Recently, the Beijing Intellectual Property Court issued a judgment in the administrative dispute over invention patent invalidation between a Japanese chemical industry Co., Ltd. (plaintiff), the National Intellectual Property Administration (defendant), and Wuhan Tianma Microelectronics Co., Ltd. (third party). The Court dismissed the plaintiff's claims and confirmed that all of the plaintiff's Chinese invention patent No. 201380036938.2 (entitled "Doped organic semiconducting matrix material", hereinafter referred to as the "involved patent") is invalid.

Previously, in April 2022, the National Intellectual Property Administration issued the Invalidation Request Examination Decision No. 54983, declaring the involved patent owned by the Japanese chemical industry Co., Ltd. entirely invalid, and upholding the invalidation request filed by Wuhan Tianma Microelectronics Co., Ltd. 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 above administrative litigation case.