Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5341160 | Valve for ink-jet pen | Paul H. McClelland, Donald E. Wenzel | 1994-08-23 |
| 5168285 | Modal ink jet printing system | — | 1992-12-01 |
| 5039999 | Accumulator and pressure control for ink-ket pens | Bruce A. Anderson | 1991-08-13 |
| 4994824 | Modal ink jet printing system | — | 1991-02-19 |
| 4992802 | Method and apparatus for extending the environmental operating range of an ink jet print cartridge | John H. Dion | 1991-02-12 |