Recently, the Supreme People's Court rendered the final civil judgment in (2022) Supreme Court IP Civil Final No. 2009 regarding the dispute over infringement of invention patent rights between Denka Company Limited and a Bioengineering (Beijing) Co., Ltd., as well as a Shandong Health Consulting Service Co., Ltd. The judgment dismissed the appeal filed by the Bioengineering (Beijing) Co., Ltd., upheld the first-instance judgment, and found that the two defendants constituted infringement and shall bear tort liability to the plaintiff Denka Company Limited.

Previously, in December 2021, the Beijing Intellectual Property Court issued the first-instance civil judgment in (2019) Jing 73 Chu Min No. 1222 in this case, ruling that the two defendants constituted infringement and shall bear tort liability to the plaintiff Denka Company Limited. Up to now, the patent in question has been the subject of five invalidation requests, all of which resulted in the maintenance of the patent's validity. 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 infringement case, as well as in the five patent invalidation cases.