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David Haythornthwaite

SHShedrain: 1 patents #1 of 2Top 50%
Xiguoshan, CN: #2 of 2 inventorsTop 100%
Overall (2020): #501,373 of 565,922Top 90%
1 Patents 2020

Issued Patents 2020

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10743627 Umbrella having an anti-inversion mechanism ANDREW HAYTHORNTHWAITE 2020-08-18

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