Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5216352 | Solid state current controlled interruption system | Donald H. Ward | 1993-06-01 |
| 5170310 | Fail-resistant solid state interruption system | Donald H. Ward, James V. Fixemer, Julius Michael Liptak | 1992-12-08 |
| 5110087 | Variable force solenoid hydraulic control valve | James R. Ward, Terry L. Forbes | 1992-05-05 |
| 5106053 | Solenoid operated hydraulic control valve | Alan L. Miller, Todd L. King, Kenneth R. Gallaher, Jerome J. Zawada, William P. Umlauf | 1992-04-21 |
| 4988967 | Solenoid operated hydraulic control valve | Alan L. Miller, Todd L. King, Kenneth R. Gallaher, Jerome J. Zawada, William P. Umlauf | 1991-01-29 |
| 4949215 | Driver for high speed solenoid actuator | Stanley B. Quinn, Jr., Todd L. King | 1990-08-14 |
| 4511834 | Control and stabilizing system for damperless synchronous motor | — | 1985-04-16 |
| 4511835 | Voltage-controlled, inverter-motor system | — | 1985-04-16 |
| 4488101 | Starting system for chopper controlled motor-commutated thyristor inverter | — | 1984-12-11 |
| 4291368 | Pulse-width modulated inverter system and method | Raymond J. Yarema | 1981-09-22 |