Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9908196 | Variable switching frequency power supply plasma cutters | Karunakar Reddy Gujja, John W. Hamer | 2018-03-06 |
| 7605341 | Metering system and method for supplying gas to a torch | Wayne Stanley Severance, Jr. | 2009-10-20 |
| 7115833 | Metering system and method for supplying gas to a torch | Wayne Stanley Severance, Jr. | 2006-10-03 |
| 5811757 | Power source including parallel switching circuits and related methods for a welding or cutting system | — | 1998-09-22 |
| 5756963 | Saturation sensing power source and related methods for a welding or cutting system | — | 1998-05-26 |
| 5290995 | Plasma arc cutting system having fluid metering and power control systems | Peter Budai, Wayne Stanley Severance, Jr. | 1994-03-01 |
| 4345139 | Constant current SCR power supply method and system for a welding load | — | 1982-08-17 |