Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 7381925 | Torch connection detection system and method | Stephen Paul Ferkel | 2008-06-03 | $25,687,000 |
| 6809293 | Controlled output for welding | Michael Allen Sammons, Stephen Paul Ferkel, Mark Steven Kadlec | 2004-10-26 | $15,748,000 |
| 6770846 | Welding output prevention control having open condition detection | — | 2004-08-03 | $17,348,000 |
| 6750427 | Controlled welding output with fused electrode detection | — | 2004-06-15 | $24,239,000 |
| 6548784 | Controlled output for welding | Michael Allen Sammons, Stephen Paul Ferkel, Mark Steven Kadlec | 2003-04-15 | $17,315,000 |
| 6504738 | Freewheeling current conduction in welding power supply | Brian A. Schwartz, Jon O. Reynolds | 2003-01-07 | $13,416,000 |
| 6103994 | Welding device with remote device detection | Stephen Paul Ferkel | 2000-08-15 | $31,139,000 |