Field of Practice

Mr. SUN Binyan has accumulated rich working experience in providing legal counseling, dispute resolution, enterprise legal risk control and legal management, enterprise intellectual property rights and unfair competition internal control management and other services for various Internet head companies for a long time.

Mr. SUN Binyan has always been committed to the research and practice of expanding legal issues in the frontier areas of the Internet industry, and his team has represented more than 200 intellectual property cases since its establishment three years ago. The case of removing watermarks from short videos on behalf of Kuaishou, as the first case of unfair competition dispute over removing watermarks from short videos in China, was selected as one of the "Top Ten Influential Cases of China's New Culture and Entertainment in 2021" organized by the Shanghai Intellectual Property Association. The case of Kuaishou v. a network technology company limited in Suzhou was awarded as a typical case of black and grey infringement by Beijing Haidian Court, which is of pioneering significance in the characterization of such infringement.

Mr. SUN Binyan has provided legal services to lots of clients, including but not limited to Kuaishou, Baidu Takeout, Blue Focus, TOREAD, Fancy Guo Technology, Gravity Entertainment Group, Seven Doors, Boya Investment, Shangzheng Technology.


Work Experience

Mr. SUN Binyan has successively worked in ECS ELITEGROUP Co., Ltd., Beijing Wensi Law Firm, Beijing Yijia Law Firm, and Baidu Takeout, and now works as the founding partner in Beijing HYSOME Law Firm. 

Representative Cases
  • Dispute of trademark infringement and unfair competition of Beijing Kuaishou Technology Co. Ltd. and Beijing Dajia Internet Information Technology Co. Ltd. v. a culture media company limited in Shenzhen and a technology company limited in Shenzhen;

  • Dispute of unfair competition of Beijing Kuaishou Technology Co. Ltd. v. a technology company limited in Chongqing and a culture communication company limited in Chongqing;

  • Dispute of unfair competition between Beijing Kuaishou Technology Co. Ltd. and a technology company limited in Chongqing;

  • Dispute over confirmation of invalidity of contract of Ai v. He , Xu, and Beijing Kuaishou Technology Co. Ltd. ;

  • Dispute of sale and purchase contract between a company in Shanghai and Beijing Dajia Interconnection Information Technology Co., Ltd.;

  • Dispute of  construction contract between Beijing Chuangge Building Decoration Engineering Co., Ltd. and a children's amusement park company limited in Beijing involving a subject matter of more than RMB 18 million Yuan;

  • Dispute of copyright infringement of Beijing Fancy Guo Technology Co.,Ltd. v. a network technology company limited in Wuhan acting for Fancy Guo, which was awarded over RMB 800,000 Yuan.

Filed of Expertise

Intellectual property rights

Unfair competition disputes

Civil disputes

Commercial disputes, etc.

Office Address

Beijing Office

Working Language

Chinese and English