News & Analysis as of

Patents Patent Infringement Appellate Courts

Sheppard Mullin Richter & Hampton LLP

Federal Circuit Vacates Summary Judgement: Limitations from Specifications Should Not Have Been Imported Into the Claims

The Federal Circuit vacated and remanded the district court’s summary judgement of noninfringement, finding that the lower court had improperly construed the claim term “pull cord.” The district court had erroneously limited...more

McDermott Will & Emery

High Burden Dooms Intra-District Transfer Request

McDermott Will & Emery on

The US Court of Appeals for the Federal Circuit denied a mandamus petition requesting transfer from the Marshall division to the Sherman division within the US District Court for the Eastern District of Texas, finding that...more

Jones Day

Federal Circuit Reverses District Court’s Application Of Collateral Estoppel

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Kroy IP Holdings, LLC sued Groupon, Inc., alleging infringement of 13 claims of U.S. Patent No. 6,061,660 (“’660 patent’), which relates to incentive programs over computer networks. Those claims were invalidated via...more

Rothwell, Figg, Ernst & Manbeck, P.C.

Product-by-Process Analysis: Invalidity ≠ Infringement

On March 4, 2025, the Federal Circuit affirmed the Patent Trial and Appeal Board’s (“PTAB”) decision in Restem, LLC v. Jadi Cell, LLC, No. 23-2054, 2025 WL 679195, at *1 (Fed. Cir. Mar. 4, 2025), finding that the patent...more

Knobbe Martens

Pulling the Cord on Unstated Claims Limitations

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IQRIS TECHNOLOGIES LLC v. POINT BLANK ENTERPRISES, INC. Before Lourie, Linn, and Stoll. Appeal from the United States District Court for the Southern District of Florida - The district court erred in construing the term “pull...more

Sheppard Mullin Richter & Hampton LLP

Federal Circuit Touches on Appellate Standing and Prior Art Determinations in the Context of Post-Grant Review Proceedings

In CQV Co. Ltd. v. Merck Patent GmbH, the Federal Circuit addressed (1) the interaction of indemnification agreements with Article III standing for appeals of post-grant review decisions of the Patent Trial and Appeal Board;...more

McDermott Will & Emery

Collateral Estoppel Doesn’t Apply to Unchallenged IPR Claims

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The US Court Appeals for the Federal Circuit found that despite a Patent Trial & Appeal Board determination that certain challenged patent claims were unpatentable based on a preponderance of the evidence standard, the patent...more

Fish & Richardson

The Most Interesting Appellate Cases of 2024

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Appellate courts issued a variety of notable intellectual property (IP) cases in 2024, including cases touching on Orange Book listings, extraterritoriality, willful infringement, design patent obviousness, and public...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - January 2025 #3

Bearbox LLC v. Lancium LLC, Appeal No. 2023-1922 (Fed. Cir. Jan. 13, 2025) In this week’s Case of the Week, the Federal Circuit affirmed a district court’s determination that appellants Bearbox and Austin Storms—Bearbox’s...more

Warner Norcross + Judd

Federal Circuit Affirms the Use of ‘Secret’ Prior Art

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In a recent precedential opinion, the United States Court of Appeals for the Federal Circuit affirmed that a patent application constitutes prior art as of its filing date, not its publication date. In Lynk Labs. Inc. v....more

Knobbe Martens

A Patent Must Describe What Is Claimed, Not What Infringes

Knobbe Martens on

Before Lourie, Prost, and Reyna. Appeal from the U.S. District Court for the District of Delaware. Summary: A patent was not invalid for lack of written description for failing to describe the specific infringing embodiment...more

Weintraub Tobin

Federal Circuit Vacates VLSI’s $2.2 Billion Damage Award Against Intel

Weintraub Tobin on

On December 4, 2023, the Court of Appeals for the Federal Circuit vacated a $2.18 billion damage award against defendant Intel Corporation because it found plaintiff VLSI Technology LLC had erred on its damages calculation,...more

Weintraub Tobin

Federal Circuit Continues to Strike Down Patents as Abstract Ideas

Weintraub Tobin on

The Federal Circuit Court of Appeals has again relied on the Supreme Court’s Alice case to invalidate patents on the grounds that they are directed to an abstract idea. Realtime Data LLC v. Fortinet Inc. ( Fed. Cir. 8/2/2023)...more

WilmerHale

CAFC Patent Cases - October 2021 #2

WilmerHale on

Precedential Federal Circuit Opinions - CELGENE CORPORATION v. MYLAN PHARMACEUTICALS INC. [OPINION] (2021-1154, 11/05/2021) (PROST, CHEN, and HUGHES) - Prost, J. This is a case about venue and pleading under the...more

McDermott Will & Emery

If it’s Not Legit, You Can’t Admit

McDermott Will & Emery on

The US Court of Appeals for the Federal Circuit affirmed a district court ruling of non-infringement based on the inadmissibility of unauthenticated printouts of source code as evidence. Wi-LAN Inc. v. Sharp Elecs. Corp.,...more

Bradley Arant Boult Cummings LLP

High Court to Review Whether Assignor Estoppel Prevents Assignor from Filing an IPR or Relying on a Prior Invalidity Decision

Last spring in Hologic, Inc. v. Minerva Surgical, Inc., the Federal Circuit ruled that the doctrine of assignor estoppel does not prevent an assignor from lodging a validity challenge of either patent in an IPR proceeding. In...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - November 2020 #3

C.R. Bard Inc. v. AngioDynamics, Inc., Appeal No. 2019-1756, -1934 (Fed. Cir. Nov. 10, 2020) - Our Case of the Week is one of two cases decided this week in which the Federal Circuit finds that a district court jumped the...more

Morrison & Foerster LLP - Federal Circuitry

Last Week in the Federal Circuit (August 24-28): No Judicial Estoppel from Inventorship About-Face

Last week the summer was winding down and the Federal Circuit was gearing up for its September argument session. But the Court still found time to hand down a number of decisions—17 in total. Below we provide our usual weekly...more

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