Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879198 | Magnetic carrier particles | Joannes J. Van Beek, Pierre L. van Daele | 1989-11-07 |
| 4853311 | Fusible electrostatically attractable toner | August M. Marien, Herman Uytterhoeven | 1989-08-01 |
| 4842972 | Process for image production containing the heat-and-pressure fixing of a still wet or moist toner image | William Waterschoot, Robert Overmeer | 1989-06-27 |