Brian A. Sun

Brian A. Sun is a seasoned trial lawyer at Norton Rose Fulbright US LLP, where his practice includes complex business litigation, white-collar criminal defense, and intellectual property disputes. His patent litigation experience, as indicated by tracked cases, primarily involves defending operating companies. He has represented defendants such as AT&T Inc. in patent infringement actions, including the case SPADA Innovations, Inc. v. AT&T Inc., which has involved technology in the software and security sector.

Mr. Sun consistently represents defendants, aligning with his broader practice of advising Global Fortune 500 institutions and high-profile individuals embroiled in high-stakes litigation. He serves as a partner in the Los Angeles office of Norton Rose Fulbright. Prior to joining Norton Rose Fulbright, he began his legal career at Adams, Duque & Hazeltine and also served as an Assistant United States Attorney for the Central District of California, where he rose to Chief of the Financial Investigations Unit.

While his professional background highlights extensive experience in high-profile criminal trials and complex civil litigation, public records do not indicate regular appearances or notable outcomes specifically in Inter Partes Review (IPR) or other PTAB proceedings within his patent litigation practice.

Mr. Sun earned both his B.A. in International Relations (1976) and J.D. (1979) from the University of Southern California and was admitted to the State Bar of California in 1979.