How to tell whether it is a patent of Chinese patent medicine from the patent number?

You can't tell what patent it is by numbers alone. You can use China National Intellectual Property Administration's search engine to find it at/gjcx.jsp.

Enter the patent number in the corresponding search field, and then click the search button.

note:

The patent number 13 is the application number, and the patent number 9 is WeChat official account. Don't get mixed up.

Similarly, if you know the inventor, applicant and invention name, you can also inquire.

Patent-related cooperation can be found in Zhizhihui.