"Among the local firms in China, I am most impressed with Shanghai Patent and Trademark Law Office," says a foreign client. "Jiang Zhenglong has impressed me very much with his professionalism and his knowledge of China." The firm moves up the trade mark prosecution ranking this year on the back of positive market feedback. It is also a trusted firm to many for patent prosecution matters, especially in the areas of biotechnology, telecommunications and computer software. The firm benefits from having a relatively long history and counts many leading foreign corporations as clients. Many high-technology companies in Shanghai and along the Yangtze River seek assistance from the team to protect their IP.