Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10079900 | Techniques to manage presence information | Thomas Bouchard, Eran Shtiegman | 2018-09-18 |
| 9723458 | Push-to-talk telecommunications system utilizing an voice-over-IP network | Robert E. Denman, Barbara Derryberry | 2017-08-01 |
| 9014742 | Push-to-talk telecommunications system utilizing an voice-over-IP network | Robert E. Denman, Barbara Derryberry | 2015-04-21 |
| 8694041 | Push-to-talk telecommunications system utilizing an voice-over-IP network | Robert E. Denman, Barbara Derryberry | 2014-04-08 |
| 8447341 | Push-to-talk telecommunications system utilizing a voice-over-IP network | Robert E. Denman, Barbara Derryberry | 2013-05-21 |
| 8428237 | Push-to-talk wireless telecommunications system utilizing a voice-over-IP network | Robert E. Denman, Barbara Derryberry | 2013-04-23 |
| 8423045 | Location-based presence automation | — | 2013-04-16 |
| 8351913 | Merging call notifications in cross ringing systems | Rajesh Ramanathan, Pradipta Kumar Basu, Amritansh Raghav, Nikhil Bobde | 2013-01-08 |
| 8250147 | Remote call control and conferencing using paired devices | Rajesh Ramanathan, Adrian Potra, Vinit Deshpande, Ankit Tandon, Stephen H. Houchen +3 more | 2012-08-21 |
| 8238922 | Location-based address normalization | — | 2012-08-07 |
| 8213408 | Providing security in a multimedia network | Michael Flynn Thomas, Robert E. Denman | 2012-07-03 |
| 8054761 | Providing security between network elements in a network | Michael Flynn Thomas, Robert E. Denman | 2011-11-08 |
| 7826603 | Push-to-talk wireless telecommunications system utilizing a voice-over-IP network | Robert E. Denman, Barbara Derryberry | 2010-11-02 |
| 7801953 | Push-to-talk wireless telecommunications system utilizing an voice-over-IP network | Robert E. Denman, Barbara Derryberry | 2010-09-21 |
| 7170863 | Push-to-talk wireless telecommunications system utilizing a voice-over-IP network | Robert E. Denman, Barbara Derryberry | 2007-01-30 |