Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5524181 | Method for changing color printing mode or substituting marking materials in a highlight color printing machine | Wilbert D. Douglas | 1996-06-04 |
| 5319464 | Scheduling color variations for discrete job elements | Wilbert D. Douglas | 1994-06-07 |
| 5281998 | Scheduling color variations for discrete job elements | Wilbert D. Douglas | 1994-01-25 |