According to different types of patents in China, there are WeChat official account and announcement number. There is no WeChat official account for utility model and design patent. If they pass the examination, they will be authorized by the announcement. This is the announcement number. The invention patent has an open number, and the disclosure of the invention does not mean authorization. There is an announcement number after authorization. Neither the patent application number nor the WeChat official account indicates that the patent has been owned, but the announcement number can indicate that the patent has been authorized.