Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4959855 | Directory assistance call processing and calling customer remote signal monitoring arrangements | — | 1990-09-25 |
| 4943995 | Semi-automated customer information system | Ronald J. Hartnett, William A. O'Connell | 1990-07-24 |
| 4922519 | Automated operator assistance calls with voice processing | — | 1990-05-01 |
| 4918719 | Elimination of false requests for telephone operator assistance | — | 1990-04-17 |
| 4797910 | Automated operator assistance calls with voice processing | — | 1989-01-10 |