If you want to apply for a patent, you should find an agency to help you apply for a patent (including writing patent documents and handling patent applications). Generally, the agency fees for invention patents vary from place to place. Generally, it costs 4,000 to 6,000 yuan in Beijing, much less in small and medium-sized cities, and generally 1500 to 3,000 yuan. The patent application fee is paid to the patent office, even less. Individual applications should be deferred according to the application, and the annual fee can also be deferred after three years of authorization; There are also patent grants in various places, and generally some grants are given to inventors. I don't know where you are from, and the amount of information will basically make you not pay for patent applications and patent agents. An invention patent usually takes three years from application to authorization. Only after the patent certificate is authorized can you really own the patent right. During the first twelve months of patent application, it is recommended that you keep your secret recipe confidential.
Patent application is very important to advertise your medicine, and it is also conducive to your promotion. But the psychological preparation you need may not make you make money from your secret recipe by applying for a patent. There is also a problem of promoting your own methods and means.