Before joining Bairui, Mr. Qian worked as a patent engineer in a well-known energy company in Shenzhen, specializing in patent searching and reviewing patent cases. Since joining Bairui, Mr. Qian specializes in patent applications in photoelectric, including patent search, response to office actions, patent re-examination and invalidation, etc. He is experienced in dealing with complicated patent cases and is able to provide practical advice on patent issues.