Supplementary patent of patent

1, China's patent law is not allowed to modify the authorized patent documents, let alone supplement the contents of the claims.

If the technical content you want to add to the claim has been made public, there is no way to remedy it.

3. If it has not been made public, you can apply for a new utility model patent or invention patent to protect it.

4. The way to modify the authorized patent claim is to put forward that part of the patent right is invalid, and then combine the characteristics of the original claim, but no new features can be added and the scope of protection is not allowed to be expanded.