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PTAB Trials

Sterne Kessler has one of the most experienced PTAB litigation teams in the country, representing petitioners and patent owners across all technologies.

Sterne Kessler's PTAB Trials team has emerged as a dominant force, representing both petitioners and patent owners in a wide range of the USPTO's technology centers — biotech and chemical, electrical, and mechanical. With over 1,200 proceedings and counting, our results continue to be among the very best.

Sterne Kessler is deeply experienced in all proceedings at the Patent Trial and Appeal Board (PTAB) — inter partes reviews (IPRs), covered business method reviews (CBMs), post grant reviews (PGRs) and derivation proceedings (DERs). We have also handled 400+ reexams on behalf of both patent owners and third party requesters.

Our clients rely on the legal and technical expertise of our multi-disciplinary teams to succeed in PTAB Trials. Our work prosecuting strong, defensible patents informs our work as PTAB litigators.

We also provide strategic guidance on utilizing PTAB Trials as a part of global IP rights enforcement efforts.

In 2023, Sterne Kessler was named Post-Grant Firm of the Year for the United States at the 2023 Global IP Awards by leading intellectual property publications Intellectual Asset Management and World Trademark Review. The firm was also named PTAB Firm of the Year three times by Managing Intellectual Property magazine in 2020, 2017, and 2015.

In addition to practicing at the PTAB, Sterne Kessler remains the thought leader on post-grant proceedings — IPRs, CBMs, PGRs, derivation proceedings and reexams. Sterne Kessler has annually published the PTAB Year in Review: Analysis & Trends report since 2019, which explores the power, resilience, and ever-evolving nature of the U.S. Patent and Trademark Office's Patent Trial and Appeal Board through a series of articles addressing the most significant decisions, updates, and rule changes in 2019. In February 2017, the firm published Patent Office Litigation, Second Edition, providing a fresh and comprehensive exploration of all aspects of the contested patent proceedings before the PTAB.

We also wrote the PTAB Chapter of the ABA/BNA Patent Litigation Strategies Handbook, 4th Edition, 2015 Cumulative Supplement — "Patentability Challenges at the U.S. Patent and Trademark Office."

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