Kangda Law Firm

Civil and Commercial Dispute Resolution | Criminal Legal Services | Intellectual Property

Partner

Mr. Chang Yachun has over 10 years of professional experience and has successively served as legal counsel to multiple technology innovation companies. He specialises in intellectual property and civil and commercial litigation, and has obtained practice qualification certificates in multiple fields including patent agency, securities, and computer networking, with particular expertise in the intellectual property field.

Chinese (Mandarin), English

• Member of the China Democratic League

• Member of the All-China Patent Attorneys Association

• Member of the People's Mediation Committee of the Beijing Chaoyang Film and Television Industry

• Master of Engineering, Beijing Research Institute of Mechanical and Electrical Engineering, Ministry of Machinery Industry

• Bachelor of Engineering, Harbin Institute of Technology

Representative Cases:

Infringement dispute over the classic children's song "The Little Girl Picking Mushrooms"; copyright contract dispute over the TV drama Shanghai Storm; multiple copyright infringement disputes for Xiaomi Technology Co., Ltd.; administrative dispute over trademark rights between Shanghai "Pengbo" and US "Bloomberg"; dispute over corporate name rights, trademark rights, and anti-unfair competition for "Zhong Anbao"; computer software trade secret infringement dispute between Mr. Cui and IMAX Corporation (Canada); patent ownership dispute over "grid bricks" for blast furnace hot blast stoves with Russian Kalugin Company; computer software development contract dispute for Neusoft Group; as well as multiple patent infringement and patent validation dispute cases.