News & Analysis as of

Prior Art Assignor Estoppel

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

Manatt, Phelps & Phillips, LLP

Supreme Court: Assignor Estoppel Survives, but Only for Explicit or Implicit Representations

In Minerva Surgical, Inc. v. Hologic, Inc., the Supreme Court held, in a 5–4 opinion, that the doctrine of assignor estoppel continues to apply, but only for an assignor’s invalidity assertion that contradicts explicit or...more

Haug Partners LLP

2021 Year in Review: Noteworthy Precedent for Patent Litigators

Haug Partners LLP on

As the world marched forward in the face of the lingering covid-19 global pandemic, the Supreme Court and Federal Circuit followed suit, issuing several noteworthy decisions of which patent litigators should be aware in 2022....more

Knobbe Martens

Federal Circuit Review - June 2021

Knobbe Martens on

Bulk-Filed Patent Applications Claiming Distant Priority Trigger Prosecution Laches - In Hyatt v. Hirshfeld, Appeal No. 18-2390, the Federal Circuit held that the PTO met its burden to prove prosecution laches for bulk-filed...more

McDonnell Boehnen Hulbert & Berghoff LLP

Oral Argument in Minerva Surgical Inc. v. Hologic, Inc.

The Supreme Court heard oral argument last week in Minerva Surgical Inc. v. Hologic, Inc. over the issue of assignor estoppel. As a reminder, the case arose in an infringement suit over U.S. Patent Nos. 6,782,183 and...more

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

2019 Report: Federal Circuit Appeals from the PTAB - Summaries of Key 2018 Decisions

In 2018, the U.S. Court of Appeals for the Federal Circuit docketed close to 600 appeals from the U.S. Patent and Trademark Office (USPTO). That is the second highest number since starting to hear post-American Invents Act...more

Schwabe, Williamson & Wyatt PC

Latest Federal Circuit Court Cases - November 2018 #2

Acceleration Bay, LLC v. Activision Blizzard Inc., Appeal Nos. 2017-2084, -2085, -2095, -2096, -2097, -2098, -2099, -2117, 2118 (Fed. Cir. Nov. 6, 2018) In appeals of six inter partes review final decisions on three...more

Knobbe Martens

Federal Circuit Review | October 2016

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Withdrawal of Claims During Prosecution Can Trigger Prosecution History Estoppel In UCB, Inc. v. Yeda Research and Development Co., Ltd., Appeal No. 2015-1957, the Federal Circuit held that prosecution estoppel can apply even...more

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