News & Analysis as of

Patent Applications Statutory Interpretation Prior Art

Fitch, Even, Tabin & Flannery LLP

Federal Circuit Limits Reliance on Provisional Priority Date Under Section 102(e)(1)

On March 24, the Federal Circuit held in In re Riggs that for a published non-provisional patent application to be prior art under pre-AIA 35 U.S.C. § 102(e)(1) based on an earlier provisional filing date, all citations to...more

McDermott Will & Emery

Detour Ahead: New Approach to Assessing Prior Art Rejections Under § 102(e)

The US Court of Appeals for the Federal Circuit established a more demanding test for determining whether a published patent application claiming priority to a provisional application is considered prior art under pre-America...more

Goodwin

The Court of Appeals for the Federal Circuit’s In Re Riggs Decision: 35 USC 102(e) Prior Art Requires Written Description Support...

Goodwin on

On March 24, 2025, the US Court of Appeals for the Federal Circuit (Federal Circuit) issued a decision titled In Re: Riggs (the Riggs decision) that vacated a decision of the Patent Trial and Appeal Board (PTAB) of the US...more

McDermott Will & Emery

A Lynk to the Past: Published Applications Are Prior Art as of Filing Date

McDermott Will & Emery on

The US Court of Appeals for the Federal Circuit affirmed a Patent Trial & Appeal Board decision finding challenged claims invalid based on a published patent application that, in an inter partes review (IPR) proceeding, was...more

Rothwell, Figg, Ernst & Manbeck, P.C.

Reviewing 2024's Crucial Patent Law Developments

As 2024 draws to a close, several crucial developments — some aimed at modernizing long-standing legal practices, others addressing emerging challenges — have reached patent law. Originally published in Law360 - December...more

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