Issued Patents 2021
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11147333 | Headband arrangement and welding helmet equipped with the same | — | 2021-10-19 |
| D927785 | Headgear of welding helmet | — | 2021-08-10 |
| 11045356 | Welding helmet having a zipper arrangement and welding helmet assembly | — | 2021-06-29 |
| D916383 | Welding helmet | — | 2021-04-13 |
| 10930902 | Lockable fitting structure for an electric air-purifying respirator of an auto-darkening welding helmet | — | 2021-02-23 |
| 10890792 | Auto darkening filter capable of achieving high light-shielding number | — | 2021-01-12 |