Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7367516 | Decontamination liquid spraying appliance | Oliver Zeitner | 2008-05-06 |
| 6041770 | Bi-metallic control device | — | 2000-03-28 |
| 5751321 | Continuous ink refill system for disposable ink jet cartridges having a predetermined ink capacity | — | 1998-05-12 |
| 5629727 | Continuous ink refill system for disposable ink jet cartridges having a predetermined ink capacity | — | 1997-05-13 |
| 5539488 | Rotary shutter | David J. Shelander, Paul A. Richardson, John Evers | 1996-07-23 |
| 5369429 | Continuous ink refill system for disposable ink jet cartridges having a predetermined ink capacity | — | 1994-11-29 |
| 5243391 | Varying an electric field, during development of a latent electrostatic image with developer solution, in proportion to a sensed concentration of toner that is within the developer solution | Tony Williams, Stan Dorr | 1993-09-07 |