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Appeals Patents Indefiniteness

McDermott Will & Emery

“Payment Handler”: A Nonce Term Without Instructions

The US Court of Appeals for the Federal Circuit affirmed a district court’s ruling that a software term was a “nonce” term that invoked 35 U.S.C. § 112, sixth paragraph (i.e., a means-plus-function claim element). The Court...more

Patterson Belknap Webb & Tyler LLP

Claims May Bend But Are Not Broken: Judge Locke Rejects Indefiniteness Arguments in Fiber Optic Cables Case

In a patent-infringement case involving fiber-optic-cable assemblies, Magistrate Judge Steven I. Locke (E.D.N.Y.) recently rejected defendants’ arguments that two terms in the patent claims were indefinite under 35 U.S.C. §...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases: Fintiv, Inc. v. Paypal holdings, Inc.

Fintiv, Inc. v. Paypal holdings, Inc., Appeal No. 2023-2312 (Fed. Cir. Apr. 30, 2025) In its only precedential patent opinion last week, the Federal Circuit affirmed a district court’s determination that the terms “payment...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - September 2024 #3

Vascular Solutions LLC v. Medtronic, Inc., Appeal No. 24-1398 (Fed. Cir. Sept. 16, 2024) In our Case of the Week, the Federal Circuit evaluated certain heavily litigated claims directed to guide catheters. The patents...more

WilmerHale

Disclosure of Antibody’s Equivalents Not Necessary to Satisfy Written Description and Indefiniteness Requirements for a...

WilmerHale on

The United States Patent and Trademark Office’s (“USPTO”) Appeals Review Panel (“the Panel”) recently clarified that means-plus-function claims do not require that the specification disclose equivalents. See Ex parte...more

Goodwin

The Appeals Review Panel’s In Re Xencor Decision: The USPTO Provides Its Position on Written Description and Means-Plus-Function...

Goodwin on

On May 17, 2024, an Appeals Review Panel (ARP) of the United States Patent and Trademark Office (“USPTO”) released its decision in Ex parte Chamberlain (referred to in Federal Circuit proceedings as In re Xencor;...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - October 2023 #2

Finjan LLC v. SonicWall, Inc., Appeal No. 2022-1048 (Fed. Cir. Oct. 13, 2023) In the Federal Circuit’s only precedential opinion this week, a majority affirmed summary judgment of non-infringement on appellant Finjan’s...more

Sheppard Mullin Richter & Hampton LLP

2023 Federal Circuit Case Summaries

We are excited to share Sheppard Mullin’s inaugural quarterly report on key Federal Circuit decisions. The Spring 2023 Quarterly Report provides summaries of most key patent law-related decisions from January 1, 2023 to March...more

McDermott Will & Emery

Console Yourself: Patent Owner Bears IPR Estoppel Burden

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Addressing for the first time the standard and burden of proof for the “reasonably could have raised” requirement for inter partes review (IPR) estoppel to apply, the US Court of Appeals for the Federal Circuit concluded that...more

McDermott Will & Emery

Dictionaries Don’t Know Best: The Intrinsic Record Prevails (Again)

McDermott Will & Emery on

The US Court of Appeals for the Federal Circuit addressed the tension between the intrinsic and extrinsic record in claim construction, holding that the intrinsic record should be relied on first. The Court therefore reversed...more

McDermott Will & Emery

Establishing Indefiniteness Requires More Than Identifying “Unanswered Questions” Part II

McDermott Will & Emery on

Earlier this year, the US Court of Appeals for the Federal Circuit reversed a district court decision for relying on an incorrect standard for indefiniteness. (Nature Simulation Systems Inc. v. Autodesk, Inc). Now, in...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - October 2022 #3

International Business Machines Corp. v. Zillow Group, Inc. et al., Appeal No. 2021-2350 (Fed. Cir. 2022) - In this week’s Case of the Week, the Federal Circuit affirmed a Rule 12(c) judgment on the pleadings that IBM’s...more

