James Isbester has been advising and representing clients in intellectual property and technology-related matters since 1987. Although his clients span the business world, most of his work is on behalf of high technology and medical device companies.

Mr. Isbester has represented both plaintiffs and defendants in jury trials, bench trials, various state and federal courts of appeal, and arbitrations. As a member of the Northern District of California's panel of court-appointed mediators, Mr. Isbester has conducted mediations in more than three dozen patent, trademark, copyright and trade secret disputes. In addition to his work in the courts, Mr. Isbester is active in advising clients in mergers, acquisitions, new product introductions, and initial public offerings. Mr. Isbester frequently assists his clients avoid litigation through effective licensing efforts on behalf of both the IP owner and the licensee.

Mr. Isbester was recognized as a Northern California "Super Lawyer" in 2011 and 2012 for Intellectual Property Litigation and in 2013 and 2014 for Intellectual Property by Super Lawyers magazine and he is AV® rated by Martindale-Hubbell.*

*CV, BV, and AV are registered certification marks of Reed Elsevier Properties Inc., used in accordance with the Martindale-Hubbell certification procedure's standards and policies.

Professional & Community Activities

American Bar Association, Member

Litigation Counsel of America, Member

Editorial Advisory Board, MX Update, Member

Advisory Council, IP Osgoode, Member


  • Osgoode Hall Law School, LL.B. (1987)
  • University of California, Davis School of Law (1987)
  • Princeton University, B.S.E., Chemical Engineering (1983)

Bar Admissions

  • California
  • District of Columbia
  • Washington


  • U.S. Patent and Trademark Office
  • U.S. Court of Appeals for the Ninth Circuit
  • U.S. Court of Appeals for the Federal Circuit
  • U.S. District Court for the Eastern District of Texas
  • U.S. District Court for the Western District of Michigan
  • U.S. District Courts for all Districts of California

Who We Are

Eighth Floor, Two Embarcadero Center
San Francisco, CA, 94111
t +1 415.273.4335
f +1 415.576.0300
Suite 400, 12730 High Bluff Drive
San Diego, CA, 92130
t +1 858.350.6254

A. James Isbester

Experience Highlights

Molecular Probes v. Texas Fluorescence Laboratories

Lead counsel for plaintiff in patent infringement case involving fluorinated xanthene fluorophores. After district court accepted our client’s more

TecSec Inc. v. Oracle Corporation, et al.
Represents Oracle Corporation and Oracle America, Inc. in a patent infringement litigation in the Eastern District of Virginia. The plaintiff more
Surety v. Entrust

Co-counsel for defendant Canadian data security company accused of infringing patent relating to encryption techniques used in creating verifiable more

Video Enhancement Solutions v. Epson America
Represented Epson America Inc. as defendant in a patent infringement case related to the reduction of blocking artifacts in video displays. Succeeded more