The time required to complete the application after applying for a patent is: the application time for invention patents is within three years from the application date; the application time for utility model and design patents is eighteen months. Because invention patents need to go through preliminary examination and substantive examination, while design and utility model patents only need to go through preliminary examination for eighteen months.
Legal Basis
Article 34 of the "Patent Law of the People's Republic of China" After receiving an invention patent application, the patent administration department of the State Council shall, after preliminary examination, determine that it complies with this law If required, it will be announced after eighteen months from the date of application. The patent administration department of the State Council may publish the application as early as possible upon the applicant's request. Article 35 Within three years from the date of application for an invention patent, the patent administration department of the State Council may conduct a substantive examination of the application based on the request made by the applicant at any time; if the applicant fails to request a substantive examination beyond the time limit without justifiable reasons, the application shall be deemed invalid. considered withdrawn. When the patent administration department of the State Council deems it necessary, it may conduct a substantive examination of an invention patent application on its own.