Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870259 | Transaction approval system | Carl M. Campbell | 1989-09-26 |
| 4822985 | Transaction approval system | Carl M. Campbell | 1989-04-18 |
| 4812628 | Transaction system with off-line risk assessment | Vincent Boston, Einar L. Asbo | 1989-03-14 |