Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4977589 | Signalling and control protocol for a communication system | Brian K. Johnson | 1990-12-11 |
| 4941203 | Two-way radio communication system having selectable operating modes | Morris A. Moore, Brian K. Johnson | 1990-07-10 |
| 4591863 | Low profile antenna suitable for use with two-way portable transceivers | — | 1986-05-27 |