Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4856465 | Multidependent valve timing overlap control for the cylinders of an internal combustion engine | Martin Person | 1989-08-15 |
| 4803966 | Engine control system | — | 1989-02-14 |
| 4794790 | Diagnostic method and arrangement for quantitatively checking actuators in internal combustion engines | Florin Margarit-Metaxa | 1989-01-03 |