How long does it take to be announced after passing the preliminary review?

Legal analysis: It has entered the stage of waiting for announcement since the preliminary approval notice was issued. If it meets the provisions of the Patent Law after preliminary examination by the Patent Office, it will be published 18 months from the date of application.

Legal basis: "Patent Law of the People's Republic of China" Article 34 After the patent administration department of the State Council receives an application for an invention patent, if it is determined upon preliminary examination that it meets the requirements of this law, the patent application shall be valid from the date of application. It will be announced immediately after eighteen months. The patent administration department of the State Council may publish the application as early as possible upon the applicant's request.