Patent & Trademark Law

Donald J. Perreault

Partner

Donald J. Perreault has over 30 years of experience helping clients protect and leverage complex technologies and brands to support long-term business and competitive objectives through strategic U.S. and international intellectual property protection.

His practice spans a wide range of technologies, including optical communications, computer hardware and interfaces, software systems, control systems, Internet and business methods, semiconductor manufacturing, electric motor technologies, and complex mechanical and electromechanical systems. He also advises clients on trademark selection, clearance, prosecution, and broader brand protection strategies.

Don has counseled clients ranging from Fortune 100 companies to independent inventors, preparing and prosecuting hundreds of U.S. and foreign patent applications. He regularly provides infringement, invalidity, and freedom-to-operate opinions and negotiates and structures patent and technology license agreements. His experience also includes patent, trademark, and copyright litigation, and serving as lead counsel in patent interference and other contested USPTO proceedings.

Prior to entering the legal profession, Don worked in Raytheon Company’s Communication Systems Division, where he designed and implemented electrical and software interfaces for communication systems used by the U.S. Armed Forces. He earned his B.S. in Electrical Engineering, with a concentration in communications technologies, from the University of New Hampshire, and his J.D. from Franklin Pierce Law Center (now the University of New Hampshire School of Law), widely recognized for its intellectual property program. He is admitted to practice in Massachusetts and New Hampshire, before the U.S. Patent and Trademark Office, and in the federal district courts of Massachusetts and New Hampshire.

Don is a New Hampshire resident and volunteers as a wish granter with the Make-A-Wish Foundation.