Green and low-carbon technologies primarily encompass technologies that achieve carbon reduction, zero-carbon, and negative-carbon effects through clean utilization of traditional energy sources, energy efficiency improvements, new energy utilization, and greenhouse gas capture, utilization, and storage (CCUS). These technologies exclude pollution reduction and resource recycling solutions that merely contribute to carbon reduction synergies. Green and low-carbon technology patents refer to inventions with green and low-carbon technologies as their core themes, which demonstrate measurable technical effects in reducing carbon emissions compared to existing technologies.
This classification system adopts a hierarchical structure, dividing green and low-carbon technologies into four levels:
- Level 1: 5 technical branches (fossil energy decarbonization technologies, energy conservation & energy recovery, clean energy, energy storage technologies, and CCUS)
- Level 2: 19 sub-branches
- Level 3: 56 sub-branches
- Level 4: 62 sub-branches
The China Green and Low-Carbon Patent Application and Authorization Dataset developed by CnOpenData categorizes patents into three types based on the International Patent Classification (IPC) system: invention disclosures, granted inventions, and utility models. Each category contains basic information tables and transaction records. The classification framework aligns with global standards by referencing the WIPO Green Technology Inventory and Japan Patent Office's Green Transformation Technologies List, facilitating international comparability and supporting the construction of a global green technology database.
Temporal Coverage
- Invention disclosures: Statistics based on application publication dates (1985-2024)
- Granted inventions/Utility models/Designs: Statistics based on authorization announcement dates (1985-2024)
Data Specifications
- This classification system establishes cross-references between green and low-carbon technologies and IPC codes. Each green technology corresponds to one or multiple IPC codes, indicating relevance to the described technology.
- "Partially related" in the IPC column denotes that only some patents under the specified IPC code(s) involve green technologies; "Fully related" indicates all patents under the code(s) pertain to green technologies.
- The classification references the International Patent Classification (IPC2022).
- Low-carbon encompasses fossil energy decarbonization + energy conservation & recovery; Zero-carbon includes clean energy + energy storage; Negative-carbon refers to CCUS technologies.
Data Scale
Field Display
Sample Data
Green and Low-Carbon Invention Disclosure Basic Information Table
Green and Low-Carbon Invention Disclosure Transaction Records
Green and Low-Carbon Granted Invention Basic Information Table
Green and Low-Carbon Granted Invention Transaction Records
Green and Low-Carbon Utility Model Basic Information Table
Green and Low-Carbon Utility Model Transaction Records
Related Literature
- Xu Jia & Cui Jingbo, 2020: "Low-Carbon Cities and Enterprise Green Technology Innovation," China Industrial Economics, No. 12.
Data Update Frequency
Annual updates