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Japan, Europe lead in global hydrogen patent race: report

South Korea, China gain while U.S. fades in critical tech for cleaner future

A hydrogen fueling station in Seoul: South Korea is focusing on end-use applications for hydrogen, according to a study by the European Patent Office and the International Energy Agency.   © Reuters

TOKYO -- South Korea and China are speeding up innovation in hydrogen technologies alongside major players Europe, Japan and the U.S. as the resource increasingly comes to be seen as a key to achieving clean energy transitions and decarbonization.

A joint study by the European Patent Office and the International Energy Agency released on Tuesday analyzed global data on international patent families -- groups of international patents for a particular invention -- of hydrogen technologies to spot trends in innovation across countries and sectors.

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