Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6222640 | Copying apparatus having adjustable gradation | Petrus A. M. Cornelissen, Romeo M. Van Strijp, Cornelis A. W. Ophelders | 2001-04-24 |
| 5032853 | Method of and apparatus for forming a multi-color image | Johannes G. V. van Stiphout, Martinus J. Huijben, Jacobus H. M. Schonenberg, Martin Lluis Bakker | 1991-07-16 |
| 4607947 | Contact fixing and cleaning method and apparatus | Hendrik Ensing | 1986-08-26 |