Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6498316 | Plasma torch and method for underwater cutting | Kevin Horner-Richardson, Roger W. Hewett | 2002-12-24 |
| 5266776 | Plasma arc cutting and welding tip | John Boisvert | 1993-11-30 |