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Patents Collateral Estoppel

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

Vorys, Sater, Seymour and Pease LLP

The Precedent: The Federal Circuit Clarifies When Collateral Estoppel Applies Following Inter Partes Review Proceedings in Kroy IP...

In this edition of The Precedent, we outline the Federal Circuit's decision in Kroy IP Holdings, LLC v. Groupon, Inc. Overview - The Federal Circuit held that the Patent Trial and Appeal Board’s (PTAB) finding of...more

Knobbe Martens

Federal Circuit Review | February 2025

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In HD Silicon Solutions LLC V. Microchip Technology Inc., Appeal No. 23-1397, the Federal Circuit held that  all but one patent claim were invalid as obvious because the claimed material, as properly construed, was disclosed...more

Hudnell Law Group

Differing Burdens of Proof Limits Estoppel Effect of PTAB Final Written Decision

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On February 10, 2025, the United States Court of Appeals for the Federal Circuit issued a decision in Kroy IP Holdings, LLC v. Groupon, Inc., reversing and remanding a district court ruling that had dismissed Kroy’s patent...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

WilmerHale

Federal Circuit Patent Watch: Federal Circuit Orders Remanded Case Reassigned to New Judge, Finding That Trial Judge’s Statements...

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Precedential and Key Federal Circuit Opinions - HD SILICON SOLUTIONS LLC v. MICROCHIP TECHNOLOGY INC. [OPINION] (2023-1397, 2/6/2025) (Lourie, Stoll, Cunningham) - Lourie, J. The Board affirmed the Final Written...more

Fitch, Even, Tabin & Flannery LLP

Federal Circuit Clarifies Patent Claim Assertion After PTAB Unpatentability Decisions

On February 10, the Federal Circuit held in Kroy IP Holdings, LLC v. Groupon, Inc. that a final written decision of the Patent Trial and Appeal Board (PTAB) concluding that certain claims are unpatentable does not prevent the...more

Fenwick & West LLP

Key Federal Circuit Patent Rulings Impacting Your Business - Recent Rulings - January 2025

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Contour IP v. GoPro: Federal Circuit Offers Insight into Alice’s Step One Analysis. In Contour IP v. GoPro, the Federal Circuit reversed a summary judgment order invalidating two of Contour IP’s patents directed to...more

Robins Kaplan LLP

Purdue Pharma L.P v. Accord Healthcare Inc. - OxyContin® (oxycodone HCl)

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Case Name: Purdue Pharma L.P v. Accord Healthcare Inc., Civ. No. 22-913-WCB, 2024 WL 4120717 (D. Del. Sept 9, 2024) (Bryson, J.) Drug Product and Patent(s)-in-Suit: OxyContin® (oxycodone HCl); U.S. Patent No. 11,304,908 (“the...more

Wilson Sonsini Goodrich & Rosati

The PTAB Review - October 2024

The PTAB Review begins by exploring collateral estoppel from unpatentability determinations in inter partes review (IPR) proceedings. Next, it summarizes recent developments at the U.S. Patent and Trademark Office relevant to...more

McDermott Will & Emery

Got Pillaged? Not If You Didn’t Follow the APA and FTCA

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The US Court of Appeals for the Federal Circuit affirmed a district court decision dismissing claims under the Administrative Procedure Act (APA) and Federal Tort Claims Act (FTCA) against the US Patent & Trademark Office...more

Baker Botts L.L.P.

