The Reexamination End-Run: When Second Bites at the Apple Become Strategy

A March 27, 2026, petition filed by Security First Innovations (SFI) does more than challenge a single reexamination proceeding—it shines a spotlight on a structural vulnerability in how post-grant review is functioning in practice. At its core, the filing argues that the U.S. Patent and Trademark Office (USPTO) is allowing what amounts to a procedural end-run around the statute, which is supposed to streamline post-grant challenges and lead to estoppel if the patent owner prevails.

Other Barks & Bites for Friday, April 10: USPTO Touts Reduced Backlog; Fifth Circuit Awards Google Transfer on Mandamus; and Third Circuit Says Online Publication of Copyrighted Building Codes is Transformative

This week in Other Barks and Bites: the EU’s GPAI Signatory Taskforce convenes a second meeting to focus on copyright issues like mitigating infringing AI outputs; Meta and CoreWeave extend their AI cloud partnership through 2032 with a new deal worth $21 billion; and more.

WIPO is Seeking a Patent Cooperation Treaty (PCT) External Consultant

WIPO is seeking a Patent Cooperation Treaty (PCT) External Consultant. WIPO aims to significantly expand the use of the PCT system compared to the Paris Convention in the United States of America. To achieve this, WIPO will engage an external contractor for a time-bound consultancy assignment to actively promote and drive the adoption of the PCT system within the user community.

Professors Push Back in Review of PTAB Rehearing Decision on ODP

Amicus briefs have now been posted to the U.S. Patent and Trademark Office (USPTO) site in Ex Parte Baurin, a 2025 rehearing decision of the Patent Trial and Appeal Board (PTAB) with respect to obviousness-type double patenting (ODP) that is being reviewed by an Appeals Review Panel (ARP). While most of the amici are arguing in favor of the Board’s analysis, one brief submitted by Professors Mark Lemley and Lisa Larrimore Oullette contends that U.S. Court of Appeals for the Federal Circuit (CAFC) precedent supports the examiner’s rejections and that Allergan’s holding is inapplicable here.

Your AI Is Saving You Time: So What?

I have spent most of my professional career talking to patent practitioners about AI. For years, the conversation was about whether AI could be trusted, whether it was ready, and whether it would actually change how patent work gets done. I have watched the profession move from skepticism to curiosity to cautious adoption to – in 2026, for the first time – something that feels like acceptance. Questions that once provoked heated debate at conferences now feel almost trite. Nobody is really questioning whether AI has a place in patent practice anymore. The question that has replaced it is harder and more consequential:

CAFC Affirms TTAB Finding of No Likelihood of Confusion Between Vape and Cigar Marks

The U.S. Court of Appeals for the Federal Circuit (CAFC) issued a precedential decision Wednesday in Fuente Marketing Ltd. v. Vaporous Technologies, LLC, affirming the decision of the Trademark Trial and Appeal Board (TTAB) and holding that the Board correctly dismissed an opposition to a trademark application after finding no likelihood of confusion between the applied-for mark and registered marks.

Arnold & Porter is Seeking a Senior Manager of IP Prosecution

Arnold & Porter is a leading international law firm with offices across the United States, Europe, and Asia. The firm delivers sophisticated regulatory, litigation, and transactional services to clients across a wide range of industries. Arnold & Porter is seeking a Senior Manager of IP Prosecution to join its Washington, DC office. This role provides firmwide leadership for the Intellectual Property Prosecution function, overseeing patent and trademark operations and ensuring the delivery of efficient, high-quality support to attorneys and clients.

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