Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5686910 | Vehicular emergency message system with automatic periodic call-in | Walter A. Dorfstatter, Daniel Lanier Dickerson | 1997-11-11 |
| 5687215 | Vehicular emergency message system | Walter A. Dorfstatter | 1997-11-11 |