Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D314209 | Ink-jet print cartridge | Donald R. McClelland, John H. Dion, Niels J. Nielsen, J. Paul Harmon | 1991-01-29 |
| 4528577 | Ink jet orifice plate having integral separators | Frank L. Cloutier, Paul H. McClelland, Niels J. Nielsen | 1985-07-09 |
| 4509062 | Ink reservoir with essentially constant negative back pressure | Frank L. Cloutier, Gary L. Siewell | 1985-04-02 |
| 4500895 | Disposable ink jet head | Roy T. Buck, Frank L. Cloutier, R. Ernst Erni, F. Duncan Terry | 1985-02-19 |
| 4438191 | Monolithic ink jet print head | Frank L. Cloutier, Paul H. McClelland | 1984-03-20 |