Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4342825 | Photographic elements containing cyan-forming color couplers | Raphael K. Van Poucke, Jan J. Vandewalle | 1982-08-03 |
| 4341864 | Photographic elements containing cyan-forming couplers | Jan J. Vandewalle, Raphael K. Van Poucke | 1982-07-27 |
| 4340664 | Copolymer latex and photographic silver halide materials containing such latex | Walter F. De Winter, Raphael K. Van Poucke | 1982-07-20 |