Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8326273 | System and method for playing a color ring back tone based on the called user's state presence information | Guoqiang Shang, Jin Sun | 2012-12-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8326273 | System and method for playing a color ring back tone based on the called user's state presence information | Guoqiang Shang, Jin Sun | 2012-12-04 |