Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5418557 | Drop quality control system for jet printing | — | 1995-05-23 |
| 5039997 | Impact-valve printhead for ink jet printing | Robert I. Keur, Gerry B. Andeen | 1991-08-13 |
| 4555712 | Ink drop velocity control system | George Arway, Frank Eremity, George H. Dick | 1985-11-26 |
| 4384295 | Liquid jet printing apparatus using a raster of drops to effect printing | John Lewis, Michael R. Keeling, Graham Dagnall Martin | 1983-05-17 |