Eric Chang is a veteran expert on intellectual property matters, business areas covering patent applications, patent invalid, litigation, patent litigation and patent administrative warning analysis of patent infringement. Eric Chang has a degree in Electronic Engineering, Tsinghua University, and in the State Intellectual Property Office as a patent examiner for many years. He has a Chinese patent agent qualification for the China National Agents Association. Adding Rouse before he has in two well-known intellectual property agency practice. Eric Chang solid technical background and rich experience, has a number of well-known multinational companies to provide services.