According to the order from left to right, 1-4 in the patent application number indicates the year when the patent application was accepted, the 5th indicates the type of the patent application, the 6th-1 2 (***7) indicates the application serial number, indicating the relative order of accepting the patent application, and1after the last decimal point is the check bit. .
In ...
The classification number of the fifth digit application is represented by 1 digit, and the meanings of the digits used are as follows: 1 stands for invention patent application; 2 represents an application for a patent for utility model; 3 represents an application for a patent for design; 8 denotes the PCT invention patent application that entered the national stage in China; 9 denotes the PCT utility model patent application that entered the national stage in China.
The details are as follows
The numbering rules of patent application number 1 993-September 30, 2003: application year number (2 digits)+patent type (1 digit)+application sequence number (5 digits)+computer check bit (1digit), such as: 8920000/kloc-.
2003. 10.0 1 till now, the numbering rules are: application year (4 digits)+patent application type (1 digit)+application sequence number (7 digits)+computer check digit (1 digit), for example, 200330/.
Types of patent applications:
1= application for invention patent
2= utility model patent application
3= Application for patent for design
8= PCT invention patent application entered the national stage in China.
9= PCT utility model patent application entered the national stage in China.