Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7509931 | Power electronics circuit for electromechanical valve actuator of an internal combustion engine | Michael W. Degner, John Grabowski | 2009-03-31 |
| 6978745 | System for controlling electromechanical valves in an engine | — | 2005-12-27 |
| 6971346 | System for controlling electromechanical valves in an engine | — | 2005-12-06 |
| 6281662 | Battery charging DC to DC converter | — | 2001-08-28 |
| 5712568 | Battery voltage measurement system | Paul William Keberly | 1998-01-27 |
| 4498137 | Programmable refiner controller with horsepower-days per ton scaling | — | 1985-02-05 |
| 4184204 | Programmable refiner controller | — | 1980-01-15 |