patent Conception in Ongoing CRISPR Dispute

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On May 12, 2025, the U.S. Court of Appeals for the Federal Circuit issued a long-awaited decision in Regents of the University of California v. Broad Institute (Nos. 22-1594, 22-1653) addressing priority for disputed...more

Parker Poe Adams & Bernstein LLP

Life Sciences Companies Have New Avenue to Challenge Patent Applications After Federal Court Ruling

Drugmakers and other companies in the life sciences industry seeking to invalidate patents have another arrow in their quiver thanks to a recent federal court decision....more

Wilson Sonsini Goodrich & Rosati

Federal Circuit Revives CRISPR-Cas9 Patent Priority Dispute

The CRISPR-Cas9 patent landscape remains complex and unsettled. The Federal Circuit’s latest decision in University of California v. Broad Institute1 revived the high-stakes dispute between UC2 and Broad3 over foundational...more

Robins Kaplan LLP

Janssen Pharms., Inc. v. Mylan Labs. Ltd.

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Invega Trinza® (paliperidone palmitate) - Case Name: Janssen Pharms., Inc. v. Mylan Labs. Ltd., No. 2023-2042, 2025 WL 946390 (Fed. Cir. Mar. 28, 2025) (Circuit Judges Dyk, Prost, and District Judge Goldberg presiding;...more

DLA Piper

Federal Circuit Refines Obviousness Framework for Drug and Biologic Dosing Regimens

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The United States Court of Appeals for the Federal Circuit recently affirmed a district court ruling that a pharmaceutical dosing claim limitation was unpatentable due to obviousness-type double patenting. The court found...more

Cooley LLP

End of the Road for Jepson Format Claims in the Life Sciences?

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In In re: Xencor, Inc., the US Court of Appeals for the Federal Circuit confirmed that the limiting preamble of a Jepson claim must be supported by the specification with “sufficient written description.” In its decision, the...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

Knobbe Martens

Jepson Claim Preamble Requires Written Description Support for Conventional Aspects of the Invention

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IN RE: XENCOR, INC. Before Hughes, Stark, and Schroeder (sitting by designation).  Appeal from the U.S. Patent and Trademark Office, Patent Trial and Appeal Board. To provide adequate written description for a Jepson claim,...more

McDonnell Boehnen Hulbert & Berghoff LLP

DNA Genotek Inc. v. Spectrum Solutions LLC (Fed. Cir. 2025)

Sometimes important contributions to innovation can come from the mundane rather than the extraordinary. One (perhaps apocryphal) example comes from the story of the early development of television by Philo Farnsworth (the...more

McDermott Will & Schulte

Inventor’s Motivation to Combine Does Not Control Obviousness

The US Court of Appeals for the Federal Circuit affirmed a district court decision rejecting claims of a patent application directed to a dosing regimen for a cancer treatment, finding the claims to be obvious where the...more

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

2024 Federal Circuit IP Appeals – Amarin Pharma, Inc. v. Hikma Pharm. USA Inc., 104 F.4th 1370 (Fed. Cir. 2024) (Moore, Lourie,...

Amarin sells the drug icosapent ethyl under the brand name Vascepa. Vascepa is approved by the FDA for two indications: (i) to treat severe hypertriglyceridemia, a condition characterized by blood triglyceride levels greater...more

McDermott Will & Schulte

Eye-Catching: Biosimilars Injunction Prevails

Addressing a preliminary injunction in patent litigation related to the Biologics Price Competition and Innovation Act (BPCIA), the US Court of Appeals for the Federal Circuit upheld the district court’s grant of a...more

Robins Kaplan LLP

Silvergate Pharms., Inc. v. Bionpharma Inc.

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Epaned® (enalapril maleate) - Case Name: Silvergate Pharms., Inc. v. Bionpharma Inc., Civ. Nos. 18-cv-1962, 19-cv-1067, 2024 WL 4417104 (D. Del. Oct. 4, 2024) (Goldberg, J.)  Drug Product and Patent(s)-in-Suit: Epaned®...more

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

Personal Jurisdiction Over Foreign Companies that File an ANDA or aBLA in the U.S.

On January 29, 2025, the Federal Circuit issued paired decisions addressing Samsung Bioepis’s (“SB”) and Formycon AG’s (“Formycon”) appeals of preliminary injunctions entered in ongoing aflibercept biosimilar litigations with...more

Robins Kaplan LLP

Teva Branded Pharm. Products R&D, Inc. v. Amneal Pharms. of NY, LLC

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ProAir® HFA (albuterol sulfate) - Case Name: Teva Branded Pharm. Products R&D, Inc. v. Amneal Pharms. of NY, LLC, No. 2024-1936, 2024 WL 5176737 (Fed. Cir. Dec. 20, 2024) (Circuit Judges Prost, Taranto, and Hughes...more

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

Federal Circuit Reverses Decision Finding Lack of Written Description for Patent Claiming a Pharmaceutical Composition Comprising...

The Federal Circuit recently reversed a District of Delaware decision that invalidated claims of Novartis’s Orange Book listed patent, U.S. Patent No. 8,101,659 (the “’659 patent”), for its blockbuster drug Entresto®, a...more

McDermott Will & Schulte

Skilled Artisan’s View Is Decisive in Assessing Asserted Claim Drafting Error

The Court of Appeal (CoA) of the Unified Patent Court (UPC) clarified the legal standard for correcting obvious type inaccuracies in patent claims, explaining that the view of a skilled person at the filing date is decisive...more

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