What are the main figures in China's patent literature?

The serial numbers in China patent documents have been revised many times, and now there are patent application number, invention publication number, authorization announcement number, patent number and classification number. What are the main figures in China's patent literature? (1) patent application number. After the submitted patent application documents have passed the format examination of China Patent Office, a notice of acceptance will be issued to determine the application date and give the patent application number. The application number is the code for the applicant to contact the Patent Office in the future. It consists of nine digits, such as 890 1558.2, 92211447.1,933043054.3. The first two digits are the year, 89 is the year accepted by 1989, the third digit 1.2.3 stands for invention, utility model and design patent application respectively, and the last five digits are running water. (2) WeChat official account of an application for a patent for invention, such as CN 10738 10A, where CN stands for China code, A stands for invention disclosure (note that this document is the original application document without modification and approval), 1 is an invention, and the last 6 digits are the serial number of the disclosure document. (3) Authorization announcement numbers, such as CN1021412C, CN2 137838Y, CN30 17883D, where C is the authorized invention patent, and Y and D respectively represent the authorized utility model and design patent. (4) The patent number, such as ZL 92305038.8, is formed by adding ZL (patent code) before the original application number. (5) classification number, marked with international standard classification.