News & Analysis as of

Claim Construction Patent Trial and Appeal Board Pharmaceutical Industry

A&O Shearman

UPC Court of Appeal clarifies approach to claim construction

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Insulet v EOFlow UPC_CoA_768/2024 (Ord_69078/2024) The Unified Patent Court (UPC) Court of Appeal has issued a significant decision that provides important guidance on the interpretation of patent claims in UPC...more

Venable LLP

Spotlight On: Actemra® (tocilizumab) / Tofidence™ (tocilizumab-bavi) / Tyenne® (tocilizumab-aazg) / Avtozma® (tocilizumab-anoh) -...

Venable LLP on

Tocilizumab Challenged Claim Types in IPRs: Claims are counted in each IPR, so claims from the same patent challenged in multiple IPRs are counted more than once. Within each IPR, claims are counted only once, whether they...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

An Eye Toward Prosecution History

Knobbe Martens on

EYE THERAPIES, LLC v. SLAYBACK PHARMA LLC - Before Taranto, Stoll and Scarsi (sitting by designation). The patent’s prosecution history required a restrictive interpretation of the term “consisting essentially of.”...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases: Eye Therapies, LLC v. Slayback Pharma, LLC

Eye Therapies, LLC v. Slayback Pharma, LLC, Appeal No. 2023-2173 (Fed. Cir. June 30, 2025) In its only precedential patent opinion last week, the Federal Circuit reviewed construction of the transitional claim phrase...more

Venable LLP

Pembrolizumab Patent IPR Final Written Decision Issued and Director Review Requested

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On June 9, 2025, the Patent Trial and Appeal Board (“Board”) issued a Final Written Decision (“FWD”) in Merck’s IPR2024-00240 against The Johns Hopkins University’s (“JHU”) U.S. Patent No. 11,591,393 (“the ’393 patent”),...more

WilmerHale

Federal Circuit Patent Watch: An Enabling Anticipatory Prior Art Reference Need Only Enable a Single Embodiment of the Claim

WilmerHale on

Precedential and Key Federal Circuit Opinions - ALNYLAM PHARMACEUTICALS, INC. v. MODERNA, INC. [OPINION] (2023-2357, 06/04/2025) (Taranto, Chen, Hughes) - Taranto, J. The Court affirmed the district court’s claim...more

Jones Day

Federal Circuit: Plans for Future Activity Created a Substantial Risk of Future Infringement

Jones Day on

Restem filed a petition for inter partes review of U.S. Patent No. 9,803,176, directed to stem cells obtained from umbilical cord tissue and isolated through a two-step process to create a specific cell marker expression...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

What is a “Clear and Unmistakable” Prosecution History Disclaimer?

DLA Piper on

The Federal Circuit’s March 21, 2025 decision in Maquet Cardiovascular LLC v. Abiomed Inc. et al. (No. 2023-2045) and the recent Patent Trial and Appeal Board (PTAB) Delegated Rehearing Panel decision in SynAffix B.V. v....more

Venable LLP

Spotlight On: Actemra® (tocilizumab) / Tofidence™ (tocilizumab-bavi) / Tyenne® (tocilizumab-aazg) / Avtozma® (tocilizumab-anoh) -...

Venable LLP on

Tocilizumab Challenged Claim Types in IPRs: Claims are counted in each IPR, so claims from the same patent challenged in multiple IPRs are counted more than once. Within each IPR, claims are counted only once, whether they...more

Venable LLP

Spotlight On: Rituxan® (rituximab) / Truxima® (rituximab-abbs) / Ruxience® (rituximab-pvvr) / Riabni™ (rituximab-arrx) - April...

Venable LLP on

Rituximab Challenged Claim Types in IPR and Litigation: Claims include those challenged in litigations and IPRs. Claims are counted in each litigation and IPR, so claims from the same patent challenged in multiple...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases: In re: Xencor, Inc.

