Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5144328 | Method for producing an image on a substrate having the same spectral content with front and back illumination | Donald Redding | 1992-09-01 |
| 4700205 | Hydraulic servomechanism for controlling the pressure of writing fluid in an ink jet printing system | Leonard G. Rich | 1987-10-13 |
| 4651161 | Dynamically varying the pressure of fluid to an ink jet printer head | Leonard G. Rich | 1987-03-17 |