File:Patent filings in the field of fuel cells by year of filing (1950–2020).png
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Summary
| Description |
English: Patent filings in the field of fuel cells by year of filing (1950–2020).The first measurable increase took place in the 1960s in relation to NASA’s Gemini project and the next in the mid-1980s and around 1991, when the first fuel cells were integrated into cars. The sharp increase in patent filings related to fuel cells that occurred from 2000 to 2005 was followed by a decrease, before a new upswing began in 2016 and peaked in 2019. |
| Date | |
| 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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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 12:32, 12 July 2022 | | 800 × 831 (66 KB) | Mattdpat | Uploaded a work by WIPO from https://www.wipo.int/edocs/pubdocs/en/wipo-pub-1076-en-patent-landscape-report-hydrogen-fuel-cells-in-transportation.pdf with UploadWizard |
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