Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10743627 | Umbrella having an anti-inversion mechanism | David Haythornthwaite | 2020-08-18 |
| 10092069 | Umbrella having an anti-inversion mechanism | David Haythornthwaite | 2018-10-09 |
| 9668553 | Umbrella having an anti-inversion mechanism | David Haythornthwaite | 2017-06-06 |
| 9668554 | Umbrella having an anti-inversion mechanism | David Haythornthwaite | 2017-06-06 |
| 9609926 | Umbrella having improved shaft and rib assembly | David Haythornthwaite | 2017-04-04 |
| 9301582 | Umbrella having improved shaft and rib assembly | David Haythornthwaite | 2016-04-05 |