How long does it take from filing an application to obtaining a patent certificate?

Legal analysis: Time from filing an application to obtaining a patent certificate: 1. Authorization of a patent for invention If the application for a patent for invention is not found to be rejected after preliminary examination and substantive examination, the Patent Office shall make an authorization decision, issue a patent certificate, and register and announce it. It takes about 3-5 years for an invention patent to be applied for and authorized.

Legal basis: Article 40 of the Patent Law of People's Republic of China (PRC) * * * If the application for a patent for utility model and design is rejected after preliminary examination, the patent administration department in the State Council shall make a decision to grant the patent right for utility model or design, issue the corresponding patent certificate, and register and announce it at the same time. The patent right for utility model and the patent right for design shall take effect as of the date of announcement.