Mr. Haiwen ZHANG is a patent attorney, engineer, and vice general manager of Jiaquan IP Law.

Mr. Zhang once worked as an environmental engineer in a company, joined Jiaquan IP Law in 2002, and is now the vice general manager of Jiaquan IP Law. In 2016, he was named "One-Star Patent Attorney".

He has been engaged in the patent agency for nearly 20 years, acting as an attorney for nearly 2,000 patent application cases, nearly 50 patent litigation and invalidation cases, and has represented a number of well-known enterprises in intellectual property cases. He is an expert in patent application, strategy formulation, infringement analysis and other intellectual property protection and transformation work in the fields of machinery and environmental engineering.