News & Analysis as of

Statutory Interpretation United States Patent and Trademark Office Prior Art

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

Morrison & Foerster LLP

Discretionary Denials—Act II

On March 26, 2025, the Acting Director of the United States Patent and Trademark Office fundamentally changed how the Patent Trial and Appeal Board (“PTAB”) initially considers petitions in post grant proceedings under the...more

Sheppard Mullin Richter & Hampton LLP

Federal Circuit Provides Clarity on Use of Applicant Admitted Prior Art (“AAPA”) in IPRs

Qualcomm Incorporated v. Apple Inc., No. 23-1208 (Fed. Cir. 2025)—On April 23, 2025, the Federal Circuit reversed the Patent Trial and Appeal Board’s finding that claims of Qualcomm’s U.S. Patent No. 8,063,674 (“the ’674...more

Morrison & Foerster LLP

The Rise of System Art: The Federal Circuit Shelters System Art From IPR Estoppel

Prior art patents and publications have long been the primary source for anticipation and obviousness assertions by defendants in IP litigation. System art—an actual system or device—is a less common source of prior art due...more

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

Estoppel Certification in Reexamination

Estoppel certification in reexamination prevents relitigation of resolved issues....more

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

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

2024 PTAB Year in Review: Analysis & Trends

The Patent Trial and Appeal Board (PTAB) continues to play a pivotal role in shaping the intellectual property landscape. In 2024, several developments affecting PTAB practice emerged, from new rulemaking at the USPTO to key...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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