File:Number of patent filings in fuel cells by the five key inventor locations.png
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DescriptionNumber of patent filings in fuel cells by the five key inventor locations.png |
English: Japanese inventors contributed heavily to the first major surge in patent filings related to fuel cells (2000–2005) and Chinese inventors to the second (2016–2020). |
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Source | https://www.wipo.int/edocs/pubdocs/en/wipo-pub-1076-en-patent-landscape-report-hydrogen-fuel-cells-in-transportation.pdf |
Author | WIPO |
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