McDermott Will & Emery

Claim Construction and Jurisdictional Discovery Are More Than Skin Deep

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Referencing the use of antecedents from a “wherein” clause, the US Court of Appeals for the Federal Circuit reversed a district court’s claim construction and vacated its summary judgment ruling of indefiniteness that relied...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - June 2022 #2

University of Massachusetts v. L’Oréal S.A., Appeal No. 2021-1969 (Fed. Cir. June 13, 2022) - In an appeal from the U.S. District Court for the District of Delaware, the Federal Circuit addressed (1) whether the district...more

McDermott Will & Emery

“Self-Similar” More Objective Than One Might Think

The US Court of Appeals for the Federal Circuit affirmed a Patent Trial & Appeal Board (Board) decision holding that the term “self-similar” was not indefinite and denying leave to file a sanctions motion. ClearOne, Inc. v....more

McDermott Will & Emery

Terms of Degree Not Always Indefinite

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The US Court of Appeals for the Federal Circuit overturned a district court determination that the claim terms “resilient” and “pliable” were indefinite. The Federal Circuit found that the claims, while broad, were...more

McDermott Will & Emery

Not a Bullseye: Defendant Must Rebut Presumption That Claims Lacking “Means” Language Don’t Fall Under § 112 ¶ 6

McDermott Will & Emery on

Reversing a district court finding of indefiniteness under 35 U.S.C. § 112 ¶ 6, the US Court of Appeals for the Federal Circuit found that the district court erred by ignoring unrebutted evidence that the challenged claim...more

McDermott Will & Emery

Establishing Indefiniteness Requires More Than Identifying “Unanswered Questions”

The US Court of Appeals for the Federal Circuit reversed a district court finding of indefiniteness for focusing solely on the language of the claims and ignoring the specification and prosecution history. Nature Simulation...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Case - January 2022 #5

Nature Simulation Systems Inc. v. Autodesk, Inc., Appeal No. 2020-2257 (Fed. Cir. Jan. 27, 2022) - In its only precedential patent decision this week, the Court of Appeals for the Federal Circuit corrected what it...more

McDermott Will & Emery

Means-Plus-Function Claims: Don’t Forget the “Way”

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The US Court of Appeals for the Federal Circuit affirmed a lower court’s findings of noninfringement, in part because the plaintiff had failed to prove the “way” element of the function-way-result test for a first...more

McDermott Will & Emery

Employment Agreement Assignment Provisions Don’t Reach Post-Employment Inventions

The US Court of Appeals for the Federal Circuit rejected a biotechnology company’s argument that assignment provisions in its employment agreements granted ownership rights in post-employment inventions. Bio-Rad Laboratories,...more

McDermott Will & Emery

Corresponding Structure Necessary to Support 'Module' Claim Element

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In determining whether a claim element invoked 35 USC § 112, ¶ 6, the US Court of Appeals for the Federal Circuit concluded that “module” was a nonce term and required sufficient corresponding structure in the patent...more

McDermott Will & Emery

Impossible; Cloud Storage Patent Claims Invalid for Indefiniteness or Not Infringed

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The US Court of Appeals for the Federal Circuit affirmed a district court’s determination that three patents directed to data synchronization were indefinite as lacking sufficient disclosed structure to support a means plus...more

McDermott Will & Emery

Stick to the Fax: Conflicting Statements Made During Prosecution Lead to Indefiniteness

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In deciding whether use of the term “passive link” to define a connection between a computer terminal and a fax machine rendered a patent claim indefinite, the US Court of Appeals for the Federal Circuit affirmed the district...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - February 2021 #2

Amgen Inc. v. Sanofi, Appeal No. 2020-1074 (Fed. Cir. Feb. 11, 2021) - In this week’s Case of the Week, the Federal Circuit affirmed a district court’s JMOL ruling that asserted claims of two related pharmaceutical patents...more

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