In re: Xencor, Inc., Appeal No. 2024-1870 (Fed. Cir. Mar. 13, 2025) Our case of the week is an appeal from a decision of the Appeals Review Panel of the Patent Trial and Appeal Board, concerning Xencor’s patent application...more

Polsinelli

New PTAB Guidance on Enabling Requirement Under § 102 of the AIA and Construction of Chemical Compound

Polsinelli on

Synopsis: In a recently issued final written decision, the Patent Trial and Appeal Board (the “Board”) found all challenged claims of U.S. Patent No.11,572,334 (“the ’334 patent”) unpatentable.1 The Board’s decision centered...more

Alston & Bird

Patent Case Summaries | Week Ending January 10, 2025

Alston & Bird on

Novartis Pharmaceuticals Corp. v. Torrent Pharma Inc., et al., Nos. 2023-2218, -2220, -2221 (Fed. Cir. (D. Del.) Jan. 10, 2025). Opinion by Lourie, joined by Prost and Reyna. The FDA approved a New Drug Application from...more

Alston & Bird

Patent Case Summaries | Week Ending September 20, 2024

Alston & Bird on

Vascular Solutions LLC, et al. v. Medtronic, Inc., et al., No. 2024-1398 (Fed. Cir. (D. Minn.) Sept. 16, 2024). Opinion by Mazzant (sitting by designation), joined by Moore and Prost....more

WilmerHale

Federal Circuit Patent Watch: A comparative statement in a patent specification can be “definitional” for purposes of claim...

WilmerHale on

Precedential and Key Federal Circuit Opinions - 1.  PARKERVISION, INC. v. VIDAL [OPINION] (2022-1548, 12/15/2023) (Prost, Wallach, and Chen)* - Chen, J. The Court affirmed the PTAB’s determination that the patent...more

BakerHostetler

Incorporated References Can Be Used in an Anticipation Rejection

BakerHostetler on

A claim is said to be anticipated when a single prior art reference discloses, either expressly or inherently, each and every limitation of the claim. But what happens when a prior art reference discloses some aspects of the...more

Goodwin

PTAB Grants Petitioner Celltrion’s Motion To Submit Supplemental Information in Tocilizumab IPR

Goodwin on

​​​​​​​The U.S. Patent Trials & Appeals Board (Board) recently issued an Order granting Celltrion’s motion to submit supplemental information in its IPR (2022-00578) against U.S. Pat. No. 8,580,264, owned by Chugai Seiyaku...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - November 2020 #2

Valeant Pharmaceuticals North America LLC v. Mylan Pharmaceuticals Inc., Appeal No. 2019-2402 (Fed. Cir. Nov. 5, 2020) - In our Case of the Week, the Federal Circuit addressed a lingering question about venue following the...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - January 2020

PATENT CASE OF THE WEEK - Amgen Inc. v. Amneal Pharmaceuticals LLC, et al., Appeal Nos. 2018-2414, et al. (Fed. Cir. Jan. 7, 2020) - In this appeal from Markman and summary judgment opinions by the district court in a...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - August 2019 #3

PATENT CASE OF THE WEEK - Nalpropion Pharmaceuticals, Inc. v. Actavis Laboratories, FL, Inc., Appeal No. 2018-1221 (Fed. Cir. Aug. 15, 2019) - This week’s Case of the Week focuses on issues relating to written...more

Foley & Lardner LLP

Federal Circuit Agrees “Pharmaceutical Composition” May Be Toxic

Foley & Lardner LLP on

The claim construction determinations in Mayne Pharma International Pty. Ltd. V. Merck Sharp & Dohme Corp. may leave stakeholders in the pharmaceutical space scratching their heads, and highlights that it’s rarely possible to...more

Wilson Sonsini Goodrich & Rosati

Diagnostic Patent Take-Home Lessons from the Recent Federal Circuit Athena Case

Recently, the U.S Court of Appeals for the Federal Circuit issued a split panel decision in Athena.Athena, which examined the patent subject matter eligibility of four claims in one issued patent, upheld a district court's...more

Goodwin

Biosimilar-Related Appeals Pending before the Federal Circuit

Goodwin on

There are presently seven biosimilar-related appeals pending before the Federal Circuit. Two of those appeals, Amgen v. Sandoz (Case No. 18-1551) and Amgen v. Coherus (Case No. 18-1993), are from district court judgments in...more

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