
Josepher Li
Partner
Josepher’s practice includes IP litigation, appeals, and critical motions in disputes involving patents, trade secrets, and copyrights. Based in our Newport Beach, California office, Josepher litigates nationally in federal courts and before the U.S. Patent Office.
His federal court litigation practice spans coast-to-coast and has included cases in the Central District of California, District of Delaware, District of New Jersey, Eastern District of Texas, Northern District of Texas, Southern District of Florida, and Western District of Washington.
At the Patent Office, he has successfully represented clients in inter partes review and ex parte reexamination proceedings.
Benchmark Litigation selected Josepher for its “40 & Under” list of the best and brightest litigators in the country. He’s been repeatedly recognized as a Southern California “Rising Star” by Thomson Reuters Super Lawyers® and by Best Lawyers® on its “Ones to Watch” list for his IP litigation work.
Previously, his practice included strategic patent procurement, including prosecuting patent applications through allowance before the U.S. Patent Office and managing patent portfolios. Josepher leverages his background as a registered patent attorney to guide clients through complex patent matters both in and outside of court.
Josepher writes and speaks frequently on IP issues and on issues relating to the practice of law. His written work has appeared in Law360, Bloomberg Law, The Recorder, and the Daily Journal.
Josepher was previously a litigator at Knobbe Martens Olson & Bear LLP. He received his engineering degree from the Massachusetts Institute of Technology. During law school, he served as an editor of I/S: A Journal of Law and Policy for the Information Society.
Education
J.D., cum laude, The Ohio State University Moritz College of Law
S.B., aerospace engineering, Massachusetts Institute of Technology
Awards
“40 & Under” List, Benchmark Litigation (2024)
Southern California “Rising Star” in intellectual property litigation, Thomson Reuters Super Lawyers (2023-2025)
“Ones to Watch” in intellectual property litigation, Best Lawyers (2023-2025)
Representative Cases
Externship
Judicial extern to the Honorable Algenon L. Marbley, U.S. District Court for the Southern District of Ohio (Spring 2016)
Media, Speaking Engagements and Publications
Professional Affiliations
President-Elect, Board of Directors, MIT Club of Southern California
Association of Business Trial Lawyers (ABTL), Orange County Chapter
Admissions
U.S. Supreme Court
U.S. Court of Appeals for the Federal Circuit
U.S. District Court for the Central District of California
U.S. District Court for the Northern District of California
U.S. Patent Office
State of California