James Heintz focuses on patent litigation and prosecution with an emphasis on electrical and computer technologies, including encryption technologies, conditional access television systems, computer operating system software, electronic train control and signaling systems, optical sensors, integrated circuits and semiconductors.

James has represented clients in patent litigation in the US involving a wide variety of technologies. Among them are satellite television systems, video processing, online computer gaming, telecommunications testing equipment and power tools. He also counsels clients regarding patentability, validity and infringement issues.