Experience: Jeffrey focuses his practice in all aspects of intellectual property, from prosecution and litigation to domestic and international licensing. Jeffrey has been recognized by California Lawyer as one of the 20 best intellectual property lawyers in the state. Prior to joining Cislo & Thomas, Jeffrey was the founding partner of Sheldon Mak & Anderson. Jeffrey’s leadership in intellectual property professional organizations has established him at the pinnacle of his professional specialty. Jeffrey regularly lectures on intellectual property law, serves as an expert witness, mediator (on the Central District of California panel), and is the author of the foremost treatise on how to write patent applications, “How to Write A Patent Application,” first published in 1992 by the Practicing Law Institute. The treatise is used in law schools and by aspiring patent attorneys throughout the world. He has taught intellectual property law courses at multiple law schools, and currently teaches a ten week on-line course for the Practicing Law Institute training students to be a practicing patent attorney or agent. He is also the author of the Manager’s Guide to Intellectual property (contact him for a free copy).
His leadership positions include Chairman of the State Bar of California Intellectual Property Law section, President of the Los Angeles Intellectual Property Law Association, and Committee Chairman for the American Intellectual Property Law Association and IP section of the ABA.
Jeffrey’s peers have selected him as a “Best Lawyer” for many years, and achieved the distinction of being named the “Best of the Best” in Southern California for both patent and trademark law. Jeffrey was recently awarded 2019, 2020, 2021, 2022, 2023, and 2024’s Best Lawyers Award in The Best Lawyers of America for IP Litigation, Patent Litigation, Patent Law, and Trademark Law.
Jeffrey is regularly retained by in-house counsel of large corporations, start-ups, and individual inventors because of his command of intellectual property law. He is skilled at achieving clients’ objectives through the most effective and efficient means. He was previously employed as a chemical engineer by Exxon and then Shell Chemical. Prior to that, Jeffrey was a scientific coordinator at Lee Pharmaceuticals and a medical device development engineer at American Hospital Supply Corporation.
Education: J.D., magna cum laude, Loyola Law School
M.Sc. in Biomedical Engineering, Marshall Scholar, University of Strathclyde
B.S. in Chemical Engineering, Carnegie Mellon University
Admissions:
U.S. Supreme Court
U.S. Patent & Trademark Office
U.S. Court of Appeals, Federal Circuit
U.S. Court of Appeals, Ninth Circuit
U.S. District Court, Northern District of California
U.S. District Court, Central District of California
U.S. District Court, Southern District of California
California
District of Columbia
Contact: jsheldon@cislo.com
