When a patent applicant submits a patent application to the State Intellectual Property Office, he or she will be asked to fill in the applicant's address information. The official will then verify whether the information filled in by the applicant is accurate and decide whether to proceed to the next step. In addition, when it comes to patent-related issues, the official can accurately find the corresponding company and person in charge, so it is extremely necessary to provide accurate address information.

   In addition to being convenient for contacting patent applicants, the address information in patent data is also convenient for statistics on the invention and innovation activity information of various regions. However, due to the information reporting standards for patent addresses are not unified, related statistical work is often difficult to carry out.

   To facilitate academic research, CnOpenData analyzes the address data of Chinese patent applicants in detail, uniformly refines it to the street level, and attaches the latitude and longitude information of the detailed address, providing complete data support for related research.

Time interval

1985-2022

Field display

Sample data

Chinese invention patent application address information table

China invention authorization patent address information table

China Utility Model Patent Address Information Table

China Design Patent Address Information Table

Related Literature

• Josh L. and Amit S . 2021, "The Use and Misuse of Patent Data: Issues for Finance and Beyond", The Review of Financial Studies.
• Kou Zonglai and Liu Xueyue, 2020: "Patent Behavior of Chinese Enterprises: Characteristic Facts and the Impact of Innovation Policy", Economic Research, No. 3.

Data Update Frequency

Annual Update