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Patent Litigation Claim Construction Life Sciences

Carlton Fields

Court Finds MSN Does Not Infringe Novartis’s Patent and Clears the Way for Generic Entresto

Carlton Fields on

In In re Entresto (Sacubitril/Valsartan) Patent Litigation, Judge Richard G. Andrews of the U.S. District Court for the District of Delaware granted MSN Pharmaceuticals Inc. a victory on noninfringement of U.S. Patent No....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

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

BCLP

Federal Circuit Clarifies Limits of Prosecution Disclaimer in Patent Families

BCLP on

In Maquet Cardiovascular LLC v. Abiomed Inc., 131 F.4th 1330 (Fed. Cir. 2025), the Federal Circuit addressed whether the prosecution history of one patent in a patent family can limit the scope of claims in a different patent...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

Venable LLP on

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

Robins Kaplan LLP

Boehringer Ingelheim Pharms. Inc. v. Apotex Inc.

Robins Kaplan LLP on

Tradjenta® (linagliptin) - Case Name: Boehringer Ingelheim Pharms. Inc. v. Apotex Inc., Civ. No. 23-685-CFC, 2025 WL 71979 (D. Del. Jan. 10, 2025) (Connolly, J.)  Drug Product and Patent(s)-in-Suit: Tradjenta® (linagliptin);...more

Robins Kaplan LLP

Taiho Pharma Co. v. MSN Labs Private Ltd.

Robins Kaplan LLP on

Lonsurf® (tipiracil) - Case Name: Taiho Pharma Co. v. MSN Labs Private Ltd., No. 19-2342-JLH (D. Del. Jan. 23, 2025) (Hall, J.)  Drug Product and Patent(s)-in-Suit: Lonsurf® (tipiracil); U.S. Patent No. 10,457,666 (“the ’666...more

Robins Kaplan LLP

Alcon Inc. v. Padagis Israel Pharms. Ltd.

Robins Kaplan LLP on

Simbrinza® (brinzolamide / brimonidine) - Case Name: Alcon Inc. v. Padagis Israel Pharms. Ltd., Civ. No. 22-1422-WCB, 2025 WL 457119 (D. Del. Feb. 5, 2025) (Bryson, C.J.)  Drug Product and Patent(s)-in-Suit:  Simbrinza®...more

Jones Day

Expert Testimony Supporting POPR Can Be An Effective Strategy

Jones Day on

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

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

Knobbe Martens

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

Knobbe Martens on

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

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

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

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

Robins Kaplan LLP

Melinta Therapeutics, LLC v. Nexus Pharms., Inc.

Robins Kaplan LLP on

Minocin® (minocycline) - Case Name: Melinta Therapeutics, LLC v. Nexus Pharms., Inc., Civ. No. 21-2636, 2024 WL 4799896 (N.D. Ill. Nov. 15, 2024) (Kness, J.)  Drug Product and Patent(s)-in-Suit: Minocin® (minocycline);...more

Robins Kaplan LLP

Novartis Pharms. Corp. v. MSN Pharms., Inc.

Robins Kaplan LLP on

Entresto® (valsartan/sacubitril) - Case Name: Novartis Pharms. Corp. v. MSN Pharms., Inc., Nos. 2024-2211, 2024-2212, 2024 WL 4969281 (Fed. Cir. Dec. 4, 2024) (Circuit Judges Lourie, Prost, and Reyna presiding; Opinion by...more

A&O Shearman

Federal Circuit Affirms PTAB Decision Regarding DNA Sampling Patent

A&O Shearman on

On January 6, 2025, the United States Court of Appeals for the Federal Circuit (“CAFC”) affirmed the decision of the Patent Trial and Appeal Board (“PTAB”) rejecting a challenge to U.S. Patent No. 7,332,277 (“the ‘277...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

DLA Piper

Case-Narrowing Decisions are a One-Way Street: Reviewing Exeltis USA v. Lupin Ltd.

DLA Piper on

Exeltis USA, Inc. and other parties (Exeltis) recently prevailed against Lupin Ltd. and Lupin Pharmaceuticals, Inc. (Lupin) in a patent infringement suit brought in the District of Delaware. After a three-day bench trial, the...more

Sheppard Mullin Richter & Hampton LLP

2023 Federal Circuit Case Summaries - Intellectual Property: Year End Report

We are pleased to share Sheppard Mullin’s inaugural “Year in Review” report that collects and reports on most key patent law-related Federal Circuit decisions for 2023. This is a follow up to the quarterly report we...more

McDermott Will & Schulte

Specially Convened Rehearing Panel Vacates IPR Institution Denial

In a rehearing decision issued by a Delegated Rehearing Panel specially convened by the US Patent & Trademark Office (PTO) Director, the Patent Trial & Appeal Board vacated a prior panel decision denying institution, modified...more

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