Scheef & Stone, L.L.P. has extensive experience in preparing, filing and prosecuting utility and design patent applications before the U.S. Patent and Trademark Office as well as foreign patent offices. This representation includes reexaminations, reissues, and contested proceedings before the Office. Each of Scheef & Stone, L.L.P.’s patent attorneys has one or more engineering degrees, an average of over 14 years of experience, is registered to practice before the U.S. Patent and Trademark Office, and more than half of Scheef & Stone, L.L.P.’s patent attorneys are also Registered Professional Engineers. This technical expertise allows Scheef & Stone, L.L.P. to work in a broad variety of technologies, including, by way of example, electrical and mechanical technologies, oil and gas exploration and production technologies, software, business methods, telecommunications, and robotics. Scheef & Stone, L.L.P. also has broad experience preparing legal opinions such as relating to infringement and invalidity of patents, and right-to-use opinions.