Patrick Brennan is a member of the firm’s Intellectual Property practice group, where he counsels clients ranging from Fortune 500 companies to universities and emerging startups. With more than 20 years of experience, Patrick helps clients strategically develop, protect and enforce their innovations through every stage of the patent life cycle.

Patrick regularly collaborates with in-house counsel, engineering and design teams to guide clients through U.S. and international patent preparation, prosecution and enforcement—most often in the mechanical and electromechanical arts. His experience spans a wide range of technologies, including personal care products, absorbent products, baby care and nursing products, recreational and consumer goods, processing and manufacturing equipment, pest control devices and medical devices.

A significant portion of Patrick’s practice focuses on freedom-to-operate, clearance and right-to-use analyses, where he provides detailed risk assessments and actionable recommendations to help clients navigate competitive landscapes and avoid infringement.

Patrick is registered to practice before the U.S. Patent and Trademark Office (USPTO) and represents clients in post-grant proceedings. Patrick has also successfully defended clients’ patents before the U.S. Court of Appeals for the Federal Circuit.

Patrick is proud to represent several prestigious universities across the country, working closely with their research teams across scientific and engineering disciplines to protect breakthrough innovations and emerging technologies.