Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |
| 8170055 | Method of converting between radius message and diameter messages | Qiang Fang, Min Liu, Yile Enoch Wang, Ying Wang, Da Bin Yuan | 2012-05-01 |
| 7620384 | Converged service control for IMS networks and legacy networks | Yigang Cai, Sheng-Chang Chen, Xiangyang Li, Peng Wang, Jay Z. Zhao | 2009-11-17 |