Issued Patents All Time
Showing 26–45 of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7552670 | Mobile forced premature detonation of improvised explosive devices via wireless phone signaling | Richard E. Krock, Karl F. Rauscher, James P. Runyon | 2009-06-30 |
| 7536170 | Stationary forced premature detonation of improvised explosive devices via wireless phone signaling | Richard E. Krock, Karl F. Rauscher, James P. Runyon | 2009-05-19 |
| 7352847 | Optimized routing of VoIP emergency calls | Douglas Rollender | 2008-04-01 |
| 7146001 | Dynamic essential line service | — | 2006-12-05 |
| 7137002 | Differential authentication entity validation scheme for international emergency telephone service | — | 2006-11-14 |
| 7130384 | End user device supported emergency 9-1-1 function | Douglas Rollender | 2006-10-31 |
| 7058389 | Method for processing emergency calls initiated by wireless phones | Mary Chin, Douglas Rollender | 2006-06-06 |
| 6956857 | Guaranteed admission and incremental bandwidth allocation in a packet network | — | 2005-10-18 |
| 6807262 | Central office control of receive and transmit handset volume | — | 2004-10-19 |
| 6788777 | Alternative treatment for AIN fault handling | David J. Zwick | 2004-09-07 |
| 6493442 | AIN triggers to invoke non-AIN features | David J. Zwick | 2002-12-10 |
| 6487287 | Dynamic concentration of announcement circuits | — | 2002-11-26 |
| 4994422 | Microspheres coated with catalyst and methods of producing same | — | 1991-02-19 |
| 4844716 | Energy releasing catalyst and use thereof | Robert Pearson | 1989-07-04 |
| 4726014 | Cellular mobile radio service telephone system | Erik A. Lissakers, Matthew W. Thomson | 1988-02-16 |
| 4654879 | Cellular mobile radio subscriber location detection | Leonard Edward Bogan, Jr. | 1987-03-31 |
| 4608711 | Cellular mobile radio hand-off utilizing voice channel | — | 1986-08-26 |
| 4587652 | Data control for telephone system | — | 1986-05-06 |
| 4562572 | Cellular mobile radio service telephone system | Erik A. Lissakers, Matthew W. Thomson | 1985-12-31 |
| 4556760 | Hand-off filter for cellular mobile radio | — | 1985-12-03 |