DH

David Haythornthwaite

SH Shedrain: 5 patents #1 of 2Top 50%
📍 Xiguoshan, CN: #1 of 1 inventorsTop 100%
Overall (2017): #32,207 of 506,227Top 7%
5
Patents 2017

Issued Patents 2017

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
9756912 Wind resistant umbrella 2017-09-12
D789074 Button for a handle 2017-06-13
9668553 Umbrella having an anti-inversion mechanism ANDREW HAYTHORNTHWAITE 2017-06-06
9668554 Umbrella having an anti-inversion mechanism ANDREW HAYTHORNTHWAITE 2017-06-06
9609926 Umbrella having improved shaft and rib assembly ANDREW HAYTHORNTHWAITE 2017-04-04