Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5754930 | Fluidized toner development using a rigid porous donor roll | P. Keith Watson | 1998-05-19 |
| 5021838 | Preferred toner/carrier properties | Delmer G. Parker, William Maxwell Allen, Jr. | 1991-06-04 |
| 4998139 | Adaptive bias control for tri-level xerography | Jerome E. May, Delmer G. Parker | 1991-03-05 |
| 4990955 | White level stabilization for tri-level imaging | Jerome E. May, Delmer G. Parker | 1991-02-05 |
| 4868608 | Highlight color imaging apparatus | William Maxwell Allen, Jr., Delmer G. Parker | 1989-09-19 |
| 4761668 | Highlight color printer | Delmer G. Parker | 1988-08-02 |
| 4731634 | Apparatus for printing black and plural highlight color images in a single pass | — | 1988-03-15 |