John P Mancini

Practice Areas

John Mancini is a partner in Mayer Brown’s New York office and a member of the global Intellectual Property practice, which was named IP Practice Group of the Year for 2017 and 2020 by Law360. John has served in various firm management roles, including, current global co-chair of the Technology Industry Group, prior tenure as global co-chair of the Intellectual Property practice, and as past member of the firm’s Global Partnership Board. John's practice focuses on litigating copyright, trademark, trade dress, trade secret and patent disputes in courts across the country, as well as before the Copyright Royalty Board (CRB), the United States International Trade Commission (ITC), the United States Patent and Trademark Office (USPTO) and the USPTO Trademark Trial & Appeal Board (TTAB). John has successfully tried numerous complex intellectual property cases to successful bench and jury verdicts, all as lead counsel. In his practice, John has represented both public and private companies in a wide range of industries, with a particular concentration on the representation of technology, media and telecom companies, such as Google, YouTube, LG, Spotify and AT&T.