News & Analysis as of

CAFC Patent Infringement Patent Litigation

Irwin IP LLP

Arguments in Prosecution History Limit Design Patents Too 

Irwin IP LLP on

The USPTO must reject a patent application if the applicant’s claim covers what the prior art already disclosed, and patent applicants may respond to such rejections with arguments that what they claimed was different. ...more

Sheppard Mullin Richter & Hampton LLP

The Push and Pull of Prosecution Estoppel: How Cancelled Claims Can Affect the Scope of Non-Amended Claims

Prosecution history estoppel may narrow the scope of a claim that was unamended during prosecution, if another closely related claim is amended or cancelled during prosecution....more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases: Jiaxing Super Lighting Electric Appliance, Co. Ltd. v. CH Lighting Technology Co., Ltd.

Jiaxing Super Lighting Electric Appliance, Co. Ltd. v. CH Lighting Technology Co., Ltd., Appeal No. 2023-1715 (Fed. Cir. July 28, 2025) In our Case of the Week, the Federal Circuit addressed three issues arising from a...more

Hudnell Law Group

Federal Circuit Rejects Formalistic Shield to Prosecution History Estoppel

Hudnell Law Group on

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

Robins Kaplan LLP

Azurity Pharms., Inc. v. Alkem Labs. Ltd.

Robins Kaplan LLP on

Nature of the Case and Issue(s) Presented: The ’948 patent claims non-sterile drinkable liquid formulations of vancomycin, an antibiotic used to treat Clostridium difficile infection. These formulations are particularly...more

Cooley LLP

Federal Circuit Strengthens Prosecution History Estoppel Principles in Colibri Heart Valve LLC v. Medtronic CoreValve, LLC

Cooley LLP on

On July 18, 2025, the US Court of Appeals for the Federal Circuit reversed a lower court ruling in Colibri Heart Valve LLC v. Medtronic CoreValve, LLC, holding that prosecution history estoppel barred the patentees’ doctrine...more

McDermott Will & Schulte

Valve turned: Prosecution history estoppel applies to closely related claims

The US Court of Appeals for the Federal Circuit reversed a jury’s infringement finding, concluding it was precluded by prosecution history estoppel. Colibri Heart Valve LLC v. Medtronic CoreValve LLC, Case No. 23-2153 (Fed....more

Morgan Lewis

A New Line Drawn: Federal Circuit Applies Prosecution History Disclaimer to Design Patents

Morgan Lewis on

The US Court of Appeals for the Federal Circuit recently issued a decision that held for the first time that principles of prosecution history disclaimer apply to design patents, aligning design patent law more closely with...more

WilmerHale

Google Victory Is First Step to Address Patent Damages Imbalance

WilmerHale on

Patents are a mutually beneficial agreement between inventors and the government. Each side makes concessions in service of their own, and the greater, good. It’s a careful balance, where policy and rules that are too...more

Proskauer - The Patent Playbook

Federal Circuit Vacates $300 Million Verdict Against Apple, Orders Third Trial in LTE Patent Dispute

In a pivotal ruling for patent damages and standard-essential patent (SEP) litigation, the Federal Circuit vacated a $300 million award against Apple in a long-standing dispute with Optis Cellular Technology, LLC. See Optis...more

Knobbe Martens

Did They Want to Infringe? – Federal Circuit Denies Declaratory Judgment When Party at No Risk of Lawsuit

Knobbe Martens on

[MITEK SYSTEMS, INC., v. UNITED SERVICES AUTOMOBILE ASSOCIATION [OPINION]] - Before Taranto, Schall, and Chen. Appeal from the United States District Court for the Eastern District of Texas. The plaintiff could not seek...more

A&O Shearman

Federal Circuit Vacates $300 Million Damages Award Due To Flawed Verdict Form

A&O Shearman on

On June 16, 2025, the U.S. Court of Appeals for the Federal Circuit (“CAFC”) vacated a $300 million damages award because the district court used a flawed verdict form, which included only a single, blanket question as to...more

