Feynman started his career in intellectual property in 2010. He has been working extensively with both domestic and international clients in prosecution, infringement litigation and portfolio management in a wide variety of fields including electrical engineering, computer software and hardware, sensors, microelectronics, and photoelectronics. In addition, he frequently counsels Chinese clients on enforcement of their IP rights and defending of themselves in jurisdictions such as the United States, Germany, France, Italy, and the Netherlands.