Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6650734 | System and method for automatic collect messaging on collect call restricted telephone numbers | Suzette Drouillard, Carol Eversen, Amit Garg, Rajeev B. Patil | 2003-11-18 |
| 5818919 | Inter-network call forwarding with subscriber identity | Edward Charles Berberich, Jr., Siang Gek Heng, Susan Lee, Maura Elizabeth Marcus, John Richard Rosenberg +1 more | 1998-10-06 |