Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6078655 | Automatic international reattempt method and apparatus | Shubert A. Hau, A Helen McGrath, Christine Patricia Peterson | 2000-06-20 |
| 6038307 | International redial system driven by unsuccessful call reasons | Shubert A. Hau, A Helen McGrath, Alan B. Moshinsky, Johan Adriaan Oudmaijer, Christine Patricia Peterson | 2000-03-14 |
| 5694459 | Personalized information service system | Marjorie S. Backaus, Claire Darcelle Barrera, Esther L. Davenport, Barry Norman Ostroff, Robert Petrelli +1 more | 1997-12-02 |
| 5459779 | Method for switching telephone calls to information service providers | Marjorie S. Backaus, John J. Butz, Ali M. Cherchali, Esther L. Davenport, Kathleen A. Misdea +1 more | 1995-10-17 |
| 5444713 | Telephone information service system using digital and out-of-band signaling | Marjorie S. Backaus, Claire Darcelle Barrera, Esther L. Davenport, Barry Norman Ostroff, Robert Petrelli +1 more | 1995-08-22 |