Joseph S. Leventhal

Law School
Georgetown University Law Center

Major Cases
Leventhal achieved two significant victories against a patent troll in what the Los Angeles Times called “one of the most closely watched patent cases in the technology world” -- an atypical early win and an important attorney fee victory. He achieved jury trial victory for DeepSea Power & Light validating our client’s claims that the defendants illegally used the client’s confidential and proprietary engineering designs. Leventhal also achieved a favorable ruling against UCSD, in which the court ruled that the university’s machine shop documents are not trade secrets and should have been produced to our client in response to a California Public Records Act request.

Professional Background
Leventhal has represented clients from Fortune 250 companies to individuals at the highest levels of corporate America and the U.S. government. He founded Leventhal Law in 2012 to achieve successful legal outcomes consistent with his clients’ business goals.

Prior to Leventhal Law, he was an attorney at two American Lawyer 100 firms – Kirkland & Ellis LLP and Cooley LLP. His practice spanned all areas of business litigation, including class action defense, patent litigation, complex contract matters, and white collar defense.

Leventhal previously worked as an attorney in the White House, serving as Deputy Assistant to the Vice President.

Professional Affiliations

President of the Federal Bar Association’s San Diego Chapter
Vice president of the Ninth Circuit for the FBA
Co-chairmain of the Lawyer Representatives to the Southern District of California
Past member of the FBA’s national Government Relations Committee, advocating for the appointment of Article III judges among other issues affecting federal courts.

Past member of the UC San Diego Alumni Association’s Board of Directors.
Member of the American Bar Association, ABA’s Forum Committee on Communications Law, and San Diego County Bar Association.

Personal Background
Leventhal and his wife, Erin, have three small children: Grace (7), Laurel (6) and Jake (4).