Allen Kathir

Allen Kathir is an intellectual property litigation associate at Gibson, Dunn & Crutcher LLP, based in the firm's New York office. His practice encompasses a broad spectrum of technologies, including mobile telecommunications, medical devices, networking routers, and pharmaceuticals. With a background in electrical engineering, he applies his technical expertise to complex patent disputes.

Kathir primarily represents defendants, including major operating companies, in high-stakes patent infringement cases. His experience includes successfully defending clients against non-practicing entities (NPEs).

His notable representations include being part of the Gibson Dunn team that secured a rare directed verdict for Cisco Systems Inc. in a patent infringement trial where the plaintiff sought over $120 million in damages. He also contributed to a defense verdict for Cisco in a patent trial involving networking routers, which leveraged the rarely seen Section 273 "prior commercial use" defense. In Headwater Research LLC v. Verizon Communications Inc. et al., Kathir was part of the defense team that ultimately saw a $175 million jury verdict against Verizon set aside by the court before the case was reported to have settled. Additionally, he was involved in an appellate patent win for Sun Pharma at the U.S. Court of Appeals for the Federal Circuit, which vacated an injunction related to an alopecia drug.

While specific individual PTAB/IPR proceedings are not explicitly detailed in publicly available summaries of his work, his firm, Gibson Dunn, has a robust intellectual property practice that includes extensive experience in such post-grant proceedings, and Kathir himself clerked for Judge Todd M. Hughes of the U.S. Court of Appeals for the Federal Circuit, indicating significant exposure to appellate patent law. Kathir is admitted to practice in the District of Columbia, Florida, New York, and before the U.S. Court of Appeals for the Federal Circuit. He earned his J.D. from the University of Virginia School of Law in 2014 and holds a B.S. in Electrical Engineering from the University of Minnesota.