Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4827500 | Automatic speech recognition to select among call destinations | Christine M. Buss, George W. Gawrys, Roger E. Stone | 1989-05-02 |
| 4636584 | Signaling protocol channel unit | William C. Sand | 1987-01-13 |
| 4623760 | Signaling protocol interface channel unit | William C. Sand | 1986-11-18 |