Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4592818 | Cathodic protection system | William R. Krueger | 1986-06-03 |
| 4559017 | Constant voltage anode system | William R. Krueger | 1985-12-17 |
| 4486181 | Marine propulsion device including thrust bushing anode | — | 1984-12-04 |
| 4483682 | Linear power assist mechanism | William R. Krueger | 1984-11-20 |
| 4479467 | Multiple spark CD ignition system | Thomas W. Burrows | 1984-10-30 |
| 4413215 | Marine trim and tilt positioning system | William R. Krueger | 1983-11-01 |
| 4283668 | DC Motor control with alternate action solenoid drive circuit | — | 1981-08-11 |
| 4276868 | Capacitor discharge ignition system having automatic spark advance | Thomas W. Burrows | 1981-07-07 |
| 4275322 | Ignition system with active pulse discriminating means | William R. Krueger | 1981-06-23 |
| 4262643 | Digital timing control system for an internal combustion engine | William R. Krueger | 1981-04-21 |
| 4260937 | Speed sensitive field weakening control for traction motors | William R. Krueger | 1981-04-07 |
| 4227132 | Thyristor interlock and indicator light circuit for electric vehicles | Gerald N. McAuliffe | 1980-10-07 |
| 4214288 | Direct current motor control with protective solenoid latching | Gerald N. McAuliffe | 1980-07-22 |
| 4200078 | C. D. ignition system with active pulse discriminating means | William R. Krueger | 1980-04-29 |