Allan B. Diamond

Summary of Patent Litigation Practice: Allan B. Diamond

Allan B. Diamond is a veteran trial lawyer and a founding partner of the litigation boutique Diamond McCarthy LLP. While his practice primarily focuses on complex commercial litigation, business insolvency, and corporate fraud, he also represents clients in intellectual property disputes. His work in IP is part of a broader practice that includes high-stakes financial, banking, and technology-related litigation. Mr. Diamond has been recognized by Super Lawyers for his work in business litigation, bankruptcy, and intellectual property litigation.

Based on the single tracked case, Mr. Diamond has represented a plaintiff in patent litigation. In NantWorks, LLC et al. v. Niantic, Inc., he appeared as of counsel for the plaintiff, which asserted patents related to augmented reality (AR) technology against the maker of the Pokémon Go mobile game. This representation aligns with his firm's description of handling sophisticated, "bet the company" disputes for plaintiffs and defendants, though it notes a particular strength in representing corporate plaintiffs. The NantWorks case ultimately resulted in a grant of summary judgment for the defendant, Niantic, with the district court finding the asserted patent claims invalid. This decision was affirmed by the U.S. Court of Appeals for the Federal Circuit in April 2026.

Mr. Diamond's career is more prominently defined by his role as lead counsel in major corporate fraud and bankruptcy cases, including serving as the court-appointed Chapter 11 Trustee for the law firm Howrey, LLP. The available records do not indicate a regular practice before the Patent Trial and Appeal Board (PTAB).

Admitted to the Texas bar in 1979, Mr. Diamond holds a J.D. from Emory University School of Law. He is also admitted to practice in New York and Georgia.