Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5222248 | Call hand-off with user selectable site switching | Daniel J. McDonald, Gregory N. Hesse | 1993-06-22 |
| 5214790 | Enhanced talkgroup scan algorithm | Daniel J. McDonald, Guy G. Romano | 1993-05-25 |
| 5101502 | Wide area trunked channel busy override | William A. Felderman, Daniel J. McDonald | 1992-03-31 |