Norris; Stephen W.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Norris; Stephen W..The latest application filed is for "high power factor rectifier/filter for three phase input welder or plasma cutter".
- Norris; Stephen W. - New London NH
| Patent | Date |
|---|---|
| High power factor rectifier/filter for three phase input welder or plasma cutter Grant 9,550,249 - Norris , et al. January 24, 2 | 2017-01-24 |
| High Power Factor Rectifier/filter For Three Phase Input Welder Or Plasma Cutter App 20140209588 - Norris; Stephen W. ; et al. | 2014-07-31 |
| Plasma arc torch system with pilot re-attach circuit and method Grant 6,794,601 - Norris , et al. September 21, 2 | 2004-09-21 |
| Plasma ARC torch system with pilot re-attach circuit and method App 20040045942 - Norris, Stephen W. ; et al. | 2004-03-11 |
| Solenoid control and safety circuit system and method Grant 6,670,572 - Norris , et al. December 30, 2 | 2003-12-30 |
| Solenoid control and safety circuit system and method App 20030164359 - Norris, Stephen W. ; et al. | 2003-09-04 |
| Plasma-arc torch system with pilot re-attach circuit and method Grant 6,369,350 - Norris April 9, 2 | 2002-04-09 |
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