Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5806998 | Check writing machine | Robert P. Koper | 1998-09-15 |
| 5775217 | Check writing machine having an inked ribbon | Robert P. Koper | 1998-07-07 |
| 5743181 | Check writing machine | Robert P. Koper | 1998-04-28 |
| 5611273 | Check writing machine | Robert P. Koper | 1997-03-18 |
| 5292283 | Money order imprinter | Robert P. Koper | 1994-03-08 |
| 5086697 | Inked ribbon cartridge for money order imprinter | Robert P. Koper | 1992-02-11 |
| 4995315 | Money order imprinter | Robert P. Koper | 1991-02-26 |