Sorin Zaharia


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Sorin Zaharia is a litigation counsel in O’Melveny’s San Francisco office who focuses his practice on intellectual property litigation. Dr. Zaharia has represented clients on matters spanning a broad range of technologies, including digital cameras, graphical user interfaces, image and video processing, cloud computing, semiconductor microlithography, electronic circuits, light-emitting diodes, medical robotics, and pharmaceuticals.

Dr. Zaharia has worked on all aspects of patent litigation, from fact and expert discovery to claim construction, Daubert, and case-dispositive motions. He was on the trial teams in three patent litigation matters in federal district court and also participated in Section 337 ITC investigations. Dr. Zaharia has worked extensively with technical experts, has taken and defended depositions of fact and expert witnesses, argued at a claim construction hearing, and prepared witnesses for trial. As a USPTO-registered attorney, he is also familiar with PTAB post-grant practice and has challenged patents in several IPR petitions.



Bar Admissions

  • California

Court Admissions

  • US District Court, Central and Northern Districts of California
  • US Court of Appeals, Ninth Circuit

Registered to Practice

  • US Patent & Trademark Office


  • University of California at Berkeley School of Law, J.D.: Senior Annual Review Editor, Berkeley Technology Law Journal
  • Princeton University, Ph.D., Astrophysical Sciences/Plasma Physics
  • University of Bucharest, B.Sc., Physics

Professional Activities


  • American Bar Association


  • Author, Burden of Proof in Medtronic: The Federal Circuit’s Idiosyncratic Patent Jurisprudence Vetoed, Again, 30 Berkeley Tech. L.J. 777 (2015)
  • Represented global manufacturer in Section 337 investigations relating to semiconductor microlithography and digital camera patents (ITC)
  • Defended major digital camera manufacturer in two patent litigation cases involving graphical user interfaces, image and video capture, and face detection (C.D. Cal.); juries returned non-infringement verdicts in both cases, and also invalidated one of the patents
  • Represented industry-leading virtualization and cloud computing company in patent litigation relating to virtualization (D. Del.)
  • Represented pioneering medical company in patent litigation involving medical robotics (D. Del.)
  • Defended start-up electronics company in patent litigation related to ultra-violet LEDs (N.D. Cal.); case settled on terms favorable to client