News & Analysis as of

Patent Litigation Disclaimers

Goodwin

The USPTO Proposes a Radical Change to Terminal Disclaimer Practice: You Have an Opportunity to Comment

Goodwin on

On May 10, 2024, the United States Patent and Trademark Office (USPTO) issued a notice of proposed rulemaking that, if enacted, would tie the enforceability of every claim of a patent subject to a terminal disclaimer to the...more

WilmerHale

USPTO's Notice of Proposed Rulemaking on Terminal Disclaimer Practice

WilmerHale on

On May 10, 2024, the United States Patent and Trademark Office (USPTO) published a notice of proposed rulemaking (NPRM) that proposes a rule regarding new requirements for terminal disclaimers filed to obviate nonstatutory...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

WilmerHale

Federal Circuit Patent Watch: IPR disclaimers are binding in later proceedings but not in the proceeding in which it is made

WilmerHale on

Precedential Federal Circuit Opinions - 1.  VLSI TECHNOLOGY LLC v. INTEL CORPORATION [OPINION]  (2021-1826, 11/15/22) (Chen, Bryson, Hughes) - Bryson, J. Affirming in part, reversing in part, and remanding...more

Haug Partners LLP

Narrowing the Disclaimer Doctrine: Federal Circuit Cabins the Reach of Disclaimers in the IPR Context

Haug Partners LLP on

OVERVIEW - The United States Court of Appeals for the Federal Circuit recently affirmed three Inter Partes Review (IPR) final written decisions of the U.S. Patent Trial and Appeal Board (“the Board”) where the Board...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

Manatt, Phelps & Phillips, LLP

Patent Held Invalid—Specification Disclaimer Prevented Claim to Earlier Priority Date

In Akeva L.L.C., v. Nike, Inc., the Federal Circuit held that a disclaimer in a specification that excluded a particular embodiment prevented later claims in the continuation patents from claiming the excluded embodiment,...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

Latham & Watkins LLP

Patent Owner Statements During IPR May Limit Claim Scope

Latham & Watkins LLP on

Federal Circuit holds that patent owner’s statements can trigger prosecution disclaimers. On May 11, 2017 in Aylus Networks, Inc. v. Apple Inc., the Federal Circuit addressed for the first time whether statements made...more

Wilson Sonsini Goodrich & Rosati

The PTAB Review - June 2017

Escaping PTAB Review Through Strategic Disclaimer in CBM Proceedings - A patent is only eligible for covered business method (CBM) review if it: (1) claims a method or apparatus for performing data processing or other...more

Knobbe Martens

Federal Circuit Review | April 2017

Knobbe Martens on

Patentee’s Unnecessarily Broad Prosecution Disclaimer Affirmed by Federal Circuit - In Technology Properties Limited LLC v. Huawei Technologies Co., Ltd., Appeal Nos. 2016-1306, -1307, -1309, -1310, -1311, the Federal...more

McDermott Will & Emery

Repeated Disparagement of the Prior Art in the Specification Can Operate as a Clear and Unmistakable Disavowal of Claim Scope -...

McDermott Will & Emery on

Addressing issues of claim construction, the United States Court of Appeals for the Federal Circuit affirmed the district court’s narrow construction based on a disclaimer in the specification. Openwave Systems, Inc., NKA...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

McDermott Will & Emery

Patent Owner’s Disclaimers Results in IPR Institution Denial; Not an Adverse Judgment - FCA US LLC v. Jacobs Vehicle Systems, Inc.

McDermott Will & Emery on

Addressing the effect of disclaimed claims challenged in an inter partes review (IPR) petition, a panel of the Patent Trial and Appeal Board (the PTAB or Board) determined that challenged claims disclaimed prior to IPR...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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