Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5679938 | Methods and systems for interactive check authorizations | Gerald Gulden | 1997-10-21 |
| 5679940 | Transaction system with on/off line risk assessment | Gerald Gulden | 1997-10-21 |