Mark Liang

Mark Liang is a partner with O’Melveny & Myers LLP. He focuses his legal practice on patent and technology-related litigation. He has experience in all stages of patent cases, including claim construction, fact and expert discovery, dispositive motions, trial, post-trial, and appeal. He represents clients in federal courts, the International Trade Commission, and United States Patent and Trademark Office, including reexaminations and inter partes review (IPR). He has litigated over seventy patent matters in district courts, five ITC investigations, and over forty IPRs. He has been on several successful trial teams, including in the Eastern District of Texas, Western District of Texas, District of Delaware, and the International Trade Commission, and has also served as lead counsel for clients in IPR proceedings. He has argued at dozens of hearings on claim construction and dispositive motions, and also taken/defended several dozen depositions, including of expert witnesses, inventors, and corporate fact witnesses. He has also briefed appeals at the Federal Circuit.