News & Analysis as of

Disclaimers Patent Litigation Patent Infringement

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

Akin Gump Strauss Hauer & Feld LLP

Federal Circuit: Statements Made During Prosecution of Parent Application Disavow Claim Scope in Subsequent Patents

The Federal Circuit affirmed a District of Delaware finding of non-infringement in an ANDA litigation due to the patentee’s clear and unmistakable disavowal of claim scope during prosecution. Specifically, the court held that...more

McDermott Will & Emery

Prosecution Disclaimer Alive and Well, Especially in Closed Claim

McDermott Will & Emery on

The US Court of Appeals for the Federal Circuit affirmed a district court’s noninfringement determination, finding that the presence of a disclaimed compound in the accused product precluded infringement. Azurity Pharm., Inc....more

Goodwin

K-Fee Provides a Warning to Life Sciences Companies - What You Say in Foreign Prosecution May Affect Your U.S. Claim Scope

Goodwin on

On December 26, 2023, the United States Court of Appeals for the Federal Circuit issued its decision in K-Fee System GMBH v. Nespresso USA, Inc. While nominally a case related to coffee makers, its teachings are highly...more

McDermott Will & Emery

Espresso Yourself: When Prosecution History as a Whole Doesn’t Demonstrate Clear, Unmistakable Disclaimer

The US Court of Appeals for the Federal Circuit reversed and remanded a district court’s claim construction and related summary judgment rulings after determining that the district court erred in construing a claim term by...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - September 2022

INVT SPE LLC v. Int’l Trade Comm’n, Appeal No. 2020-1903 (Fed. Cir. Aug. 31, 2022) - In its only precedential patent case last week, the Federal Circuit issued a lengthy opinion that revolved around claims that are drawn...more

Knobbe Martens

Sounding Off: Prosecution Disclaimer Requires Unambiguous Intrinsic Evidence

Knobbe Martens on

GENUINE ENABLING TECHNOLOGY LLC V. NINTENDO CO., LTD - Before Newman, Reyna, and Stoll. Appeal from the Western District of Washington. Summary: A finding of prosecution disclaimer must be supported by an unambiguous...more

Akin Gump Strauss Hauer & Feld LLP

Federal Circuit: Statutory Disclaimer Results in No Case or Controversy

The Federal Circuit ruled that statutory disclaimer terminates the case or controversy between the parties in an infringement suit as to those claims, and immediately deprives the district court of the authority to take...more

Schwabe, Williamson & Wyatt PC

Fresh From the Bench: Precedential Patent Cases From the Federal Circuit

Core Wireless v. LG affirms the denial of summary judgment as to unpatentable subject matter, ruling that the asserted claims are directed to an improved user interface for computing devices, not to the abstract idea of an...more

Akin Gump Strauss Hauer & Feld LLP

Eastern District of Texas Judge Holds that Statements Made to PTAB Constitute Disclaimer

On September 9, 2017, an Eastern District of Texas magistrate judge issued a report and recommendation holding that a plaintiff was estopped from asserting its patent infringement claims because statements made in response to...more

McDonnell Boehnen Hulbert & Berghoff LLP

Avid Technology, Inc. v. Harmonic, Inc. (Fed. Cir. 2016) - Lesson for Defendant-Appellee's: Provide Responsive Arguments on Appeal

On January 29, 2016, the Federal Circuit issued an Opinion in Avid Technology, Inc. v. Harmonic, Inc. in which the judgment of the District Court was vacated, and the case was remanded for a new trial on infringement. Avid...more

Foley & Lardner LLP

Apotex Has Standing Despite Benicar Patent Disclaimer

Foley & Lardner LLP on

In Apotex Inc. v. Daiichi Sankyo, Inc., the Federal Circuit held that Apotex has standing to seek a declaratory judgment that it does not infringe Daiichi Sankyo’s patent, even though Daiichi Sankyo has disclaimed the patent...more

12 Results
 / 
View per page
Page: of 1

"My best business intelligence, in one easy email…"

Your first step to building a free, personalized, morning email brief covering pertinent authors and topics on JD Supra:
*By using the service, you signify your acceptance of JD Supra's Privacy Policy.
- hide
- hide