Third Quarter 2024 Federal Circuit Law Update

Baker Botts L.L.P. on

Since serving as a Federal Circuit clerk, Michael Hawes has monitored that court's precedential opinions and prepares a deeply outlined index by subject matter (invalidity, infringement, claim construction, etc.) of relevant...more

McDermott Will & Emery

A New Vision: Collateral Estoppel Doesn’t Extend to Related Claims

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The US Court of Appeals for the Federal Circuit reversed a district court order excluding expert validity testimony based on collateral estoppel stemming from an inter partes review (IPR) proceeding of a related patent,...more

WilmerHale

Federal Circuit Patent Watch: An Expert Need Not Have Acquired the Requisite Skill Level Prior to the Time of the Invention

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Precedential and Key Federal Circuit Opinions - WISCONSIN ALUMNI RESEARCH FOUNDATION v. APPLE INC. [OPINION] (2022-1884, 8/28/2024) (Prost, Taranto, and Chen) - Prost, J. The Court affirmed two final judgments of the...more

Fenwick & West LLP

En banc Hearing Petition Filed on Recent Fed. Circ. Collateral Estoppel Decision

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The Court of Appeals for the Federal Circuit has sparked debate following a recent ruling on the Patent Trial and Appeal Board's (PTAB) application of estoppel provisions in invalidating amended claims in inter partes...more

McDermott Will & Emery

Beware Equitable Doctrine of Issue Preclusion in Multiparty, Multivenue Patent Campaigns

Addressing for the first time whether an invalidity order merges with a voluntary dismissal for purposes of finality, the US Court of Appeals for the Federal Circuit held that an interlocutory order merges with the final...more

Pillsbury Winthrop Shaw Pittman LLP

Preclusion Confusion: Federal Circuit Decision in ZyXEL Communications v. UNM Rainforest Sparks Uncertainty at the PTAB

In ZyXEL, the petitioner unexpectedly received a second chance to argue against the patentability of the patentee’s substitute claims, even though the U.S. Patent Trial & Appeal Board (PTAB) had already found those claims...more

Morgan Lewis

Federal Circuit Clarifies Scope and Timing of Collateral Estoppel for Claims Under IPR

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In a recent opinion, the Federal Circuit added several new wrinkles to amendment practice in inter partes review proceedings. The court affirmed the Patent Trial and Appeal Board’s determination that most of the original...more

Robins Kaplan LLP

Purdue Pharma L.P. v. Accord Healthcare Inc., - OxyContin® (Oxycodone HCl)

Robins Kaplan LLP on

Case Name: Purdue Pharma L.P. v. Accord Healthcare Inc., C.A. No. 22-913-WCB, 2023 WL 5835811 (D. Del. Sept. 8, 2023) (Bryson, J.) - Drug Product and Patent(s)-in-Suit: OxyContin® (oxycodone HCl); U.S. Patents Nos. 11,304,908...more

McDermott Will & Emery

See Here: No Standing Based on Vague Future Plans or Adverse Priority Findings

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The US Court of Appeals for the Federal Circuit dismissed an appeal from a final written decision in an inter partes review (IPR) proceeding, finding that the petitioner lacked standing because it suffered no injury in fact....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

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

PTAB Strategies and Insights Newsletter - May 2023: Beware of Collateral Estoppel at the PTAB

When thinking about estoppel and the PTAB, the § 315(e) estoppels—relating to grounds a petitioner raised or reasonably could have raised—are likely the first to come to mind. However, other types of estoppel, such as...more

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

PTAB Strategies and Insights Newsletter - May 2023

The PTAB Strategies and Insights newsletter provides quarterly updates and insights into how best to handle PTAB trial proceedings at the USPTO. It is designed to increase return on investment for all stakeholders looking at...more

Haug Partners LLP

Google v. Hammond: IPR and Collateral Estoppel

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On December 8 2022, the Federal Circuit in Google LLC v. Hammond Development Int’l, Inc. affirmed in part and reversed in part the PTAB’s final written decision of an IPR holding that Google failed to prove that certain...more

WilmerHale

Collateral estoppel in IPR proceedings requires that the issues of patentability be identical, not that the patent claims need to...

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Precedential Federal Circuit Opinions - 1.  GOOGLE LLC v. HAMMOND DEVELOPMENT INTERNATIONAL, INC. [OPINION]  (21-2218, 12/8/2022) (Moore, Chen, and Stoll) - Moore, Chief J. Reversing in part and affirming in part...more

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