Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7933608 | Methods, systems, and computer program products for providing presence gateway functionality in a telecommunications network | Aziz A. Tejani, Richard E. Schaedler, Venkataramaiah Ravishankar, Joe E Defenderfer, Patricia A. Baldwin +1 more | 2011-04-26 |
| 7146181 | Methods and systems for delivering presence information regarding push-to-talk subscribers | Richard E. Schaedler, Aziz A. Tejani, Richard Nolan Kennedy, Jr. | 2006-12-05 |
| 6735441 | Methods and systems for providing mobile telecommunications network services in a routing node | Joseph Turgeon, Chester C. Fennell, Jr., Byron C. Bagaasen, Peter J. Marsico | 2004-05-11 |