Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842089 | Four wheel steering system with closed-loop feedback and open-loop feedforward | Steven J. Hallman | 1989-06-27 |
| 4828061 | Closed-loop four wheel steering system having dual response rate rear steering | Rao Mallikarjuna Chalasani, Steven J. Hallman | 1989-05-09 |