If it is an invention patent, it will enter the public domain after passing the preliminary examination, and the relevant information will be disclosed in the patent bulletin published regularly, or inquired on the patent announcement platform of China, official website and China National Intellectual Property Administration.
Patent announcement link: /zwgs/
China patent announcement platform link: /index.action
Because the patent for utility model and design is only a preliminary examination, the authorization will be announced after it is passed, so no relevant information can be found in the examination stage.