Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6493450 | Intercom system including improved automatic squelch control for use in small aircraft and other high noise environments | Charles A. Johnson | 2002-12-10 |
| 6160496 | Remote channel swap for aviation communications | — | 2000-12-12 |
| 5903227 | Remote channel swap for aviation communications | — | 1999-05-11 |