Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4791666 | Automatic intercept system interface for electromechanical telephone central office | Douglas R. Cobb, Raymond C. Fields, Kenneth L. Cook | 1988-12-13 |
| 4389546 | Digital announcement system including remote loading and interrogation | Gerald Huber, Bruce L. Biskey | 1983-06-21 |