Inventor
SOMMER RICHARD
DE23 patents
⚠️ This page may combine multiple inventors who share the name “SOMMER RICHARD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BAYER AG
22 patentsUS6350307B1Feb 26, 2002
Metal complex pigments
BAYER AG31 citations91
US6261358B1Jul 17, 2001
Pigment preparations
BAYER AG22 citations90
US6281338B1Aug 28, 2001
Mono- and dipotassium salts of azo compounds
BAYER AG7 citations73
US4026931AMay 31, 1977
Process for dyeing polyurethane plastics
BAYER AG16 citations70
US4243584AJan 6, 1981
Monoazo dyestuffs containing diazo component substituted by disulfimide and trifluoromethyl groups
BAYER AG2 citations62
US4159265AJun 26, 1979
Phenylazopyrazolo dyestuffs including disulfimide substituent
BAYER AG2 citations61
US4119623AOct 10, 1978
Water-soluble diphenylamine-azo-sulfatoalkoxyphenyl dyestuffs
BAYER AG6 citations61
US4000123ADec 28, 1976
Aminosulfonylphenyl-azo-indolyl dyestuffs
BAYER AG5 citations61
US3994873ANov 30, 1976
Azo dyestuffs containing sulfonylamino-sulfonyl groups
BAYER AG3 citations61
US3956267AMay 11, 1976
Indole-containing disazo dyestuffs having a sulfatoalkyleneoxy-substituent
BAYER AG4 citations61
US4060521ANov 29, 1977
Benzene-azo-indole dyestuffs
BAYER AG2 citations59
US5420255AMay 30, 1995
Process for the continuous reaction of halogenopyrimidines with amines
BAYER AG5 citations58
US3992143ANov 16, 1976
Exhaust process for the dyeing of synthetic fiber materials
BAYER AG5 citations58
US4024126AMay 17, 1977
Aryl- or alkyl-sulphonyl aminosulphonylphenyl-azo-arylene-azo-phenyl dyestuffs
BAYER AG1 citations52
US4008216AFeb 15, 1977
Benzenesulphonylbenzenesulphonamideazophenyl-or-naphthyl-azolhydroxyloweralkoxyphenyl dyestuffs
BAYER AG1 citations52
US3971770AJul 27, 1976
Disulfimide disazo dyestuffs
BAYER AG0 citations52
US3945992AMar 23, 1976
Arylsulphonylaminosulphonylphenyl-azo-arylene-azo-phenyl dyestuff
BAYER AG1 citations52
US4022763AMay 10, 1977
Sulfaphenyl-azo-phenyl-azo-aminophenyl dyestuffs
BAYER AG1 citations51
US5502173AMar 26, 1996
Process for the preparation of a substituted 2-amino-1-sulphonaphthalene
BAYER AG0 citations48
US4369324AJan 18, 1983
Process for the preparation of 2-amino-6-nitrobenzothiazole
BAYER AG1 citations47
US4055557AOct 25, 1977
Sulfonamidobenzene-azo-aminopyrazole dyestuffs
BAYER AG1 citations47
US3978039AAug 24, 1976
Disulphimidophenyl-azo-naphthyl-azo-aminophenyl dyestuffs
BAYER AG0 citations41