Inventor
FRYBERG MARIO
CH17 patents
⚠️ This page may combine multiple inventors who share the name “FRYBERG MARIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CIBA GEIGY AG
13 patentsUS4248961AFeb 3, 1981
Material for color photography
CIBA GEIGY AG31 citations90
US4379819AApr 12, 1983
Color-photographic recording material for the silver dye bleach process
CIBA GEIGY AG12 citations73
US4404273ASep 13, 1983
Process for the production of photographic color images by the silver dye bleach process
CIBA GEIGY AG8 citations71
US4359521ANov 16, 1982
Light-sensitive color photographic material
CIBA GEIGY AG9 citations71
US4568752AFeb 4, 1986
Recording material for color photography
CIBA GEIGY AG2 citations62
US4407935AOct 4, 1983
Photographic recording material
CIBA GEIGY AG3 citations62
US4238564ADec 9, 1980
Recording material for color photography
CIBA GEIGY AG3 citations62
US4115121ASep 19, 1978
Silver halide color photographic material containing yellow coupler
CIBA GEIGY AG5 citations62
US4465763AAug 14, 1984
Process for the production of photographic color images by the silver dye bleach process
CIBA GEIGY AG2 citations60
US4471048ASep 11, 1984
Photographic material
CIBA GEIGY AG2 citations58
US4576885AMar 18, 1986
Photographic material for the silver dye bleach process
CIBA GEIGY AG2 citations57
US4229577AOct 21, 1980
Yellow photographic color couplers containing 3-imino-1,3,4-thiadiazolyl-4 groups
CIBA GEIGY AG0 citations51
US4436811AMar 13, 1984
Photographic material
CIBA GEIGY AG1 citations48