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China university patent statisticsNEW

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Digital economy patent application and authorization dataNEW

Patents and citation data of Little Giant and individual champion companiesNEW

Small giant and single champion enterprise design patent details table

Statistics on the entry and exit of Chinese industrial and commercial enterprisesNEW

Statistics on entry and exit information of Chinese partnershipsNEW

Basic information data of manufacturing industrial and commercial registered enterprisesNEW

Patent and citation data of A-share listed companiesNEW

Patent details of A-share listed companies
A-share listed companies' patent application details table
Details of Design Patents Authorized by A-share Listed Companies

Green patents and citation data of A-share listed companies

A-share listed companies green patent details table

Patent and citation data of Chinese industrial enterprisesNEW

Green patents and citation data of Chinese industrial enterprisesNEW

Details of Green Patents of Chinese Industrial Enterprises

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China foreign trade index data

  According to Article 44 of the Regulations of the People's Republic of China on Radio Administration: "Except for low-power short-range radio transmission equipment, all other radio transmission equipment produced or imported for domestic sale and use shall obtain type approval from the national radio regulatory authority."

  The filing of radio transmission equipment sales follows a regional management principle, where sellers are responsible for filing. Under laws and regulations such as the Company Law, Regulations on the Administration of Enterprise Legal Person Registration, Regulations on Company Registration, and Regulations on Individual Business Households, the determination of an independent market entity depends on whether it possesses a business license. If both a parent company and its subsidiaries engage in sales activities, both must complete sales filings. Different branches of the same enterprise with separate business licenses must also file independently.

  CnOpenData has compiled over 60,000 records of radio transmission equipment sales enterprise filing information from early 2019 to 2023 to support related research.


Time Period

January 9, 2019 - January 10, 2023


Field Descriptions


Sample Data


Data Update Frequency

Annual Update