News & Analysis as of

Inter Partes Review (IPR) Proceeding Patent Infringement Collateral Estoppel

Jenner & Block

Inter Partes Review Invalidity Finding Does Not Collaterally Estopell Assertion of Unchallenged Claims in Same Patent

Jenner & Block on

In a February 10, 2025 order, the Federal Circuit Court of Appeals rejected the application of the collateral estoppel doctrine to patent claims asserted in a district court infringement action where other claims in the same...more

Jones Day

Federal Circuit Reverses District Court’s Application Of Collateral Estoppel

Jones Day on

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

Knobbe Martens on

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

Hudnell Law Group on

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

McDermott Will & Emery on

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

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

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

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

McDermott Will & Emery on

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

WilmerHale on

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

McDermott Will & Emery

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

McDermott Will & Emery on

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

WilmerHale

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

WilmerHale on

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

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

2021 PTAB Year in Review: Analysis & Trends

[co-author: Jamie Dohopolski] Love it or hate it, ignore the USPTO Patent Trial and Appeal Board (PTAB) at your peril. The introduction of the PTAB as part of the America Invents Act over ten years ago has forever changed...more

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

Federal Circuit Appeals from the PTAB and ITC: Summaries of Key 2021 Decisions

[co-author: Jamie Dohopolski] Last year, the continued global COVID-19 pandemic forced American courts to largely continue the procedures set in place in 2020. The U.S. Court of Appeals for the Federal Circuit was no...more

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

[Webinar] Federal Circuit Appeals from the PTAB and ITC: Summaries of Key 2021 Decisions - February 17th, 1:00 pm - 2:00 pm EST

Sterne, Kessler, Goldstein & Fox invites you to a webinar, "Federal Circuit Appeals from the PTAB and ITC: Summaries of Key 2021 Decisions," on Thursday, February 17, 2022. In conjunction with the release of the firm's...more

Akin Gump Strauss Hauer & Feld LLP

Timing is Everything: Accused Infringer’s IPR Victory Estops Its Own Prior Art Invalidity Defenses, but Does Not Estop Plaintiff...

Inter partes review (IPR) proceedings can give rise to statutory and collateral estoppel. But these two bases for estoppel attach at different times, which can lead to asymmetrical outcomes in related district court...more

Jones Day

Collateral Estoppel Applied by District Court Following IPR on Similar Patents

Jones Day on

In Think Prod., Inc. v. ACCO Brands Corp., No. 18-CV-07506, 2019 WL 6609427, at *1 (N.D. Ill. Dec. 5, 2019), the District Court addressed whether the plaintiff patent ower was collaterally estopped from arguing validity in...more

Mintz - Intellectual Property Viewpoints

Collateral estoppel does not attach to PTAB invalidity determination pending appeal

Recently, in Sanofi-Aventis v. Mylan, 2:17-cv-09105-SRC-CLW, Judge Stanley Chesler of the United States District Court, District of New Jersey, denied a motion by defendant Mylan for summary judgment of invalidity of asserted...more

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

PTAB Strategies and Insights - September 2019: PTAB Further Clarifies DJ Action Time Bar and Statutory Disclaimers

The PTAB designated at least three more decisions as precedential. Of note, two of the cases rely on the Federal Circuit’s en banc decision in Click to Call, which is scheduled for argument at the Supreme Court on December 9,...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - September 2019 #2

Curver Luxembourg, SARL v. Home Expressions Inc., Appeal No. 2018-2214 (Fed. Cir. Sept. 12, 2019) In a significant case in the field of design patents, the Federal Circuit clarified the scope of design patent infringement...more

McDermott Will & Emery

Pre-Institution Merger Creates Time Bar Under § 315(b)

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Addressing for the first time whether real-parties-in-interest (RPIs) are evaluated at the time a petition is filed or at the time of institution for purposes of § 315(b), the US Court of Appeals for the Federal Circuit held...more

Bradley Arant Boult Cummings LLP

Federal Circuit Refuses to Resuscitate Prostate Cancer Drug Patent - Intellectual Property News

In a precedential decision delivered this week, the Federal Circuit shot down arguments from Appellants BTG International Limited; Janssen Biotech, Inc.; Janssen Oncology, Inc.; and Janssen Research & Development, LLC (BTG),...more

Schwabe, Williamson & Wyatt PC

Latest Federal Circuit Court Cases - November 2018 #3

ArcelorMittal Atlantique Et Lorraine v. AK Steel Corporation, Appeal No. 2017-1637 (Fed. Cir. Nov. 14, 2018) - In an opinion originally filed as sealed on Nov. 5 and unsealed on Nov. 18, the Federal Circuit vacated and...more

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

PTAB Strategies and Insights - September 2018: Best Strategies for ITC Respondents When Considering a PTAB Action

When faced with allegations of patent infringement at the International Trade Commission (ITC), a respondent must quickly evaluate whether or not to request an AIA review (hereinafter, inter partes review for convenience) at...more

Jones Day

Federal Circuit: PTAB Affirmance Estops All Pending Actions Involving Patent

Jones Day on

In XY, LLC v. Trans Ova Genetics, L.C., Nos. 2016-2054, 2016-2136 (Fed. Cir. May 23, 2018), an appeal from the District of Colorado, the Federal Circuit gave preclusive effect to a PTAB finding, something it has done several...more

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