Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11160687 | Vision-protective headgear with automatic darkening filter comprising an array of switchable shutters | Britton G. Billingsley, Kenneth Jarefors | 2021-11-02 |
| 11129748 | Curved eye protection shield for welding protection | Kenneth Jarefors, Laurent Froissard, Britton G. Billingsley | 2021-09-28 |