Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5672963 | Variable induction control led transformer | Jon O. Reynolds, Richard Martin Hutchison | 1997-09-30 |
| 5513093 | Reduced open circuit voltage power supply and method of producing therefor | — | 1996-04-30 |
| 5363035 | Phase controlled transformer | Richard Martin Hutchison | 1994-11-08 |
| 5187428 | Shunt coil controlled transformer | Richard Martin Hutchison | 1993-02-16 |
| 4540871 | Welding gun with multi-directional switch | Floyd D. Hansen, James R. Kujawa | 1985-09-10 |
| 4450340 | Arc welder power supply with fail-safe voltage reducing circuit | Marvin L. Schiedermayer | 1984-05-22 |