News & Analysis as of

Patent Invalidity Patent Infringement Collateral Estoppel

Jenner & Block

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

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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

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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

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

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

WilmerHale

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

WilmerHale on

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

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

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.

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.

[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

Holland & Knight LLP

SDNY: Collateral Estoppel Halts Social Media Patent Case

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In late 2018, Plaintiff NetSoc sued Chegg in the U.S. District Court for the Southern District of New York (SDNY), alleging infringement of a patent directed to "establishing and using a social network to facilitate people 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

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 Court Cases - December 2018 #3

PATENT CASE OF THE WEEK - VirnetX Inc. v. Apple, Inc., Appeal Nos. 2017-2490, -2494 (Fed. Cir. Dec. 10, 2018) The Federal Circuit affirmed two final written decisions of the Patent Trial and Appeal Board (“PTAB”), which...more

Jones Day

Federal Circuit: PTAB Affirmance Estops All Pending Actions Involving Patent

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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

Troutman Pepper Locke

Once The Federal Circuit Affirms A PTAB Finding Of Invalidity, Collateral Estoppel Prevents Patent Owner From Asserting The Claims...

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On May 23, 2018, in XY, LLC v. Trans Ova Genetics, L.C., CAFC held that its affirmance of PTAB’s invalidity decision regarding certain claims of a patent owned by XY in a separate appeal involving a different defendant must...more

Schwabe, Williamson & Wyatt PC

2017 Supreme Court and Precedential Patent Cases From the Federal Circuit, With Some Significant Cases from 2016

Arbitration - Waymo v. Uber Technologies, 870 F.3d 1342 (Fed. Cir. 2017) - Waymo sued Uber and others for trade secret misappropriation and patent infringement. Uber contends that Waymo should be compelled to...more

Morris James LLP

Court Denies Fee Application

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Robinson, J. Defendants’ motion for attorney fees is denied. Defendants argue that this is an exceptional case because plaintiff pursued objectively unreasonable infringement and validity positions, which were barred by...more

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