DuVal; Randall J.
Patent Applications and Registrations
Patent applications and USPTO patent grants for DuVal; Randall J..The latest application filed is for "welder generator engine speed control".
- DuVal; Randall J. - Appleton WI
| Patent | Date |
|---|---|
| Welder generator engine speed control Grant 11,027,356 - DuVal , et al. June 8, 2 | 2021-06-08 |
| Inductor and system for welding for maintaining welding arcs Grant 10,919,103 - DuVal February 16, 2 | 2021-02-16 |
| Welder Generator Engine Speed Control App 20190105723 - DuVal; Randall J. ; et al. | 2019-04-11 |
| Welder generator engine speed control Grant 10,144,082 - DuVal , et al. De | 2018-12-04 |
| Inductor And System For Welding For Maintaining Welding Arcs App 20170274469 - DuVal; Randall J. | 2017-09-28 |
| Welder Generator Engine Speed Control App 20170182579 - DuVal; Randall J. ; et al. | 2017-06-29 |
| Inductor and system for welding for maintaining welding arcs Grant 9,676,053 - DuVal June 13, 2 | 2017-06-13 |
| Welder generator engine speed control Grant 9,604,302 - DuVal , et al. March 28, 2 | 2017-03-28 |
| Welder Generator Engine Speed Control App 20160151851 - DuVal; Randall J. ; et al. | 2016-06-02 |
| Welder generator engine speed control Grant 9,266,183 - DuVal , et al. February 23, 2 | 2016-02-23 |
| Inductor And System For Welding For Maintaining Welding Arcs App 20140027442 - DuVal; Randall J. | 2014-01-30 |
| Rotor And Generator For Reducing Harmonics App 20140028141 - DuVal; Randall J. | 2014-01-30 |
| Welder Generator Engine Speed Control App 20140027428 - DuVal; Randall J. ; et al. | 2014-01-30 |
| Electrical reactor assembly having center taps Grant 7,315,231 - DuVal January 1, 2 | 2008-01-01 |
| Electrical reactor assembly having center taps Grant 6,954,131 - DuVal October 11, 2 | 2005-10-11 |
| Electrical Reactor Assembly Having Center Taps App 20050156701 - DuVal, Randall J. | 2005-07-21 |
| Electrical Reactor Assembly Having Center Taps App 20040196128 - DuVal, Randall J. | 2004-10-07 |
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