Inventor
TSCHOPP PAUL
15 patents
Patents
15 patentsUS4118232AOct 3, 1978
Photographic material containing sulphonic acid group containing disazo dyestuffs
CIBA GEIGY AG42 citations90
US4051123ASep 27, 1977
Sulfonic-acid-group containing disazo dyestuffs
CIBA GEIGY AG29 citations80
US4661440AApr 28, 1987
Process for stabilizing photographic material containing magenta coupler
CIBA GEIGY AG7 citations73
US4661437AApr 28, 1987
Photographic material with heterocylic azo dye for the silver dye bleach process
CIBA GEIGY AG6 citations73
US4268591AMay 19, 1981
Material for color photography
CIBA GEIGY AG14 citations73
US4026709AMay 31, 1977
Color photographic recording material
CIBA GEIGY AG13 citations70
US3984432AOct 5, 1976
Color photographic recording material
CIBA GEIGY AG7 citations70
US4743683AMay 10, 1988
Imidazole azo dyes
CIBA GEIGY AG1 citations62
US4732997AMar 22, 1988
Dibenzoxaphosphorin compounds
CIBA GEIGY AG2 citations62
US4268592AMay 19, 1981
Material for color photography
CIBA GEIGY AG2 citations62
US4115121ASep 19, 1978
Silver halide color photographic material containing yellow coupler
CIBA GEIGY AG5 citations62
US3931142AJan 6, 1976
Heterocyclic containing disazo compounds
CIBA GEIGY AG4 citations57
US4324898AApr 13, 1982
Heterocyclic compounds useful as color photographic material
CIBA GEIGY AG0 citations51
US4229577AOct 21, 1980
Yellow photographic color couplers containing 3-imino-1,3,4-thiadiazolyl-4 groups
CIBA GEIGY AG0 citations51
US4206278AJun 3, 1980
Color photographic material
CIBA GEIGY AG0 citations51