Inventor
SOBEL JOHANNES
DE17 patents
⚠️ This page may combine multiple inventors who share the name “SOBEL JOHANNES”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AGFA GEVAERT AG
16 patentsUS4749643AJun 7, 1988
Photographic recording element containing a UV absorbent and a silver halide emulsion layer
AGFA GEVAERT AG75 citations96
US4942068AJul 17, 1990
Curtain coating process
AGFA GEVAERT AG19 citations80
US4943519AJul 24, 1990
Light sensitive, stabilized photographic recording material
AGFA GEVAERT AG18 citations74
US4349624ASep 14, 1982
Photographic silver halide material
AGFA GEVAERT AG8 citations74
US4338394AJul 6, 1982
Process for hardening photographic gelatin
AGFA GEVAERT AG7 citations74
US4323646AApr 6, 1982
Process for hardening a photographic material
AGFA GEVAERT AG8 citations74
US4840890AJun 20, 1989
Hardened proteinic binder layer
AGFA GEVAERT AG6 citations73
US4464464AAug 7, 1984
Color photographic recording material
AGFA GEVAERT AG10 citations73
US4339515AJul 13, 1982
Method of stabilizing color photographic materials and a color photographic material
AGFA GEVAERT AG15 citations73
US4330606AMay 18, 1982
Color photographic materials and color photographic images
AGFA GEVAERT AG13 citations73
US4003748AJan 18, 1977
Incorporation process
AGFA GEVAERT AG8 citations73
US4845024AJul 4, 1989
Hardeners for proteins, a binder layer hardened therewith and a photographic recording material containing such a layer
AGFA GEVAERT AG9 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
US4810625AMar 7, 1989
Photographic material with pyrazolone coupler and oil former
AGFA GEVAERT AG2 citations62
US4052216AOct 4, 1977
Color photographic material containing a hydroxyindane
AGFA GEVAERT AG3 citations62
US4952487AAug 28, 1990
Color photographic recording material
AGFA GEVAERT AG6 citations61