Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4727017 | Substituted triazolopyrimidines and their use in light-sensitive photographic elements | Robert J. Pollet, Hendrik E. Kokelenberg, Piet Kok | 1988-02-23 |
| 4451555 | Antifogging compounds and their use in silver halide photography | Robert J. Pollet, Roger A. Spriet | 1984-05-29 |
| 4307175 | Photographic silver halide emulsion material containing an antifoggant precursor | Robert J. Pollet, Hendrik E. Kokelenberg | 1981-12-22 |
| 4269923 | Photographic imaging process and materials suitable therefor | Raymond Roosen, Robert J. Pollet | 1981-05-26 |