News & Analysis as of

United States Patent and Trademark Office Appeals Estoppel

The U.S. Patent and Trademark Office is an agency of the United States Department of Commerce that serves a fundamental role in the U.S. intellectual property system by issuing patents and registering trademarks.... more +
The U.S. Patent and Trademark Office is an agency of the United States Department of Commerce that serves a fundamental role in the U.S. intellectual property system by issuing patents and registering trademarks.    less -
Foley Hoag LLP

Reshaped IPR Landscape: Narrower Estoppel and Fewer New Cases

Foley Hoag LLP on

Key Takeaways - - A recent Federal Circuit decision in a case involving an inter partes review (IPR) significantly narrowed a patentee’s ability to rely on estoppel to block a defendant from raising invalidity grounds. -...more

ArentFox Schiff

Federal Circuit Refuses to Extend IPR Estoppel to Unadjudicated Patent Claims

ArentFox Schiff on

In Kroy IP Holdings, LLC v. Groupon, Inc., 127 F.4th 1376 (Fed. Cir. 2025), the Federal Circuit held that patentees in district court are not collaterally estopped from asserting claims that were not immaterially different...more

Akin Gump Strauss Hauer & Feld LLP

Federal Circuit Upholds USPTO Authority to Estop Patentees from Obtaining Patent Claims 'Not Patentably Distinct' from Previously...

The Federal Circuit recently upheld the USPTO’s authority under the estoppel provision 37 C.F.R. § 42.73(d)(3)(i) to prohibit a patent owner from obtaining patent claims that are not patentably distinct from claims previously...more

McDermott Will & Schulte

No Mulligans Here: PTO Rewinds Reexamination Based on Estoppel

The US Patent & Trademark Office (PTO) terminated a pending ex parte reexamination after finding that the challenger was estopped because the prior art references could have been raised in a prior inter partes review (IPR)....more

McDermott Will & Schulte

What Preclusion? Post-IPR Reexam Moves Forward

The US Court of Appeals for the Federal Circuit revived a petitioner’s validity challenge seeking ex parte review at the US Patent & Trademark Office (PTO), reversing a district court decision dismissing its complaint seeking...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Case - February 2022 #3

Alarm.com Inc. v. Hirshfeld, Appeal No. 2020-2102 (Fed. Cir. Feb. 24, 2022)- In an appeal from the U.S. District Court for the Eastern District of Virginia, the Federal Circuit addressed whether the ex parte reexamination...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.

Federal Circuit Appeals from the PTAB and ITC: Summaries of Key 2020 Decisions: Introduction

Last year, the global COVID-19 pandemic created unprecedented challenges for American courts. By making several changes, however, the U.S. Court of Appeals for the Federal Circuit was able to largely continue its operations....more

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

Federal Circuit Appeals from the PTAB and ITC: Summaries of Key 2020 Decisions

[co-author: Kathleen Wills] Last year, the global COVID-19 pandemic created unprecedented challenges for American courts. By making several changes, however, the U.S. Court of Appeals for the Federal Circuit was able to...more

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

PTAB Strategies and Insights - September 2020

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

McDermott Will & Schulte

A Decision on Appeal Is Final . . . Mostly

In the latest round of the Apple/VirnetX saga, the US Court of Appeals for the Federal Circuit held to its precedents in determining when 35 USC § 317(b) estoppel is triggered against inter partes re-examinations. VirnetX...more

Schwabe, Williamson & Wyatt PC

Fresh From the Bench: Latest Federal Circuit Court Cases

PATENT CASE OF THE WEEK - WesternGeco LLC v. Ion Geophysical Corp., Appeal Nos. 2016-2099, -2100, -2101, -2332, -2333, -2334 (Fed. Cir. May 7, 2018) - In an appeal from an inter partes review, the Federal Circuit...more

Jones Day

Disclaimer Before Institution May Not Avoid Adverse Judgment Estoppel

Jones Day on

In a split decision that drew separate opinions from each of the panel members, the Federal Circuit recently affirmed the PTAB’s decision to enter an adverse judgment against a patentee, even though the patentee had properly...more

Knobbe Martens

Federal Circuit Review | April 2016

Knobbe Martens on

Federal Circuit Upholds Broad Scope of CBM Review and Explains that an Internet Reference Must be Indexed by a Search Engine to Qualify as a Prior Art Publication - In Blue Calypso, LLC v. Groupon, Inc., Appeal Nos....more

Morgan Lewis

Federal Circuit Carves Out Exception to IPR Estoppel Provisions

Morgan Lewis on

The Federal Circuit recently held that petitioners will not be estopped from raising in subsequent proceedings any noninstituted grounds deemed “redundant” by the Board or otherwise denied without meritorious consideration....more

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