Which form should be used to submit public comments on patents? Is it an invalidation declaration form, a statement of opinion form, or something else, but it seems difficult to fill in?

The request for invalidation is for an already authorized patent, and a public opinion statement on the patent is used. Declaration of invalidity requires sufficient evidence and finding out the circumstances in which the authorized patent does not comply with the patent law according to specific laws and regulations. When raising public opinions on a patent, which materials can appear in this patent, it may have a certain impact on the future review of the patent, that is, it may narrow the scope of protection.