Issued Patents All Time
Showing 1–25 of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8194572 | Method and apparatus for increasing performance of a wireless communication system | Robert Horvath, Troy Dixler | 2012-06-05 |
| 8180358 | Joining a session in a communication network supporting multimedia group calls | Rod N. Averbuch | 2012-05-15 |
| 7711382 | Method for dynamic group call | Derek Oxley, Nandakishore A. Albal, Gustavo A. Leal-Isla, Bradley Schaefer | 2010-05-04 |
| 7231223 | Push-to-talk call setup for a mobile packet data dispatch network | Nigel May, Mark A. Marick, Bradley Schaefer, William J. Sugden | 2007-06-12 |
| 7103011 | Use of IP-multicast technology for 2-party calls in mobile communication networks | Surender Kumar, James E. Mathis, Gregory A. Dertz, Michael D. Sasuta | 2006-09-05 |
| 7054302 | Method and apparatus for interworking dispatch services network | Nandakishore A. Albal, Peter J. Armbruster, Thomas Hallin, Bradley Schaefer, Steven D. Upp +2 more | 2006-05-30 |
| 7016315 | Token passing arrangement for a conference call bridge arrangement | Peter J. Armbruster, Bradley Schaefer | 2006-03-21 |
| 7002987 | Common services and applications agent | Peter J. Armbruster, Bradley Schaefer | 2006-02-21 |
| 6999782 | Method for joining dispatch calls | Peter J. Armbruster, James Krakora, Bradley Schaefer, William N. Shores | 2006-02-14 |
| 6990081 | Conference call bridge arrangement | Bradley Schaefer, Peter J. Armbruster | 2006-01-24 |
| 6976081 | Session initiation protocol compression | William R. Worger, Peter J. Armbruster, Bradley Schaefer | 2005-12-13 |
| 6973325 | Temporary block flow allocation method | Bradley Schaefer, John M. Harris | 2005-12-06 |
| 6930997 | Method and apparatus for processing services in communication system | Michael D. Sasuta, Daniel J. McDonald | 2005-08-16 |
| 6697349 | System and methods for distributed connection and mobility processing in a multicast IP network incorporating multi-cell location areas | James E. Mathis, Surender Kumar | 2004-02-24 |
| 6597919 | Optimal radio channel allocation in a distributed connection and transport network | Surender Kumar, James E. Mathis, Bhavesh Govindbhai Patel, Gary Aitkenhead | 2003-07-22 |
| 6253091 | Method and apparatus for establishing dynamic group communications | Marc C. Naddell, Gary W. Grube | 2001-06-26 |
| 6148204 | Method and apparatus for a distributed location register | Kamala D. Urs, Michael D. Sasuta | 2000-11-14 |
| 6141347 | Wireless communication system incorporating multicast addressing and method for use | James E. Mathis, Surender Kumar, Bhavesh Govindbhai Patel, Mario F. DeRango | 2000-10-31 |
| 6134446 | Method and apparatus for subscriber unit location updating | Michael D. Sasuta, Kamala D. Urs | 2000-10-17 |
| 6041226 | Method and apparatus for monitoring subscriber talk-around usage | John Skoro, Brian K. Bunkenburg | 2000-03-21 |
| 6031455 | Method and apparatus for monitoring environmental conditions in a communication system | Gary W. Grube, Marc C. Naddell | 2000-02-29 |
| 5987331 | Communication system to communication system gateway method and apparatus | Gary W. Grube, Steven E. Norwood, William A. Felderman | 1999-11-16 |
| 5966659 | Service request rooting by a local resource controller | Daniel J. McDonald, Steven E. Norwood | 1999-10-12 |
| 5940768 | Infrastructure transceiver and method for configuration based on RF operating circumstances | Stuart W. Thro, Michael D. Kotzin | 1999-08-17 |
| 5928325 | Method of dynamically establishing communication of incoming messages to one or more user devices presently available to an intended recipient | Michael D. Kotzin, Lester F. Eastwood, Jr., Gary W. Grube | 1999-07-27 |