Issued Patents All Time
Showing 51–73 of 73 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814255 | Mordanting polymers for acid dyes | Luc Vanmaele | 1989-03-21 |
| 4777124 | Azo dye compounds for use in a dye diffusion transfer process and photographic elements incorporating them | Luc Vanmaele, Christian C. Van de Sande, Hans Vetter | 1988-10-11 |
| 4605613 | Ballasted dye compounds with linkages containing three aromatic nuclei for use in a dye diffusion transfer process and element | Christian C. Van de Sande, Armand M. Van den Bergh, Hans Vetter | 1986-08-12 |
| D280970 | Can-opener | Jan F. Van Asten | 1985-10-15 |
| 4537853 | Photographic silver halide material containing a ballasted electron-donor precursor compound | Christian C. Van de Sande, Andre Verhecken | 1985-08-27 |
| D279858 | Mixer stand | — | 1985-07-30 |
| 4514494 | Photographic color material incorporating developing agents for color development | Raymond Gerard Lemahieu | 1985-04-30 |
| 4496645 | Process for the production of a photographic color image by image-wise dye diffusion transfer | Daniel A. Claeys | 1985-01-29 |
| 4483915 | Azo dye releasing compounds with hydrolytic removable group for dye diffusion transfer process | Christian C. Van de Sande, Armand M. Van den Bergh | 1984-11-20 |
| 4458002 | Method and materials for improving the color balance of photographic multicolor images using contact screen | Christiaan G. Thiers, Wilfried F. Liekens | 1984-07-03 |
| 4423142 | Photographic silver halide color materials and process for the production of dye images by diffusion transfer | — | 1983-12-27 |
| 4396699 | Process for the production of a multicolor image by image-wise dye diffusion transfer | Daniel A. Claeys | 1983-08-02 |
| 4391047 | Hand-held hair dryer | Heinz Merges | 1983-07-05 |
| 4371604 | Photographic material suited for use in diffusion transfer photography | Christian C. Van de Sande, Wolfgang Lassig, Ernst Meier | 1983-02-01 |
| 4360581 | Color photographic recording material containing non-diffusing electron donor compounds | Heinrich Odenwalder, Hans Vetter, Jan Jaeken | 1982-11-23 |
| 4353975 | Dye-diffusion transfer process | Daniel A. Claeys | 1982-10-12 |
| D262061 | Hair dryer | — | 1981-11-24 |
| 4288522 | Non-photosensitive receptor material suited for producing black-and-white silver images and dye images and a process for the production of such images therewith | Frans Carael, Daniel A. Claeys | 1981-09-08 |
| 4269924 | Photographic material suited for the production of multicolor images by means of diffusion transfer of complexed silver halide | Alphonse Somers, Daniel A. Claeys | 1981-05-26 |
| 4232107 | Photographic material suited for use in diffusion transfer photography and method of diffusion transfer photography using such material | — | 1980-11-04 |
| 4220710 | Photosensitive recording materials | Frans C. Heugebaert, Hendrik E. Kokelenberg | 1980-09-02 |
| D256170 | Hair curling tong | — | 1980-07-29 |
| 4203765 | Etch bleaching liquid with iron(III)ions | Danie A. Claeys, Albert A. Reyniers | 1980-05-20 |