Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8442211 | Method and system for providing a ring back tone in a communication network | — | 2013-05-14 |
| 8355756 | Service processing method, communication system and relevant devices | Ruinan Sun, Wenjie Zhu | 2013-01-15 |
| 7940909 | Method and system for rewarding ring back tone, donor platform, and custom ring back tone platform | — | 2011-05-10 |