I. November 2005-September 2023, Chief Intellectual Property Engineer, Legal Department, Huawei Technologies Co., Ltd (Base: Shenzhen of China)1. Basic intellectual property work: Responsible for writing SEP patent applications (mainly telecommunications fields) for filing with China, Europe and the United States, and making corresponding OA responses.2. Patent invalidation and opposition: I have been independently responsible for SEP patent negotiations with a number of domestic and international companies (including Ericsson, ZTE, etc.), and conducted domestic invalidation and European opposition against their SEP litigation patents.3. Patent negotiation and licensing: Responsible for licensing negotiations with Lenovo, Ericsson, Microsoft and other Chinese and American companies on the spot.4. Litigation in the United States and Europe: Responsible for responding to multiple U.S. patent cases filed by U.S. NPEs, and also responsible for our company’s voluntary lawsuits such as Huawei v. Verizon, Huawei v. T-Mobile, Huawei v. ZTE, etc.