Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4520449 | Phase angle detector | Edwin A. Johnson | 1985-05-28 |
| 4476833 | Phase angle modification of the torque amplitude for fuel distribution control systems | Edwin A. Johnson | 1984-10-16 |
| 4475511 | Fuel distribution control system for an internal combustion engine | Edwin A. Johnson | 1984-10-09 |
| 4418669 | Fuel distribution control system for an internal combustion engine | Edwin A. Johnson | 1983-12-06 |
| 4375668 | Timing optimization control | John J. Schira, Edwin A. Johnson | 1983-03-01 |
| 4357662 | Closed loop timing and fuel distribution controls | John J. Schira | 1982-11-02 |
| 4347571 | Integrated closed loop engine control | William R. Seitz | 1982-08-31 |
| 4344140 | Closed loop engine roughness control | — | 1982-08-10 |
| 4271798 | Alternate closed loop control system for an air-fuel ratio controller | William R. Seitz | 1981-06-09 |
| 4197767 | Warm up control for closed loop engine roughness fuel control | — | 1980-04-15 |
| 4184461 | Acceleration enrichment for closed loop control systems | — | 1980-01-22 |