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Zhifei Biotech announced that the company and its wholly-owned subsidiaries Beijing Zhifei Luzhu Biopharmaceutical Co., Ltd. and Anhui Zhifei Longkoma Biopharmaceutical Co., Ltd. have recently obtained invention patent certificates issued by the State Intellectual Property Office of the People's Republic of China. The name of the invention patent is “a stabilized adenovirus vector freeze-dried preparation and its application”. The patent number is ZL202311377259.3, the patent certificate number is 8546593, the patent application date is October 24, 2023, and the authorization announcement date is December 5, 2025. The above invention patents were obtained during the company's independent research and development process, and will be applied to related R&D projects in the future.

Zhitongcaijing·12/08/2025 09:49:08
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Zhifei Biotech announced that the company and its wholly-owned subsidiaries Beijing Zhifei Luzhu Biopharmaceutical Co., Ltd. and Anhui Zhifei Longkoma Biopharmaceutical Co., Ltd. have recently obtained invention patent certificates issued by the State Intellectual Property Office of the People's Republic of China. The name of the invention patent is “a stabilized adenovirus vector freeze-dried preparation and its application”. The patent number is ZL202311377259.3, the patent certificate number is 8546593, the patent application date is October 24, 2023, and the authorization announcement date is December 5, 2025. The above invention patents were obtained during the company's independent research and development process, and will be applied to related R&D projects in the future.