Since human society entered the information age, the rapid development and widespread application of digital technologies have given rise to the digital economy. Distinct from the agricultural economy of the farming era and the industrial economy of the industrial age, the digital economy represents a new economic form, driving force, and industrial model that has triggered profound transformations across society and economy. Currently, digital technologies, products, and services are not only accelerating their penetration into traditional industries through multi-directional, multi-level, and multi-chain approaches—termed industrial digitalization—but are also fostering the continuous expansion of digital industry chains and industrial clusters, known as digital industrialization.
Today, the digital economy has emerged as a new engine driving China's high-quality and rapid economic growth. Various new business formats spawned by the digital economy will also become crucial growth points for China's economy. To better support the innovative development of the digital economy, China released the Reference Relationship Table between Core Digital Economy Industries and International Patent Classification (2023) in March 2023. This document aligns the International Patent Classification (IPC) with core digital economy industries, maximizing coverage of patents related to core digital economy sectors while providing a clearer and more accurate foundation for constructing specialized patent databases.
Prior to the release of the new standard, CnOpenData utilized the Statistical Classification of Digital Economy and Its Core Industries (2021) and patent classification codes corresponding to national economic industry standards as guidelines for database construction. CnOpenData now adopts the updated Reference Relationship Table between Core Digital Economy Industries and International Patent Classification (2023) as the authoritative framework**, and will launch a series of regional and industry-specific statistical data on digital economy patents, aiming to provide academia with superior and cutting-edge data support for digital economy research.
The CnOpenData China Digital Economy Patent Citation and Cited Dataset comprises two tables: the Citation Information Table and the Cited Information Table. These tables systematically organize citation relationships for patents in four key categories: digital product manufacturing, digital product services, digital technology applications, and digital factor-driven industries.
Time Coverage（时间区间）
Up to 2024
Field Display（字段展示）
Sample Data（样本数据）
Digital Economy Patent Citation Table（数字经济专利引用表）
Digital Economy Patent Cited Table（数字经济专利被引用表）
Relevant Literature（相关文献）
- Huang, B., Li, H., Liu, J., & Lei, J., 2023: "Digital Technological Innovation and High-Quality Development of Chinese Enterprises: Evidence from Corporate Digital Patents," Economic Research Journal 3.
- Hu, Z., & Ma, S., 2023: "Impact of Market Integration on Enterprise Digital Innovation: With Discussion on Digital Innovation Measurement Methods," Economic Research Journal 6.
- Huang, X., & Gao, Y., 2023: "Digital-Real Industrial Technology Integration and Total Factor Productivity: Evidence from Chinese Enterprise Patent Data," China Industrial Economics 11.
- Huang, X., Wang, H., Sun, Y., et al., 2023: "Digital Technology and Enterprise Export Quality Upgrading: Evidence from Machine Learning Analysis of Patent Texts," The Journal of Quantitative & Technical Economics 12.
Data Update Frequency（数据更新频率）
Annual Update