Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4829442 | Beacon navigation system and method for guiding a vehicle | Mark B. Kadonoff, James F. Maddox, Robert W. George, II | 1989-05-09 |
| 4815840 | Position locating system for a vehicle | James F. Maddox, Robert W. George, II | 1989-03-28 |