News & Analysis as of

New Guidance Patent Trial and Appeal Board Corporate Counsel

King & Spalding

USPTO Acting Director Stewart Limits Use of General Knowledge in IPR Petitions

King & Spalding on

On July 31, 2025, Acting USPTO Director Coke Morgan Stewart released a memo instructing the agency “that applicant admitted prior art (AAPA), expert testimony, common sense, and other evidence that is not ‘prior art...more

McCarter & English, LLP

New Patent Office Guidance Raises Bar for IPR Petitioners

The Patent Office recently announced that it will begin enforcing a rule that requires that inter partes review (IPR) petitions “specify where each element of the claim is found in the prior art patents or printed...more

Fish & Richardson

USPTO Limits Use of General Knowledge in IPR Proceedings

Fish & Richardson on

On July 31, the United States Patent and Trademark Office issued a memorandum (“Memo”) announcing that the Office will renew enforcement of 37 C.F.R. § 42.104(b)(4) (“Rule 104(b)(4)”) in inter partes review (IPR) proceedings....more

Dinsmore & Shohl LLP

Patent Trial and Appeal Board Hearings to be Held in Person

Dinsmore & Shohl LLP on

A recent notice from the United States Patent and Trademark Office (USPTO) informed patent owners that “Starting September 1, 2025 all Patent Trial and Appeal Board (PTAB) hearings will be held in person.” (Emphasis added)....more

Proskauer - The Patent Playbook

Further Shifts in Patent Office Guidance for Discretionary Denials Signal Uphill Battles for Patent Challengers

On the heels of the rescission of the Fintiv guidance memorandum, the U.S. Patent and Trademark Office has again reshaped the PTAB’s approach to discretionary denials. On March 26, 2025, the Acting Director issued a new...more

Morrison & Foerster LLP

Pivot At The PTAB: The Acting Director Bifurcates Review

With two memoranda this week, the United States Patent and Trademark Office (“USPTO”) has made significant changes to trials at the Patent Trial and Appeal Board (“PTAB”). Those trials—introduced in 2012 by the Leahy-Smith...more

Foley & Lardner LLP

What Will Arthrex Review Look Like?

Foley & Lardner LLP on

Last week, the Supreme Court issued its decision in United States v. Arthrex, Inc. As explained in more detail in our June 24, 2021 post, after holding that “the unreviewable authority wielded by APJs during inter partes...more

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