Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6442266 | Telephone system with call forwarding apparatus and method | — | 2002-08-27 |
| 6052438 | Method and apparatus for sending an announcement to caller | Qilin Huang | 2000-04-18 |
| 6038440 | Processing of emergency calls in wireless communications system with fraud protection | — | 2000-03-14 |
| 6031899 | Method and apparatus for identifying type of call | — | 2000-02-29 |
| 5872840 | Enhancement do not disturb subscriber feature within a telecommunications network | — | 1999-02-16 |