John L. Hemmer

John serves as the co-leader of the firm’s technology IP non-disputes practice, co-leader of the firm’s aerospace and defense industry team, and deputy leader of the Philadelphia IP practice.

With a background in mechanical engineering, John helps clients secure and maximize the value of both utility and design patents across a broad range of technologies. His experience includes medical devices such as orthopedic implants, drug delivery systems, and surgical instruments; biotech manufacturing equipment; military helmets and tactical gear; industrial safety barriers; consumer products and packaging; sporting goods and athletic apparel; home security systems; smart speakers and displays; plumbing fixtures; cleantech technologies; automotive mechanisms; electromechanical devices; pet accessories; and mobility scooters and wheelchairs. Clients turn to John for his experience in design patents, particularly in protecting visually distinctive industrial designs and user interfaces.

Beyond his practice, John is active in community affairs. He volunteers for Neighborhood Bike Works, a nonprofit empowering youth in underserved Philadelphia neighborhoods through cycling; CRC Watersheds, dedicated to preserving the natural environment of the Chester, Ridley, and Crum Creek Valleys; and the Penn State Scholar Alumni Society, where he mentors students and connects alumni and students of the Schreyer Honors College.