Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5163086 | Telephone network credit card calling apparatus and method of operation to determine validation and fraudulent use of credit cards in placing telephone calls | Nandakishore A. Albal, Daniel D. Cottrell, V., Richard Harris, Julie M. Ladieu-Walton, Hamid C. Razavi | 1992-11-10 |