Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5300973 | Track image registration system | Daniel L. Cooke, Willard J. Harder | 1994-04-05 |
| 5255052 | Image control board | Willard J. Harder | 1993-10-19 |
| 5205039 | Method for registering multiple printing plates | — | 1993-04-27 |