Why doesn't Nanjing Youjia disclose the patent?

Protect the secret recipe of drugs from being leaked. In order to protect the secret recipe of drugs from being leaked, Nanjing Youjia kept the patent secret. A patent is an invention protected by legal norms. An invention that submits a patent application to a national or regional examination and approval authority and, after passing the examination according to law, grants the patent applicant the exclusive right to invent within a specified time. Nanjing Youjia Viral Wart Medical Research Institute is a research institution dedicated to the field of wart disease caused by human papillomavirus infection, especially condyloma acuminatum.