Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8804935 | Call establishment based on presence | Doree Duncan Seligmann, Reinhard Klemm, Ajita John | 2014-08-12 |
| 8176086 | Methods and apparatus for determining a presence of a user | Ajita John, Reinhard Klemm, Doree Duncan Seligmann | 2012-05-08 |
| 8068824 | Automated reconnection of interrupted voice call session | Raji Chinnappa | 2011-11-29 |
| 7925717 | Secure interaction between a mobile client device and an enterprise application in a communication system | Wu Chou, Juan Li | 2011-04-12 |
| 7734710 | Presence-based hybrid peer-to-peer communications | Doree Duncan Seligmann | 2010-06-08 |
| 7680480 | Determining user availability based on a past event | Ajita John, Reinhard Klemm, Doree Duncan Seligmann | 2010-03-16 |
| 7346168 | Method and apparatus for secure wireless delivery of converged services | Wu Chou, Juan Li, Feng Liu | 2008-03-18 |
| 7289788 | Mobile gateway for secure extension of enterprise services to mobile devices | — | 2007-10-30 |
| 7050792 | Voice message notification and retrieval via mobile client devices in a communication system | Wu Chou, Feng Liu, Stephen M. Milton, Doree Duncan Seligmann | 2006-05-23 |