The formula cannot be patented, but the manufacturing method and equipment can be patented. This degree is very subtle and needs to be grasped. In addition, the essence of patent is to open a monopoly for a period of time. However, under the condition of "full disclosure" in line with the requirements of the patent law, a certain component may not be written, or the optimal proportion may not be disclosed, that is, as long as novelty, creativity and practicality are satisfied. For example, pancakes are best baked at 100 degree, and can be baked at 70 degree in the patent, but the taste is slightly worse. I don't know if I made myself clear ... I'm too tired to type on my mobile phone. If you have any questions, please contact me.