News & Analysis as of

Patents Patent Infringement Disclaimers

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

Sheppard Mullin Richter & Hampton LLP

Cementing Victory by Accepting Defeat: When Can a Patentee’s Infringement Disclaimer Moot an Appeal of an IPR Decision?

A recent Federal Circuit case, ABS Global, Inc., v. Cytonome/ST, LLC, answered the interesting question of whether a patentee’s infringement disclaimer can moot a challenger’s appeal of an inter partes review (“IPR”)...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

Knobbe Martens

Federal Circuit Review - May 2018

Knobbe Martens on

Priority Claims Cannot Be Incorporated by Reference - In Vanda Pharmaceuticals Inc. v. West-Ward Pharmaceuticals International Limited, Appeal Nos. 2016-2707 and 2016-2708, the Federal Circuit held that when a patent for a...more

Mintz - Intellectual Property Viewpoints

Improper Reliance on Informal “Opinion of Counsel” Part of Basis for Exceptional Case Award

In Drop Stop LLC v. Jian Qing Zhu et al, 2-16-cv-07916 (CACD January 22, 2018), the Central District of California granted Plaintiff’s motion to award attorney fees due to Defendants’ exceptional litigation tactics under 35...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

Nutter McClennen & Fish LLP

Federal Circuit Affirms High Standard to Find Patentee Disclaimer

In a decision likely to be lauded by patent applicants and owners, the Federal Circuit recently issued an opinion that affirms its staunch position that the bar to prove a patent owner made a disclaimer that impacts the claim...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

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