Inventor
KOK PIET
BE19 patents
Patents
19 patentsUS4727017AFeb 23, 1988
Substituted triazolopyrimidines and their use in light-sensitive photographic elements
AGFA GEVAERT NV20 citations80
US5439791AAug 8, 1995
Modified gelatin types and hydrophilic elements containing them
AGFA GEVAERT NV8 citations73
US4988600AJan 29, 1991
Particulate electrophotographic toner material
AGFA GEVAERT NV13 citations73
US5474885ADec 12, 1995
Type of modified gelatin and its use in a DTR material
AGFA GEVAERT NV6 citations72
US5141843AAug 25, 1992
Developer liquid for high contrast development
AGFA GEVAERT NV7 citations72
US4762759AAug 9, 1988
Image-receiving material with siloxane, colloidal silica and gelatin for silver complex diffusion transfer
AGFA GEVAERT NV9 citations72
US5156940AOct 20, 1992
Photographic stabilizers with 1-phenyl-3-pyrazolidinone moieties
AGFA GEVAERT NV8 citations71
US4820608AApr 11, 1989
Dye diffusion transfer imaging process and image receptor used therein
AGFA GEVAERT NV8 citations71
US5536817AJul 16, 1996
Type of modified gelatin and its use in a DTR material
AGFA GEVAERT NV4 citations61
US5043245AAug 27, 1991
Process for the production of a laminated article
AGFA GEVAERT NV2 citations61
US4908286AMar 13, 1990
Image-receiving material for use in diffusion transfer reversal
AGFA GEVAERT NV4 citations61
US4902593AFeb 20, 1990
Dye image receiving material
AGFA GEVAERT NV6 citations61
US5236815AAug 17, 1993
Class of masked stabilizers in photographic materials or developing solutions
AGFA GEVAERT NV5 citations60
US5206123AApr 27, 1993
High contrast developer containing an aprotic solvent
AGFA GEVAERT NV4 citations60
US5013628AMay 7, 1991
Particulate toner material with charge control agent
AGFA GEVAERT NV4 citations58
US5254443AOct 19, 1993
Photographic direct positive material containing a masked benzotriazole stabilizer
AGFA GEVAERT NV1 citations51
US5155014AOct 13, 1992
Method of developing direct positive silver halide material
AGFA GEVAERT NV1 citations46
US5073480ADec 17, 1991
Quick acting hardener for photographic gelatin layers
AGFA GEVAERT NV1 citations42
US4748108AMay 31, 1988
Yellow dye-releasing azo compounds for use in the production of diffusion transfer color images
AGFA GEVAERT NV0 citations41