智飞生物：关于取得发明专利证书的公告

Core Viewpoint - The company, Zhifei Biological Products Co., Ltd., and its wholly-owned subsidiaries have recently obtained an invention patent certificate from the National Intellectual Property Administration of the People's Republic of China for a vaccine and its preparation method [1] Group 1 - The patent is titled "A Vaccine and Its Preparation Method" [1]