Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7054302 | Method and apparatus for interworking dispatch services network | Nandakishore A. Albal, Peter J. Armbruster, Thomas Hallin, Bradley Schaefer, Mark L. Shaughnessy +2 more | 2006-05-30 |
| 6976081 | Session initiation protocol compression | Peter J. Armbruster, Bradley Schaefer, Mark L. Shaughnessy | 2005-12-13 |
| 6904023 | Method and apparatus for group call services | Nandakishore A. Albal, Peter J. Armbruster, Thomas Hallin, Derek Oxley, William N. Shores +1 more | 2005-06-07 |
| 6553208 | Methods and apparatus for using ground based processing resources to support orbiting satellites | Bradley Schaefer, James P. Redden | 2003-04-22 |
| 6272345 | Method and apparatus for region based hand-offs in a satellite communication system | Craig Long, Ernest Earl Woodward | 2001-08-07 |
| 6240074 | Secure communication hub and method of secure data communication | Ronald V. Chandos, David M. Harrison | 2001-05-29 |
| 6173176 | Method for sector-based routing | Craig Long | 2001-01-09 |
| 6173156 | Global message delivery system and method using GEO and Non-GEO satellites | Gerald Hogg, James Greenwood | 2001-01-09 |
| 5940508 | Method and apparatus for seamless crypto rekey system | Craig Long, Bradley Schaefer | 1999-08-17 |
| 5664113 | Working asset management system and method | Roman Casimir Lopatynski, Steven Peter Allen, Gerald V. Piosenka | 1997-09-02 |
| 5239497 | Fast pattern correlator and method | Brent M. McKay, Carl Grube | 1993-08-24 |
| 4944008 | Electronic keying scheme for locking data | Gerald V. Piosenka, Michael A. Savage | 1990-07-24 |
| 4866713 | Operational function checking method and device for microprocessors | Gerald V. Piosenka | 1989-09-12 |