Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889560 | Phase change ink composition and phase change ink produced therefrom | Donald R. Titterington, Hu P. Le, Jeffrey J. Sopko | 1989-12-26 |
| 4613875 | Air assisted ink jet head with projecting internal ink drop-forming orifice outlet | Hue P. Le, James C. Oswald | 1986-09-23 |
| 4503111 | Hydrophobic substrate with coating receptive to inks | Donald R. Titterington, Le P. Hue | 1985-03-05 |