Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1090998 | Filter for a welding helmet | Paul H. Rumpke, Chase P. Rutti, Joseph R. Brusky, Ziqian Wu | 2025-08-26 |
| D1041768 | Filter for a welding helmet | Paul H. Rumpke, Chase P. Rutti, Joseph R. Brusky, Ziqian Wu | 2024-09-10 |
| D1040437 | Filter for a welding helmet | Paul H. Rumpke, Chase P. Rutti, Joseph R. Brusky | 2024-08-27 |
| D992828 | Welding helmet | Paul H. Rumpke, Chase P. Rutti, Ziqian Wu | 2023-07-18 |