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Claim Construction Indefiniteness

Knobbe Martens

Federal Circuit Review | March 2024

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Defining Indefiniteness: When Are Claim Limitations Contradictory? In Maxell, Ltd., v. Amperex Technology Limited, Appeal No. 23-1194, the Federal Circuit held that  two claim limitations are not contradictory if they...more

McDermott Will & Emery

That’s So Metal: Narrow Limitation Doesn’t Contradict Broader One

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The US Court of Appeals for the Federal Circuit reversed a district court’s indefiniteness determination, finding that two claim limitations – one broad and one narrow – were not contradictory since it was possible to meet...more

Axinn, Veltrop & Harkrider LLP

Indefinite Contradiction or Inartful Claim Narrowing?

Earlier today the Federal Circuit in Maxell v. Amperex, No. 23-1194, vacated a District Court’s indefiniteness determination after distinguishing an indefinite patent claim having contradictory claim limitations from a patent...more

Axinn, Veltrop & Harkrider LLP

“Inelegant” Language Does Not an Indefinite Claim Term Make

To follow up on my February 6, 2024 post, Federal Circuit Judges Prost, Taranto, and Chen heard oral argument on February 9, 2024 in Maxell v. Amperex, No. 23-1194, concerning a claim term that the District Court had found...more

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

2023 Design Patents Year in Review: Analysis & Trends: U.S. District Courts: Significant Design Patent Cases on District Court...

2023 was another busy year for district court decisions! There were patent- and case-dispositive design patent decisions across a range of venues and at a range of case postures, including claim construction rulings, summary...more

Axinn, Veltrop & Harkrider LLP

“A”/“An” Means “One or More,” Said the Federal Circuit…Again

18 8 In ABS Global, Inc. v. Cytonome/ST, LLC, No. 2022-1761, 2023 WL 6885009 (Fed. Cir. Oct. 19, 2023), the Federal Circuit issued a precedential reminder that the use of “a” or “an” means “one or more” in an open-ended claim...more

WilmerHale

Federal Circuit Patent Watch: Stick to the original idea in reissues

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Precedential Federal Circuit Opinions - IN RE: FLOAT'N'GRILL LLC [OPINION] (2022-1438, 7/12/2023) (Prost, Linn, and Cunningham) - Linn, J. The Court affirmed the Patent Trial and Appeal Board’s decision “affirming the...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

Morrison & Foerster LLP - Federal Circuitry

Last Week In The Federal Circuit (January 17 – January 20): “Larger Than” Or “Large Enough”?

If you think claim construction is more fun than watching paint peel, then you’re probably a patent lawyer. And what’s more fun than claim construction? Claim construction with an indefiniteness challenge, as happened in this...more

McDermott Will & Emery

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

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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

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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

Fish & Richardson

ITC Monthly Wrap-Up: July 2022

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​​​​​​​In July, there were four new complaints filed at the ITC: (1) Certain Soft Projectile Launching Devices, Components Thereof, Ammunition, and Products Containing Same, Inv. No. 337-TA-3629, filed by Hasbro, Inc., and...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

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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

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - March 2022 #4

Hunting Titan, Inc. v. DynaEnergetics Europe GMBH, Appeal Nos. 2020-2163, -2191 (Fed. Cir. March 24, 2022) - In a notable review of the USPTO’s new Precedential Opinions Panel, the Federal Circuit discussed the...more

Patterson Belknap Webb & Tyler LLP

Judge DeArcy Hall Finds Asserted Claims Indefinite Because “Absorbing” Heat via an Endothermic Chemical Reaction Cannot Mean...

On February 24, 2022, Judge LaShann DeArcy Hall found patent claims directed to pressure-activated self-cooling mats for pets to be invalid as indefinite in a case filed by The Green Pet Shop Enterprises LLC against Fine...more

Knobbe Martens

Federal Circuit Newsletter - January 2022 (Chinese)

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避而不谈可能支持否定性权利要求限定 - 在 Novartis Pharmaceuticals 诉 Accord Healthcare Inc. 一案(上诉案件编号:21- 1070)中,联邦巡回上诉法院认为,一项对药物“速效剂量”避而不谈的专利申请,为要求不存在此类剂量的否定 性权利要求限制提供了书面说明支持。 ...more

Knobbe Martens

Federal Circuit Newsletter - January 2022 (Japanese)

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記述がないことがクレームの否定的限定のサポートと解釈できる場合がある Federal Circuit は、Novartis Pharmaceuticals v. Accord Healthcare Inc. (Appeal No. 21-1070) に おいて、薬剤の「初回負荷用量」についての記述がない特許出願は、そのような用量がないことを要 求するクレームの否定的限定に記述によるサポートを提供していることになると判示した。 ...more

Knobbe Martens

Federal Circuit Review - January 2022

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January 2022 Federal Circuit Newsletter (Japanese) January 2022 Federal Circuit Newsletter (Chinese)  Silence May Support Negative Claim Limitation In Novartis Pharmaceuticals v. Accord Healthcare Inc. Appeal No. 21-1070, the...more

Snell & Wilmer

Federal Circuit Rejects “Unanswered Questions” Indefiniteness Standard

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Last week, a split Federal Circuit panel reversed a decision invalidating certain computer-aided-design patent claims because the district court used an incorrect indefiniteness standard....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

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