Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8223753 | Apparatus for a terminal to access an IMS system and the method thereof | Gang Wang | 2012-07-17 |
| 7899043 | Route servicing device, method and system applying the device | Rujun Li, Ning Cheng, Haipeng Li | 2011-03-01 |
| 7675850 | Apparatus for realizing soft-switch allopatric disaster recovery based on packet network | Chen Wang, Rujun Li, Haipeng Li | 2010-03-09 |
| 7616953 | System and a method of realizing subscriber's foreign roaming service through the router | Haipeng Li | 2009-11-10 |