Legal analysis: The receipt of the Notice of Qualified Preliminary Examination shows that the parties concerned have no obvious substantive defects in the preliminary examination of the patent, and there is no obvious non-compliance with the legal provisions, but they have not yet entered the patent authorization stage. The patent preliminary examination stage is the stage that accepted patent applications automatically enter after paying the application fee according to the regulations. The follow-up will be: 1, in the publication stage, the application for a patent for invention will enter the publication stage from the issuance of the notice of preliminary examination. If the applicant has not made an early request for publicity, it will enter the public preparation procedure from the date of application 18 months later. 2. Substantive examination stage: after the publication of the application for a patent for invention, if the applicant puts forward a request for substantive examination and it has taken effect, the applicant will enter the substantive examination procedure. 3. Authorization stage: If no reason for rejection is found after substantive examination, the examiner will make an authorization notice and apply for authorization registration. The patent office examines the legal effect and completeness of the authorized text, proofreads and modifies the description items of the patent application, and then issues the authorization notice and registration notice. After receiving the notice, the applicant shall go through the registration formalities and pay the prescribed fees within 2 months as required by the notice. If the registration formalities are completed on time, the Patent Office will grant the patent right and issue a patent certificate. At this point, the patent authorization process is completed.
Legal basis: Article 34 of the Patent Law of People's Republic of China (PRC). After receiving an application for a patent for invention, the administrative department for patent in the State Council, after preliminary examination, finds that it conforms to the provisions of this Law, and shall publish it within 18 months from the date of application. The patent administration department of the State Council may publish its application at an early date upon the request of the applicant.