Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5012738 | Printing plate locking device | — | 1991-05-07 |
| 4638758 | Capped printing plate making machine | — | 1987-01-27 |
| 4450226 | Method and apparatus for producing a printing plate | — | 1984-05-22 |
| 4403566 | Apparatus for producing a printing plate | — | 1983-09-13 |
| 4383759 | Method and apparatus for producing a capped printing plate | Norman E. Hughes | 1983-05-17 |