Mr. Weinberger's practice consists principally of antitrust and intellectual property litigation in trial and appellate courts. He has been lead counsel in a number of landmark private and government antitrust cases and patent cases. He has extensive court and jury trial experience, having tried antitrust, patent and other complex business cases for both corporate defendants and corporate plaintiffs in state and federal courts. In addition, he has argued numerous appeals before the Ninth Circuit Court of Appeals, the Court of Appeals for the Federal Circuit, and other federal appellate courts. Mr. Weinberger argued before the U.S. Supreme Court on behalf of respondents in a closely watched case at the intersection of antitrust and patent law regarding pharmaceutical patent settlements.
Mr. Weinberger is a past Chair of the Section of Antitrust and Unfair Competition Law, State Bar of California, and a past President of the Association of Business Trial Lawyers of Southern California. He has served as Program Chair for the State Bar Antitrust and Unfair Competition Section's annual Golden State Antitrust Institute, and the Association of Business Trial Lawyer's Annual Seminar. He has lectured on numerous panels, including CEB's annual Federal Practice Institute, the ABTL's Judicial College, the Golden State Institute Antitrust Seminar, the Conference Board Annual Antitrust Seminar, and the California State Court Appellate Judge's Conference, and the USC Intellectual Property Law Institute.
Mr. Weinberger has repeatedly been recognized by The Best Lawyers in America for his work in Bet-the-Company Litigation and Commercial Litigation, most recently in its 2020 edition. He is named in the 2015-2019 edition of Benchmark Litigation as a Litigation Star in California in the areas of antitrust and intellectual property. LMG Life Sciences consistently ranks Mr. Weinberger as a Life Science Star in antitrust including in 2019. Additionally, Mr. Weinberger was recognized in 2016 by the National Law Journal as an “Antitrust Trailblazer” and beginning in 2011 for a number years, as a BTI Client Service All Star for outstanding client service, outstanding results and legal skills. Mr. Weinberger has been ranked repeatedly as a leading antitrust litigator by Chambers USA.