Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5172135 | Hot melt ink supply unit | Linda T. Creagh, Charles W. Spehrley, Jr., Nathan P. Hine, Jack B. MacDonald | 1992-12-15 |
| RE33783 | Document scanning system | Charles W. Spehrley, Jr., Gary W. Schneider, Curtis A. Lipkie | 1991-12-31 |
| 5003322 | Holt melt ink supply unit | Linda T. Creagh, Charles W. Spehrley, Jr., Nathan P. Hine, Jack B. MacDonald | 1991-03-26 |
| 4864330 | Method of forming a hot melt ink unit | Linda T. Creagh, Charles W. Spehrley, Jr., Nathan P. Hine, Jack B. MacDonald | 1989-09-05 |
| 4686581 | Document scanning system | Charles W. Spehrley, Jr., Gary W. Schneider, Curtis A. Lipkie | 1987-08-11 |
| 4544293 | Printer apparatus and cutting mechanism | Charles M. Myers | 1985-10-01 |
| 4367964 | Serial impact calculator printer with dual feed and validation mechanism | — | 1983-01-11 |