Item D, the invention patent can only be authorized after preliminary examination and substantive examination, and it has been published twice accordingly. The first time was the publication of patent application: after receiving the application for a patent for invention, the patent administrative department of the State Council, after preliminary examination, found that it met the requirements, published it 18 months after 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. Second Announcement of Patent Authorization: If the application for a patent for invention is not found to be rejected after substantive examination, the patent administration department of the State Council will make a decision to grant the patent right for invention, issue a certificate of patent for invention, and register and announce it at the same time. The invention patent right shall take effect as of the date of announcement. After preliminary examination and authorization, the utility model and design are correspondingly disclosed only once, that is, authorized to be disclosed.