Do you really understand what each digit of the patent application number stands for?

Patent applications must have a series of numbers, also called patent application numbers. What does it stand for? Today, Yipin Intellectual Property teaches you how to read these numbers! What does each digit of the patent application number stand for? The patent application number usually consists of 12 Arabic numerals. Through this number 12, we can clearly identify the year, type and corresponding order of patent application. For example, the patent number is ZL20 1820 123454. X (the patent number is compiled by the editor at will), in which the first four digits represent the year when the application was accepted, and the fifth digit represents the patent type (1 for invention, 2 for utility model, 3 for design patent, 8 for PCT invention patent which entered the national stage in China, and 9 for patent). Through this passage, I believe that the applicant will understand the general composition of the patent application number, so what is the function of the application number? The patent application number is a special number given to the patent applicant by the State Information Administration after accepting the patent application. Every accepted patent has its unique patent application number, which is equivalent to the patent ID card at the time of patent application. The patent application number will become the patent number after the patent is granted. It is worth noting that in the process of patent application, the patent application number should not be marked on the product or product packaging, otherwise it is suspected of impersonating a patent.