Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5668543 | Advance notification system and method utilizing passenger calling report generator | — | 1997-09-16 |
| 5657010 | Advance notification system and method utilizing vehicle progress report generator | — | 1997-08-12 |
| 5623260 | Advance notification system and method utilizing passenger-definable notification time period | — | 1997-04-22 |