Inventor
SCHELLENBERG MATTHIAS
9 patents
Patents
9 patentsUS4138256AFeb 6, 1979
Method of processing photographic silver dye bleach materials
CIBA GEIGY AG7 citations71
US3963492AJun 15, 1976
Method for processing silver dye bleach materials
CIBA GEIGY AG9 citations71
US4186008AJan 29, 1980
Method for processing silver dye-bleach materials
CIBA GEIGY AG7 citations64
US4357280ANov 2, 1982
Use of tertiary phosphines in photographic silver dye bleach materials
CIBA GEIGY AG2 citations60
US3961958AJun 8, 1976
Process for fixing photographic material
CIBA GEIGY AG2 citations60
US3957516AMay 18, 1976
Preparation for the processing of photographic materials
CIBA GEIGY AG2 citations60
US4271254AJun 2, 1981
Process for producing photographic images
CIBA GEIGY AG3 citations56
US4803151AFeb 7, 1989
Photographic material for the silver dye bleach process comprising an AZO dye, capable of laking, in gelatine
CIBA GEIGY AG1 citations51
US4014699AMar 29, 1977
Preparation for the processing of photographic materials
CIBA GEIGY AG1 citations50