How to see whether the patent is authorized?

Method 1: Inquire about the legal status of China National Intellectual Property Administration on its website.

Method 2: As long as the utility model patent or design patent published on China National Intellectual Property Administration website is authorized, because these two patents are not authorized to be published. In addition, the invention patent is an authorization announcement document and has been authorized. Note that it is an "authorization announcement" rather than an "open". Because the invention patent is first "published" and then examined, and then "announced" after examination.