Includes three parts: application year number, application type number and application serial number.
In order from left to right, the 1st to 4th digits in the patent application number indicate the year in which the patent application was accepted, the 5th digit indicates the type of patent application, and the 6th to 12th digits indicate the type of patent application. (***7 digits) is the application serial number, indicating the relative order in which patent applications are accepted. Each Arabic numeral used in the patent application number is decimal. Usage Rules 1 Joint use of patent application number and check digit
The State Intellectual Property Office will give the patent application number and check digit when accepting a patent application. The check digit is located after the patent application number, and a subscripted single-byte solid dot symbol is used as a separator between the patent application number and the check digit. Unless otherwise provided by laws, regulations and administrative regulations, the patent application number and check digit (including the spacer between the two) should be used in various statutory procedures stipulated in the Patent Law, Patent Law Implementing Rules and other relevant regulations. Used in combination.
Usage Rule 2: Joint use of the patent application number and the Chinese country code CN
The Chinese country code CN can be used in conjunction with the patent application number to indicate that the patent application is filed by the Chinese country. Accepted by the Intellectual Property Office. The code CN should be placed before the patent application number. If necessary, a 1-bit single-byte space can be used between the CN and the patent application number.
Usage Rule 3: Writing and printing format of patent application number
Except for laws, regulations and administrative regulations stipulating that all digits of the patent application number (including when used in conjunction with check digits) must Except for continuous writing or printing, 1 single-byte space can be used between the year number and type number, type number and serial number of the patent application number.
No spaces may be used within the numeric fields representing the year number and serial number, between the serial number and the separator, and between the separator and the check digit.
No other words or numbers other than those specified in Paragraph 1 of Usage Rules 1, Usage Rules 2 and Usage Rules 3 may be used before, after, or in the patent application number (including when used in conjunction with the check digit). , symbols or spaces as part of the patent application number.