Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7573981 | Method and apparatus for improving premises-line call availability in an alarm system | Jeffry M. Hickey | 2009-08-11 |
| 6973165 | Method and apparatus for improving premises-line call availabiliy in an alarm system | Jeffrey Hickey | 2005-12-06 |
| 6825762 | Device for directing a premises alarm panel to a backup radio network upon detection of use of the PSTN by another premises device | Jeffrey Hickey, Joseph Campanelli | 2004-11-30 |
| 6615056 | Method and apparatus to protect fixed wireless terminal from foreign voltage at the tip and ring connection | Alvin Taylor, Fred Engelking, Louis W. Schornack | 2003-09-02 |
| 6324410 | Method and apparatus for interfacing a cellular fixed wireless terminal to the extension side of a PBX/PABX | Frederick S. Engelking, Rex Nathanson | 2001-11-27 |
| 6035220 | Method of determining end-of-dialing for cellular interface coupling a standard telephone to the cellular network | George Claudio, Jeffry M. Hickey, Fred Engelking, Paul William Douglas | 2000-03-07 |