The application serial number in the patent application number is represented by 7 consecutive digits, generally used in ascending order, for example, starting from 0000001 and increasing in sequence until 9999999. The application serial number in the patent application number of each calendar year is re-arranged, that is, starting from January 1st of each year, the application serial number in the newly issued patent application number does not continue the application serial number used in the previous year, but Restart programming from 0000001.