Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5075584 | Electromagnetic solenoid valve with variable force motor | David Domanchuk, Allen Pearson | 1991-12-24 |
| 5000420 | Electromagnetic solenoid valve with variable force motor | David Domanchuk, Allen Pearson | 1991-03-19 |
| 5000421 | Electromagnetic solenoid valve with variable force motor | David Domanchuk, Allen Pearson | 1991-03-19 |
| 4863142 | Electromagnetic solenoid valve with variable force motor | David Domanchuk, Allen Pearson | 1989-09-05 |
| 4617968 | Electrohydraulic control of a spool valve for energizing a heavy duty automatic transmission clutch | — | 1986-10-21 |
| 4247972 | Method of manufacturing a piston ring | Robert R. Rositch | 1981-02-03 |