1. It can be queried through China patent inquiry system;
2. Visit China National Intellectual Property Administration for patent number inquiry;
3. The predecessor of China National Intellectual Property Administration was the Patent Office of the People's Republic of China (hereinafter referred to as the China Patent Office), which was established with the approval of the State Council in 1980. 1998, institutional reform in the State Council, China Patent Office changed its name to China National Intellectual Property Administration, and became an institution directly under the State Council, in charge of patent work and coordinating foreign-related intellectual property work.
A patent certificate is a patent certificate issued to a patent applicant by the patent administrative department of the State Council (i.e. China National Intellectual Property Administration) if the patent application has passed the examination and no reason for rejection has been found, and it meets the conditions for granting a patent right. This is a legal document.