Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6754502 | Geolocation of cellular phone using supervisory audio tone transmitted from single base station | Robert C. Hildebrand, Robert W. Boyd, David A. Hosang | 2004-06-22 |
| 6708032 | Base station hand-off mechanism for cellular communication system | Gayle Patrick Martin, Gates H. Fortier, Joseph A. Brasic | 2004-03-16 |