John Majoras has more than 25 years of experience in general commercial litigation, with a particular focus on antitrust matters. He frequently represents clients facing governmental and criminal investigations, including the follow-on civil damages claims. Often, the investigations are global, and John coordinates responses to investigating agencies around the world. He recently has defended significant civil antitrust challenges, including multidistrict class actions, in the pharmaceutical, credit card, paper, packaged ice, marine hose, satellite radio, auto parts, and waste hauling industries. In addition to his antitrust experience, John has handled business disputes concerning product liability, hostile corporate takeovers, copyright, tax, contract, and entertainment law. John advises clients on antitrust and FDA regulatory issues, particularly in patent and pharmaceutical matters, and coordinates Jones Day's competition law litigation practice worldwide.

John's antitrust representations range from initial governmental or internal investigation through related civil claims. He acted as lead counsel for sanofi-aventis, S.A., one of the principal defendants in worldwide investigations and litigation concerning synthetic vitamins. This representation included responding to investigations by the U.S. Justice Department and enforcement agencies in Europe, Canada, Australia, Mexico, New Zealand, and Brazil. John also led the defense of more than 200 state and federal cases and represented sanofi-aventis before the U.S. Supreme Court in the Empagran case.

John is in the ABA's Antitrust and Litigation Sections and is a frequent speaker at antitrust and litigation conferences. He is active in pro bono matters related to unfair housing practices and is involved in trial skills training at Jones Day.