Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5621442 | Enhanced UU type ink jet printheads | Donald J. Hayes, David B. Wallace | 1997-04-15 |
| 5554247 | Method of manufacturing a high density ink jet printhead array | David B. Wallace, Donald J. Hayes | 1996-09-10 |
| 5506034 | Workpiece manufactured by a film coated passivation process | Donald J. Hayes | 1996-04-09 |
| 5481285 | Ink jet printhead manufactured by a film coated passivation process | Donald J. Hayes | 1996-01-02 |
| 5462600 | Apparatus for film coated passivation of ink channels in ink jet printhead | — | 1995-10-31 |
| 5433809 | Method of manufacturing a high density ink jet printhead | David B. Wallace, Donald J. Hayes | 1995-07-18 |
| 5406319 | Enhanced U type ink jet printheads | Donald J. Hayes, David B. Wallace | 1995-04-11 |
| 5402162 | Integrated multi-color ink jet printhead | Daniel R. Fusting, David B. Wallace, Donald J. Hayes | 1995-03-28 |
| 5400064 | High density ink jet printhead with double-U channel actuator | David B. Wallace, Donald J. Hayes | 1995-03-21 |
| 5334415 | Method and apparatus for film coated passivation of ink channels in ink jet printhead | Donald J. Hayes | 1994-08-02 |
| 5235352 | High density ink jet printhead | David B. Wallace, Donald J. Hayes | 1993-08-10 |
| 5227813 | Sidewall actuator for a high density ink jet printhead | David B. Wallace, Donald J. Hayes | 1993-07-13 |
| 5053100 | Method of making apparatus for dispensing small amounts of fluids | Donald J. Hayes | 1991-10-01 |