Inventor
OEHLSCHLAEGER HANS
DE30 patents
⚠️ This page may combine multiple inventors who share the name “OEHLSCHLAEGER HANS”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AGFA GEVAERT AG
28 patentsUS4749643AJun 7, 1988
Photographic recording element containing a UV absorbent and a silver halide emulsion layer
AGFA GEVAERT AG75 citations96
US4543308ASep 24, 1985
Photographic recording process
AGFA GEVAERT AG38 citations91
US4579816AApr 1, 1986
Yellow DIR coupler with 5-furyl(1,2,4-triazole) coupling off group
AGFA GEVAERT AG25 citations78
US4459130AJul 10, 1984
Solid preparation of water-soluble acid dye and polymer particles with quaternary ammonium or phosphonium groups
AGFA GEVAERT AG9 citations74
US4379838AApr 12, 1983
Photosensitive photographic recording material comprising a dyed layer
AGFA GEVAERT AG16 citations74
US4229526AOct 21, 1980
Light-sensitive photographic recording material
AGFA GEVAERT AG9 citations74
US4985351AJan 15, 1991
Photographic recording material
AGFA GEVAERT AG11 citations73
US4840890AJun 20, 1989
Hardened proteinic binder layer
AGFA GEVAERT AG6 citations73
US4833070AMay 23, 1989
Color photographic recording material containing a yellow DIR coupler
AGFA GEVAERT AG11 citations73
US4840871AJun 20, 1989
Color photographic heat development process
AGFA GEVAERT AG9 citations72
US4458009AJul 3, 1984
Process for the production of color photographic images and photographic recording materials
AGFA GEVAERT AG10 citations72
US4760015AJul 26, 1988
Stabilization of a photographically produced silver image using an amino-1,2,4-triazole
AGFA GEVAERT AG7 citations71
US4894324AJan 16, 1990
Hardeners for proteins, a layer of binder hardened therewith and a photographic recording material containing such a layer
AGFA GEVAERT AG9 citations70
US5089381AFeb 18, 1992
Silver halide recording material
AGFA GEVAERT AG2 citations63
US5427904AJun 27, 1995
Process for the preparation of silver halide emulsions
AGFA GEVAERT AG2 citations62
US5158864AOct 27, 1992
Color photographic material
AGFA GEVAERT AG4 citations62
US4906557AMar 6, 1990
Photographic recording material and process for the production of photographic images
AGFA GEVAERT AG4 citations62
US4840880AJun 20, 1989
Color photographic recording material containing a yellow DIR coupler
AGFA GEVAERT AG6 citations62
US4689286AAug 25, 1987
Color photographic recording material developable by heat treatment
AGFA GEVAERT AG6 citations62
US5374505ADec 20, 1994
Color photographic recording material for the production of color images
AGFA GEVAERT AG3 citations59
US4804623AFeb 14, 1989
Photographic recording material, a process for the production of photographic images and new triazoles
AGFA GEVAERT AG1 citations52
US4366221ADec 28, 1982
Photographic recording material and new merocyanines
AGFA GEVAERT AG1 citations52
US5665532ASep 9, 1997
Black and white paper with variable gradation
AGFA GEVAERT AG1 citations51
US5407789AApr 18, 1995
Photographic recording material
AGFA GEVAERT AG0 citations51
US4276373AJun 30, 1981
Photosensitive photographic material containing a light-absorbing dye
AGFA GEVAERT AG1 citations51
US5888709AMar 30, 1999
Photographic recording material
AGFA GEVAERT AG0 citations50
US5006440AApr 9, 1991
Process for stabilizing photographic silver images
AGFA GEVAERT AG1 citations50
US4810627AMar 7, 1989
Photographic recording material
AGFA GEVAERT AG0 citations48