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Appellate Courts › Patents › United States Patent and Trademark Office

A&O Shearman

Non-Application Of Interference Estoppel By PTAB In An IPR Institution Decision Found To Be Unreviewable

A&O Shearman on

On July 22, 2025, the Court of Appeals for the Federal Circuit concluded that the Patent Trial and Appeal Board’s (the “PTAB”) decision not to apply interference estoppel and, therefore, to institute an inter partes review...more

Proskauer - The Patent Playbook

PTO Defends its Recent Policy Changes Regarding Discretionary Denials

Proskauer - The Patent Playbook on

In the past few months, the U.S. Patent and Trademark Office (“PTO”) Acting Director has made substantial changes to the process for, and factors considered in, exercising discretion to deny institution of an inter partes...more

Knobbe Martens

Argument Forfeited When Raised for the First Time Fourteen Months After an Appeal

Knobbe Martens on

ODYSSEY LOGISTICS & TECHNOLOGY CORP. v. STEWART - Before Dyk, Reyna, and Stoll.  Appeal from the United States District Court for the Eastern District of Virginia. A patent applicant forfeited its Appointments Clause...more

McDermott Will & Emery

An Odyssey of Timeliness: Appointments Clause Arguments Must Be Preserved

McDermott Will & Emery on

Citing forfeiture, the US Court of Appeals for the Federal Circuit upheld the dismissal of a complaint against the US Patent & Trademark Office (PTO). The complaint sought director review of a 2018 Patent Trial & Appeal Board...more

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

2024 Federal Circuit IP Appeals: Summaries of Key 2024 Decisions

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

2024 brought exciting developments at the Federal Circuit. The court issued its first en banc decision in a patent case in five years in LKQ, which significantly altered the standard for proving obviousness of a design...more

Warner Norcross + Judd

Federal Circuit Affirms the Use of ‘Secret’ Prior Art

Warner Norcross + Judd on

In a recent precedential opinion, the United States Court of Appeals for the Federal Circuit affirmed that a patent application constitutes prior art as of its filing date, not its publication date. In Lynk Labs. Inc. v....more

Bradley Arant Boult Cummings LLP

High Court to Review Whether Assignor Estoppel Prevents Assignor from Filing an IPR or Relying on a Prior Invalidity Decision

Bradley Arant Boult Cummings LLP on

Last spring in Hologic, Inc. v. Minerva Surgical, Inc., the Federal Circuit ruled that the doctrine of assignor estoppel does not prevent an assignor from lodging a validity challenge of either patent in an IPR proceeding. In...more

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