Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6819452 | Method and system for modifying portions of an image bit stream representing printing horizontal lines and edges to improve print quality | Dean Richtsmeier, David R. Larson, Bruce J. Jackson, Douglas G. Keithley | 2004-11-16 |
| 6693723 | Image forming device fast draft print mode | Douglas G. Keithley | 2004-02-17 |