Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D936908 | Chin guard for a face shield | Richard D. Smith, Joseph R. Brusky, Paul H. Rumpke | 2021-11-23 |
| D932107 | Auto darkening filter for a welding helmet | — | 2021-09-28 |
| D931549 | Chin guard for a face shield | Richard D. Smith, Joseph R. Brusky, Paul H. Rumpke | 2021-09-21 |