Y02A TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
Description
Y02A encompasses technologies and applications designed to help human systems and natural environments adapt to the effects of climate change, including impacts already occurring or expected. This subclass covers innovations such as drought-resistant agriculture, flood management systems, climate-resilient infrastructure, water conservation technologies, and ecosystem protection measures. It includes adaptations across sectors like agriculture, water resources, construction, and disaster management where the primary purpose is reducing vulnerability to climate impacts rather than mitigating greenhouse gas emissions. Related mitigating technologies (focused on reducing climate change causes) are classified under Y02.
Filing statistics
CPC subclass Y02A recorded 979,525 patent applications worldwide between 2013 and 2023. Annual filings grew from 37,693 in 2013 to 198,155 in 2023 (+426%), peaking at 222,287 applications in 2022. The most active applicants in class Y02 are CHINESE ACADEMY OF SCIENCES (30,705 applications), TOYOTA MOTOR CORPORATION (29,065 applications) and SGCC(STATE GRID CORPORATION OF CHINA) (22,908 applications).
Source: EPO PATSTAT, worldwide filings
6 direct subcodes
Child Classifications
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- Y02A 10/00 at coastal zones; at river basins
- Y02A 20/00 Water conservation; Efficient water supply; Efficient water use
- Y02A 30/00 Adapting or protecting infrastructure or their operation
- Y02A 40/00 Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A 50/00 in human health protection, e.g. against extreme weather
- Y02A 90/00 Technologies having an indirect contribution to adaptation to climate change
Top Applicants
Top 10 applicants by patent filingsfor class Y02, 2013–2023, worldwide · Source: EPO PATSTAT
- CHINESE ACADEMY OF SCIENCES 30,705
- TOYOTA MOTOR CORPORATION 29,065
- SGCC(STATE GRID CORPORATION OF CHINA) 22,908
- LG CHEM KR 22,513
- LG ENERGY SOLUTION KR 20,650
- TOYOTA MOTOR CORPORATION JP 18,015
- HYUNDAI MOTOR COMPANY KR 17,857
- ROBERT BOSCH DE 16,262
- SAMSUNG ELECTRONICS COMPANY KR 14,408
- GE (GENERAL ELECTRIC COMPANY) US 12,474