Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D305643 | Combined credit card authorization terminal and flatbed credit card imprinter | David A. Stark | 1990-01-23 |
| D298944 | Credit card authorization/data capture terminal | David A. Stark | 1988-12-13 |
| D298626 | Combined credit card authorization terminal and raised credit card imprinter | David A. Stark | 1988-11-22 |