Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6405032 | System and method for retrieving messages from a voice message system | — | 2002-06-11 |
| 6373931 | Method for allowing a called party to allocate call payment responsibility | Umesh J. Amin | 2002-04-16 |