Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6148064 | Method and apparatus for alerting a communication unit in a communication system | Laura A. Christensen, Kamala D. Urs, Anatoly S. Belkin, Robert L. Epsom, Sikendar Fidai | 2000-11-14 |
| 5850611 | Method and apparatus for communicating in a dispatch communication system | — | 1998-12-15 |
| 5822694 | Method and apparatus for providing communication services to a communication unit based on registration type | Daniel J. Coombes | 1998-10-13 |
| 5548631 | Method and apparatus for supporting at least two communication services in a communication system | Paul M. Erickson | 1996-08-20 |
| 5467398 | Method of messaging in a communication system | Jennifer Pierce, Louis D. Finkelstein, Daniel P. Brown | 1995-11-14 |
| 5448759 | Method for efficient bandwidth utilization when transceiving varying bandwidth messages | Gayle K. Haller | 1995-09-05 |
| 5271017 | Communications protocol using microslots | Timothy Wilson | 1993-12-14 |
| 5153878 | Radio data communications system with diverse signaling capability | — | 1992-10-06 |
| 5115233 | Shared data/voice communication system with programmable data priority | Kenneth J. Zdunek | 1992-05-19 |
| 4636791 | Data signalling system | Timothy M. Burke, Scott W. Noble, Thomas A. Freeburg | 1987-01-13 |
| 4590473 | Data signalling system | Timothy M. Burke, Scott W. Noble, Thomas A. Freeburg | 1986-05-20 |
| 4519068 | Method and apparatus for communicating variable length messages between a primary station and remote stations of a data communications system | Thomas A. Freeburg | 1985-05-21 |
| 4517669 | Method and apparatus for coding messages communicated between a primary station and remote stations of a data communications system | Thomas A. Freeburg | 1985-05-14 |