Josh M. Masur

Josh Masur is a Partner in the Litigation Group at Jeffer Mangels & Mitchell LLP.

Josh represents established and emerging technology-focused companies and other businesses in intellectual property and business disputes. His practice focuses on patent, trademark, copyright, trade secret, and licensing litigation, as well as other complex commercial disputes. He has represented clients in federal and state courts across the country, before the International Trade Commission, and in arbitration and mediation proceedings.

Josh combines deep technical knowledge with practical business judgment. Clients rely on him to navigate complex technologies and legal issues while keeping their broader business objectives in focus. His experience spans a wide range of technologies, including computer networking, online marketplaces and other online services, cannabis, streaming video, biometric and mobile device authentication, encryption, prisoner restraints, automotive pollution controls, and digital media. He works closely with clients to develop litigation strategies that are both effective and aligned with clients’ long-term business and legal goals. 

In addition to his litigation practice, Josh is a skilled mediator, and serves as a court-appointed neutral for the Northern and Eastern Districts of California. He is a recognized leader in the intellectual property community, having served as President of the San Francisco Bay Area Intellectual Property American Inn of Court and in leadership roles with both the American Intellectual Property Law Association and the American Bar Association Section of Intellectual Property Law; he is currently a chair of both organizations’ subcommittees on patent litigation policy, and serves as vice chair of the ABA’s Trademark Litigation Committee.

Before entering the legal profession, Josh worked as a computer and networking consultant and as a graphic designer. His background continues to inform his ability to understand sophisticated technologies and the business contexts in which they arise.  He takes particular pride in his ability to communicate complex technical concepts to courts and juries, and complex legal concepts to inventors, engineers, and business stakeholders. 

Away from the office, Josh enjoys skiing, cooking, and baking. He serves as the Legal Advisor to the Far West Division of the National Ski Patrol, and previously served as its National Legal Advisor (outside general counsel) and Treasurer, and was an elected member of its Board of Directors.