Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4671107 | EGR diagnostic system | Leroy E. Medendorp, Edward C. Perry, John F. Schweikert | 1987-06-09 |
| 4309971 | Adaptive air/fuel ratio controller for internal combustion engine | David Evans, James R. Norford, John A. Zahorchak | 1982-01-12 |
| 4306529 | Adaptive air/fuel ratio controller for internal combustion engine | Fayetta L. Colden, David A. Singer, John A. Zahorchak | 1981-12-22 |
| 4190028 | Mixture forming assembly for closed loop air-fuel metering system | Clifford Carlson | 1980-02-26 |