Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6272850 | Catalytic converter temperature control system and method | Robert Michael Grant, Eugene S. Zimmerman, Michael John Cullen, Patrick J. Curran | 2001-08-14 |
| 4899579 | Onboard diagnostic system of vehicle ignition system | Michael Stephen Sweppy, Everett P. Schumaker | 1990-02-13 |
| 4404946 | Method for improving fuel control in an internal combustion engine | John William Hoard | 1983-09-20 |