Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8855315 | Method and system for realizing secure forking call session in IP multimedia subsystem | Tian Tian, Yinxing Wei, Zhimeng Teng | 2014-10-07 |
| 8705745 | Method and system for transmitting deferred media information in an IP multimedia subsystem | Tian Tian, Yinxing Wei, Zhimeng Teng | 2014-04-22 |
| 8565382 | Method for obtaining information of key management server, and method, system and device for monitoring | Tian Tian, Yinxing Wei, Feng Gao | 2013-10-22 |