TOKYO -- China has surpassed Japan to become the most competitive country when it comes to hydrogen-related patents, a new study has found, bolstering its position as a leader in carbon-free energy combined with its edge in solar and wind.
Energy
China powers forward in hydrogen patents, outcompeting Japan
Investment spikes after Beijing labeled hydrogen a key energy source
Many Chinese companies are entering the green hydrogen field, leading to massive numbers of patent applications. (Photo by Kosaku Mimura)
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