Shannon Vittengl is Counsel at Pierce Atwood's Portsmouth office. She focuses her practice on patent law including patent prosecution, freedom-to-operate studies, patentability opinions, client counseling, and foreign portfolio management. Her areas of technical expertise include mechanical devices, medical devices, consumer products and athletic products.

Shannon has counseled consumer product companies regarding U.S. and foreign utility and design patent filing strategies, advised a student-originated start-up company on various patent matters, and assisted numerous athletic companies in developing new products in crowded patent areas.