David L. Sipiora

An accomplished patent litigator, David L. Sipiora has built a long-standing practice focused on complex technology disputes. His work has covered a wide range of technical areas, including electronics, telecommunications, microprocessors, computer memory, databases, wireless communications, and software. Public records from his time in private practice show a balanced docket, representing both plaintiffs and defendants in high-stakes intellectual property cases.

Mr. Sipiora was a partner at Kilpatrick Townsend & Stockton for over twenty years, where he was also a member of its predecessor firm, Townsend, Townsend & Crew. During his tenure at Kilpatrick Townsend, he held significant leadership positions, including serving as Co-Chair of the Patent Litigation Group from 2011 to 2016, overseeing a team of approximately 80 lawyers. While the firm's website and other legal publications noted his retirement in April 2020, the provided authoritative case list shows him serving as lead plaintiff's counsel for DISH Technologies in a 2024 patent suit against fuboTV Inc.

Throughout his career, Mr. Sipiora has served as lead counsel in hundreds of patent cases across major patent venues in the U.S. One of his most notable outcomes was a landmark 2019 victory at the U.S. Court of Appeals for the Federal Circuit in Regents of the University of Minnesota v. LSI Corporation. Representing Broadcom subsidiaries LSI and Avago, he was part of the team that successfully argued that state sovereign immunity does not apply to Inter Partes Review (IPR) proceedings before the Patent Trial and Appeal Board (PTAB), a decision with broad implications for patent law. He has also represented plaintiffs, such as Avago Technologies, in district court litigation.

Mr. Sipiora earned his law degree from Harvard Law School and is a member of the bars of California, New York, D.C., and Colorado. Early in his career, he served as a law clerk in the U.S. District Court for the Northern District of California and as an Assistant U.S. Attorney for the Southern District of New York.