According to Article 34 of the Patent Law, it takes 18 months to publish the patent application materials submitted to the patent administrative department of the State Council after preliminary examination and approval.
China Patent Office will authorize or reject the examination conclusion according to the examination situation. Generally, this process takes about 3-6 months for appearance design, 6- 10 months for utility model and 2-4 years for invention patent.
If the patent application is authorized, it shall go through the registration formalities in accordance with the requirements of the patent authorization notice and obtain a patent certificate.
If the patent application is rejected, it shall be determined whether to file a request for reexamination according to the specific circumstances.
A patent application is a request made by an inventor, designer or other subject who has the right to apply to the Patent Office for a patent right for invention or design. According to the provisions of China's patent law, an application for a patent shall be submitted to the Patent Office with an application, specification, patent claim, abstract, drawings and a request for priority. Among them, the appended drawings and priority claims are not essential to every application, but they are beneficial to patent applications. A patent application shall be in written form, mainly including the following contents: the request, the name of the invention or design, the name and identity of the applicant, the name and identity of the agent and the signature.
Baidu Encyclopedia: Patent Application