Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11413190 | Protective headgear comprising a curved switchable shutter and comprising multiple antireflective layers | Kenneth Jarefors, Britton G. Billingsley | 2022-08-16 |
| 11324633 | Welding helmet having a filter arrangement | Kenneth Jarefors | 2022-05-10 |