Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5146067 | Prepayment metering system using encoded purchase cards from multiple locations | Harry P. Snyder, Joseph W. Foster, Mark C. Day, Timothy G. Berg, Michael Jarreau +2 more | 1992-09-08 |
| 4731575 | Prepayment metering system using encoded purchase cards | — | 1988-03-15 |