Recently, the Supreme People's Court rendered the final judgment (2023) Zui Gao Fa Zhi Xing Zhong No. 1261 in the case of a Japanese chemical industry co., ltd. v. the National Intellectual Property Administration and the third party Wuhan Tianma Microelectronics Co., Ltd. regarding the invention patent invalidation administrative dispute. The court dismissed the appeal filed by the appellant Japanese chemical industry co., ltd. and affirmed that Chinese Invention Patent No. 201380036938.2 (entitled "Doped organic semiconducting matrix material", hereinafter referred to as the "Patent-in-Suit") owned by the company was declared entirely invalid.

Previously, in April 2022, the National Intellectual Property Administration issued Invalidation Request Examination Decision No. 54983, declaring the Patent-in-Suit owned by the Japanese chemical industry co., ltd. entirely invalid and upholding the invalidation request filed by Wuhan Tianma Microelectronics Co., Ltd. In September 2023, the Beijing Intellectual Property Court issued a first-instance judgment upholding Decision No. 54983. Beijing Caihe Law Firm was entrusted by Tianma to act as the agent for Wuhan Tianma Microelectronics Co., Ltd. in the above invalidation request case, and as the litigation agent for the third party Wuhan Tianma Microelectronics Co., Ltd. in the first-instance and second-instance administrative litigation proceedings.