Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5760381 | Prepaid card | Rebecca Stich, Douglas Ramsburg, Ginger A. Rice, John L. Wantz, Don Dalgauer | 1998-06-02 |
| 5667247 | Telephone debit card production | E. Douglas Ramsburg, Dennis V. Zutant | 1997-09-16 |