Ryan (Liangrui) Xu

Ryan is a partner at Chang Tsi & Partners, specialising in patent litigation, invalidation, and administrative lawsuits across chemical materials, biopharmaceuticals, and machinery. With over 13 years of experience, he has held roles at the CNIPA, King & Wood Mallesons, and Bird & Bird’s Beijing office.

Ryan has represented leading multinational corporations in complex patent disputes before Chinese courts and the Supreme People’s Court, achieving landmark victories in cross-border technology transfer and licensing matters.