Please tell me about the patent application for a secret recipe passed down from generation to generation. Pepsi-Cola does not have a patent.

Coca-Cola and Yunnan Baiyao both have trademarks.

You can protect it yourself as a trade secret, provided that you can protect it. If you cannot protect it, there is nothing you can do, unless you can prove that others have stolen technology from you through unfair means. secret.

You can also just register a trademark, but without applying for a patent. To apply for a patent, you need to disclose the content. Of course, there are also skills. This cannot be explained clearly in a sentence or two.