Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9550464 | Active knee protection system | Vidyakant C. Revankar, Larry M. Wilmot, Ning Zhang | 2017-01-24 |
| 9365176 | Active lower leg engagement system | Vidyakant C. Revankar, Larry M. Wilmot, Mike Leschuk, James P. Karlow, Ning Zhang | 2016-06-14 |
| 8295456 | IMS budget control for a media change during an IMS session | Yigang Cai, Qinghong He, Ke Pei, Jie Su, Chaoliang Zhang | 2012-10-23 |
| 8228925 | Interactive voice response system for online and offline charging and for multiple networks | Yigang Cai, Sheng-Chang Chen, Xiang Li, Peng Wang, Ying Wang +1 more | 2012-07-24 |
| 7940904 | Converged offline charging and online charging | Yigang Cai, Xiang Li, Peng Wang | 2011-05-10 |
| 7620384 | Converged service control for IMS networks and legacy networks | Yigang Cai, Sheng-Chang Chen, Xiangyang Li, Peng Wang, Rui Yun Wu | 2009-11-17 |
| 7599478 | IMS gateway systems and methods for online charging in IMS networks | Yigang Cai, Xiang Li, Peng Wang | 2009-10-06 |
| 7548743 | Call control with converged application server logic and gateway logic in IMS networks | Yigang Cai, Xiang Li, Peng Wang | 2009-06-16 |
| 7170982 | Call authorization and billing message routing capability | Xiang Li, Min Liu, John B. Reid, Guy H. Starner, Ashish Trivedi +4 more | 2007-01-30 |
| 7010104 | Pre-biller capability in enhanced charging collection function (CCF) applications | Yigang Cai, Qing Hong He, Min Liu, John B. Reid, Ashish Trivedi +1 more | 2006-03-07 |