Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7962166 | Method for indicating a band plan for a trunked radio communications system | John M. Gilbert, Donald R. Griffis, Daniel J. McDonald, Christopher H. Wilson | 2011-06-14 |
| 7546085 | Method for preventing an unauthorized device from operating in a 800 MHz trunked radio communications system | Marc W. Cassidy, John M. Gilbert, Donald R. Griffis, Daniel J. McDonald, David R. Mills | 2009-06-09 |
| 7536196 | Method for preventing an unauthorized device from operating in an 800 MHz trunked radio communications system using channels 559 to 320 | Marc W. Cassidy, John M. Gilbert, Donald R. Griffis, Daniel J. McDonald, David R. Mills | 2009-05-19 |
| 7228130 | Method for preventing an unauthorized device from operating in an 800 MHz trunked radio communications system using channels 319 to 0 | Marc W. Cassidy, John M. Gilbert, Donald R. Griffis, Daniel J. McDonald, David R. Mills | 2007-06-05 |
| 7171213 | Method for operating in a 800 MHz trunked radio communications system for channels 440 to 559 | John M. Gilbert, Daniel J. McDonald, Christopher H. Wilson | 2007-01-30 |
| 7136664 | Method for determining a control channel in a trunked radio communications system utilizing a scan list | Marc W. Cassidy, Andor Almasi | 2006-11-14 |
| 7096013 | Method for operating in an 800 MHz trunked radio communications system by mapping channels to frequencies | Daniel J. McDonald, Christopher H. Wilson | 2006-08-22 |
| 7089026 | Method for determining a control channel in a trunked radio communications system | Marc W. Cassidy, Andor Almasi, Donald R. Griffis | 2006-08-08 |
| 7085573 | Method for operating in a 800 MHz trunked radio communications system for channels 0 to 119 | Daniel J. McDonald, Christopher H. Wilson | 2006-08-01 |