Methodological note. EIS: Development of environment-related technologies, percentage of all technologies

The number of environment-related inventions is expressed as a percentage of all domestic inventions (in all technologies).

Indicators of technology development are constructed by measuring inventive activity using patent data across a wide range of environment-related technological domains, including environmental management, water-related adaptation, and climate change mitigation technologies. The counts used include only higher-value inventions (with patent family size = 2).

The indicator is obtained as a quotient.

Numerator:

Number of environment-related inventions.

Denominator:

Total number of patents.