Jason Rottner concentrates his practice on general business and complex commercial litigation, with a special focus on antitrust cases, class actions, contract disputes, product liability cases, and insurance disputes.

Jed I. Bergman's practice focuses on complex commercial litigation, with a particular emphasis on complex financial transactions and procedurally challenging disputes.

Jeff Dykes practice as a trial lawyer covers a wide range of cases, including energy, environmental, tort, contract, construction and antitrust matters. He has tried over seventy cases to jury verdict.

Jeff Gutkin is a partner in the Cooley Litigation department. He joined the Firm in 2000 and is resident in the San Francisco office. Mr. Gutkin's practice focuses on class action defense, internet privacy litigation, antitrust litigation.

Jeff LeVee's practice focuses on complex business and class action litigation, antitrust litigation, health care litigation, and antitrust counseling.

Jeffrey Ayer has a broad-based antitrust practice, including merger clearance, litigation in the federal district and appellate courts, civil non-merger investigations and antitrust counseling.

Jeffrey Lerner’s practice focuses on patent litigation. Mr. Lerner has broad experience representing clients before federal district courts, the International Trade Commission, and the U.S. Court of Appeals for the Federal Circuit.