Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7019560 | High voltage level translator | David L. Knierim | 2006-03-28 |
| 5689288 | Ink level sensor | Richard S. Meissner, David L. Knierim | 1997-11-18 |
| 4893646 | Fluid pressure regulator | — | 1990-01-16 |
| 4885554 | Phase-offset signal generator | — | 1989-12-05 |
| 4727378 | Method and apparatus for purging an ink jet head | Hue P. Le, Jeffrey J. Anderson, Monte Rhoads, Ted E. Deur | 1988-02-23 |
| 4662622 | Air density adaptive vacuum controller | David B. Kreitlow | 1987-05-05 |
| 4574291 | Phase locked synchronizer for printer timing control | — | 1986-03-04 |
| 4560998 | Low voltage transformer coupled ink jet driver | — | 1985-12-24 |
| 4219767 | System and method of minimizing velocity fluctuations in a synchronous motor shaft | — | 1980-08-26 |
| 4196345 | Operating parameter selection and entry device | Douglas B. Bingham | 1980-04-01 |