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Intellectual Property Protection Collateral Estoppel Appeals

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

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

McDermott Will & Emery on

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

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

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.

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

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

Trademark Owner’s Fate Sealed Tight After Finding of Fraud on PTO

Addressing the issue of collateral estoppel, the US Court of Appeals for the Eighth Circuit upheld a ruling dismissing a trademark owner’s second infringement lawsuit against the same defendant after a finding that the...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

Akin Gump Strauss Hauer & Feld LLP

Federal Circuit Clarifies Burden of Proof on Challenges to Identification of Real Parties-in-Interest in IPR Proceedings

In Worlds Inc. v. Bungie, Inc., the Federal Circuit remanded an appeal from an inter partes review (“IPR”) instructing the Patent Trial and Appeal Board (“Board”) to reweigh the evidence in a manner that placed the ultimate...more

Troutman Pepper Locke

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

Troutman Pepper Locke on

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

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