Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7176404 | System for quick disconnect of torch from power and gas supply unit | — | 2007-02-13 |
| 5941300 | Self-contained heat exchange apparatus | Ronald W. Colling, Kenneth C. Altekruse | 1999-08-24 |
| 5793016 | Remote foot control for TIG welding | Ronald W. Colling | 1998-08-11 |