Knobbe Martens

A Question for Everyone: Juries Must Determine Infringement on a Patent-By-Patent Basis

Knobbe Martens on

OPTIS CELLULAR TECHNOLOGY, LLC v. APPLE INC. - Before Prost, Reyna, and Stark. Appeal from the United States District Court for the Eastern District of Texas. Patent plaintiffs have a right to a unanimous verdict on each...more

Knobbe Martens

A Patent Does Not Guarantee the Patent Owner Will Be First to Market

Knobbe Martens on

INCYTE CORPORATION V. SUN PHARMACEUTICAL INDUSTRIES, LTD. - Before Moore, Prost and Hughes. Appeal from the United States District Court for the District of New Jersey. A district court erred in issuing a preliminary...more

Knobbe Martens

No Takebacks: The High Bar for Departing From Patent Lexicography

Knobbe Martens on

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

Fitch, Even, Tabin & Flannery LLP

Federal Circuit Vacates Jury Verdict and Damages for Multiple Errors

On June 16, in Optis Cellular Technology v. Apple Inc., the Federal Circuit issued a decision reversing the district court on multiple grounds, including § 101 patent eligibility and trial procedure, in vacating infringement...more

Knobbe Martens

Patent Claims Applying Machine Learning Methods to New Environment Do Not Withstand § 101 Scrutiny

Knobbe Martens on

RECENTIVE ANALYTICS, INC. v. FOX CORP. - Before Dyk, Prost, and Goldberg. Appeal from the United States District Court for the District of Delaware. The Federal Circuit found that claims applying established methods of...more

Alston & Bird

Patent Case Summaries | Week Ending June 20, 2025

Alston & Bird on

Ancora Technologies, Inc. v. Roku, Inc., et al., Nos. 2023-1674, -1701 (Fed. Cir. (PTAB) June 16, 2025). Per curiam opinion, before Louri, Reyna, and Hughes. Ancora owns a patent directed to restricting unauthorized use of...more

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

U.S. IP Update – June 2025

Sterne Kessler’s U.S. IP Update is a newsletter delivering the latest developments in U.S. intellectual property law, tailored for companies and legal counsel in Korea. Stay informed on key court decisions, policy changes,...more

Knobbe Martens

Equitable Estoppel: Misleading Silence Not Enough Unless It Was Relied on and Caused Prejudice

Knobbe Martens on

FRAUNHOFER-GESELLSCHAFT v. SIRIUS XM RADIO INC. - Before Lourie, Dyk, and Reyna. Appeal from the United States District Court for the District of Delaware. The defense of equitable estoppel requires showing that the...more

Bradley Arant Boult Cummings LLP

Another Bite at the Apple to Avoid $300 Million in Damages

Recently, the Federal Circuit vacated both the infringement and damages judgments against Apple in a patent case that involves standard-essential patents (SEPs) related to Long-Term Evolution (LTE) technology brought in the...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases: Optis Cellular Technology, LLC v. Apple Inc.

Optis Cellular Technology, LLC v. Apple Inc., Appeal Nos. 2022-1904, -1925 (Fed. Cir. June 16, 2025) In this week’s Case of the Week, the Court of Appeals for the Federal Circuit vacated a jury decision awarding...more

Alston & Bird

Patent Case Summaries | Week Ending June 13, 2025

Alston & Bird on

Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. v. Sirius XM Radio Inc., No. 2023-2267 (Fed. Cir. (D. Del.) June 9, 2025). Opinion by Lourie, joined by Dyk and Reyna....more

Mintz - Intellectual Property Viewpoints

Split Federal Circuit Decision Emphasizes Need for Skilled Counsel

Complex damages analyses require skilled professionals who understand the law and facts of each case to navigate to success. The Federal Circuit’s recent en banc ruling in EcoFactor v. Google reiterates that point. The...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

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