Recently, the Third Civil Division of the Supreme People's Court rendered the final civil judgment (2023) Zui Gao Fa Zhi Min Zhong No. 1598 in the case of Denka Company Limited v. Chongqing A Biotechnology Co., Ltd. and Beijing A Medical Technology Co., Ltd. concerning infringement of invention patent rights. The Court dismissed the appeal filed by Chongqing A Biotechnology Co., Ltd., affirmed the first-instance judgment, and held that the two defendants constituted infringement and shall be liable to the plaintiff Denka Company Limited.

Previously, the Intellectual Property Court of the Supreme People's Court rendered the final civil judgment (2022) Zui Gao Fa Zhi Min Zhong No. 2009 in the case of Denka Company Limited v. A Bioengineering (Beijing) Co., Ltd. and Shandong A Health Consulting Service Co., Ltd. concerning infringement of invention patent rights. The Court dismissed the appeal filed by A Bioengineering (Beijing) Co., Ltd., affirmed the first-instance judgment, and held that the two defendants constituted infringement and shall be liable to the plaintiff Denka Company Limited. Beijing Caihe Law Firm was entrusted by Denka Company Limited to act as its agent in the first-instance and second-instance proceedings of the above two infringement cases, as well as in six patent invalidation cases and the first-instance and second-instance proceedings of patent invalidation administrative litigation cases.