In an increasingly predatory intellectual property environment, O’Melveny works closely with clients, providing practical, results-oriented advice customized to meet their business goals. We counsel on the acquisition, exploitation, enforcement, and defense of intellectual property rights worldwide, with lawyers who have broad industry experience and specialized academic backgrounds, including advanced technical and scientific degrees.

Whether defending a bet-the-company patent infringement case in Texas, or negotiating a cross-border technology acquisition agreement in Asia, we provide comprehensive legal services to assist clients as they confront complex patent, trade secret, copyright, trademark, and technology law issues.

Allergan, Inc.

O’Melveny prevailed at trial on behalf of Allergan in a trade secrets case, securing a rare “head start” injunction. Read


We successfully defended Broadcom against allegations that it infringes four patents owned by American Radio LLC involving reconstruction of radio frequency signals. Read

Mentor Graphics Corporation

O’Melveny secured another victory for Mentor Graphics Corp., a maker of electronic design automation software and hardware, when a Federal Circuit panel affirmed a US$36 million verdict and a permanent injunction against Synopsys Inc. in a long-running patent dispute.


Quiksilver, Inc.

O’Melveny prevailed at trial for clients Quiksilver and QS Wholesale, Inc. (Quiksilver), in a trademark case filed against volleyball uniform maker Rox Volleyball Inc. Read


We prevailed for Samsung Electro-Mechanics, Co. Ltd. in an important patent infringement trial before the International Trade Commission.



O’Melveny achieved a jury victory for Semtech subsidiary Triune Systems in trade secret litigation in Texas state court. Triune was the plaintiff in the complicated case, which covered more than 70 asserted trade secrets. Read

SK hynix Inc.

O’Melveny helped SK hynix Inc. (formerly Hynix Semiconductor) obtain a favorable settlement in long-running patent and antitrust litigation with Rambus, Inc. The 13-year dispute involved litigation on two continents, in multiple trial courts, multiple appellate proceedings and litigation before multiple agencies. Read

Top Victory Electronics

O’Melveny obtained a major jury trial victory in April 2013, prevailing on every issue at stake for long standing client Top Victory Electronics (Taiwan) Co., Ltd. (TPV) in a patent infringement dispute against Hitachi Consumer Electronics Co. Read

Twentieth Century Fox Television

When Twentieth Century Fox faced a multi-million-dollar demand over the use of “Empire” as the title for its hit drama television series, it turned to O’Melveny to protect the use of the name and fight alleged trademark violations. Read

Warner Bros. Entertainment Inc.

O’Melveny helped Warner Bros. Entertainment Inc. and its subsidiary DC Comics resolve a long running dispute over copyrights to the Superman character. Read