An industrial robot workshop of SIASUN in Shenyang, capital of northeast China's Liaoning Province. Photo: Xinhua

China claims more patents than any country but most are worthless

China overtook Japan eight years ago to become the biggest hoarder of domestic patents and has remained in the lead ever since, approving 1.8 million last year alone

Topic |   US-China trade war

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An industrial robot workshop of SIASUN in Shenyang, capital of northeast China's Liaoning Province. Photo: Xinhua
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