| 4859565 |
Diffusion transfer reversal process |
Rene De Keyzer, Leon L. Vermeulen |
1989-08-22 |
| 4756990 |
Method of effecting high contrast development of an image-wise exposed photographic silver halide emulsion layer material |
Richard A. Ooms |
1988-07-12 |
| 4727017 |
Substituted triazolopyrimidines and their use in light-sensitive photographic elements |
Antoon L. Vandenberghe, Hendrik E. Kokelenberg, Piet Kok |
1988-02-23 |
| 4720447 |
Silver salt diffusion transfer reversal process |
Rene De Keyzer, Leon L. Vermeulen |
1988-01-19 |
| 4600552 |
Stripping aids for cellulose ester film |
Francis J. Sels, Josephus F. Paulussen |
1986-07-15 |
| 4451555 |
Antifogging compounds and their use in silver halide photography |
Antoon L. Vandenberghe, Roger A. Spriet |
1984-05-29 |
| 4307175 |
Photographic silver halide emulsion material containing an antifoggant precursor |
Hendrik E. Kokelenberg, Antoon L. Vandenberghe |
1981-12-22 |
| 4292400 |
Photographic silver halide development in the presence of thioether development activators |
Francis J. Sels, Karel A. Brems, Maurice A. de Ramaix |
1981-09-29 |
| 4292402 |
Light-sensitive silver halide materials containing fluorine-containing surfactants |
Hendrik E. Kokelenberg, Rafael P. Samijn, Francis J. Sels, Frans J. Ville, Nikolaas C. de Jaeger |
1981-09-29 |
| 4269923 |
Photographic imaging process and materials suitable therefor |
Raymond Roosen, Antoon L. Vandenberghe |
1981-05-26 |
| 4202695 |
Photographic Lippmann emulsions |
Herman A. Philippaerts, Wolfgang Muller-Bardorff, Wilhelm Saleck, Anita von Konig, Walter Gauss +2 more |
1980-05-13 |
| 4201585 |
Photographic bleach compositions containing bleach-accelerating compounds |
Camille Angelina Vandeputte, Francis J. Sels, George F. Van Veelen |
1980-05-06 |
| 4186012 |
Light sensitive color photographic material containing development inhibitor releasing coupler |
Heinrich Odenwalder, Walter Puschel, Erwin Ranz |
1980-01-29 |