Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5285391 | Multiple layer road memory storage device and route planning system | Bernard C. Smith, Jr. | 1994-02-08 |
| 5270937 | Vehicle map position determining apparatus | Mary F. Spencer | 1993-12-14 |
| 5184303 | Vehicle route planning system | — | 1993-02-02 |