Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7505406 | Public telephone control with voice over internet protocol transmission | Thomas R. Spadaro, Martin L. Knodle, Fredrick Miller, Amr E. Abdelwahab | 2009-03-17 |
| 5768355 | Three-way call detection system | Kishan Shenoi, Thomas R. Spadaro, Michael Jaeger | 1998-06-16 |