Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5487107 | Method and apparatus for processing telephone calls charged to credit cards | Jean Atkins, Richard Harris, David C. McChristian | 1996-01-23 |
| 5313463 | ISDN credit checking | Angela R. Gore, Barbara Joanne Kittredge, Pamela J. Lauber | 1994-05-17 |
| 5287403 | Method and apparatus for processing telephone calls charged to credit cards | Jean Atkins, Richard Harris, David C. McChristian | 1994-02-15 |
| 5163086 | Telephone network credit card calling apparatus and method of operation to determine validation and fraudulent use of credit cards in placing telephone calls | Kathleen M. Ahearn, Nandakishore A. Albal, Daniel D. Cottrell, V., Richard Harris, Hamid C. Razavi | 1992-11-10 |