Inventor
MEYER HANS R
CH36 patents
⚠️ This page may combine multiple inventors who share the name “MEYER HANS R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CIBA GEIGY CORP
34 patentsUS4384121AMay 17, 1983
Cationic fluorescent whitening agents
CIBA GEIGY CORP37 citations96
US4360679ANov 23, 1982
Benzofuranyl-benzimidazoles
CIBA GEIGY CORP33 citations93
US4264325AApr 28, 1981
Phenyl-benzimidazolyl-furanes for optical brightening of organic materials
CIBA GEIGY CORP30 citations93
US4250317AFeb 10, 1981
Benzofuranyl-benzimidazoles
CIBA GEIGY CORP35 citations93
US4433975AFeb 28, 1984
Cationic fluorescent whitening agents
CIBA GEIGY CORP28 citations92
US4478598AOct 23, 1984
Amphoteric styrene derivatives useful as fluorescent brighteners
CIBA GEIGY CORP27 citations86
US4432886AFeb 21, 1984
Cationic fluorescent whitening agents
CIBA GEIGY CORP26 citations82
US4146725AMar 27, 1979
Benzofuranyl-benzimidazoles
CIBA GEIGY CORP26 citations82
US4666627AMay 19, 1987
4-Heterocyclylvinyl-4-'styryl-biphenyls
CIBA GEIGY CORP12 citations74
US4314820AFeb 9, 1982
Distyrylbenzene fluorescent brightening agents
CIBA GEIGY CORP11 citations74
US4206072AJun 3, 1980
Benzoxazolyl-phenyl-stilbenes
CIBA GEIGY CORP7 citations74
US4189589AFeb 19, 1980
Phenyl-benzimidazolyl-furanes
CIBA GEIGY CORP13 citations74
US4177347ADec 4, 1979
Distilbenyl-oxdiazoles
CIBA GEIGY CORP8 citations74
US5152922AOct 6, 1992
1,4-distyrylbenzene compounds and mixtures thereof with other 1,4-distyrybenzene compounds
CIBA GEIGY CORP7 citations73
US5035825AJul 30, 1991
Stable bleaching detergents containing stilbene fluorescent whitening agents
CIBA GEIGY CORP13 citations73
US4339393AJul 13, 1982
Distyrylbiphenyls
CIBA GEIGY CORP10 citations73
US4263431AApr 21, 1981
Cationic fluorescent whitening agents
CIBA GEIGY CORP13 citations73
US5326491AJul 5, 1994
Detergents containing certain sulfonated dibenzofuranylbiphenyls
CIBA GEIGY CORP2 citations63
US5308545AMay 3, 1994
Pyrazoline compounds
CIBA GEIGY CORP2 citations63
US4904794AFeb 27, 1990
Pyrazoline compounds
CIBA GEIGY CORP2 citations63
US4891153AJan 2, 1990
Mixtures of fluorescent whitening agents
CIBA GEIGY CORP2 citations63
US4867906ASep 19, 1989
Mixtures of fluorescent whitening agents
CIBA GEIGY CORP3 citations63
US4778622AOct 18, 1988
Mixtures of fluorescent whitening agents
CIBA GEIGY CORP2 citations63
US4602087AJul 22, 1986
Distyrylbiphenyls
CIBA GEIGY CORP3 citations62
US4468352AAug 28, 1984
Distyrylbiphenyls
CIBA GEIGY CORP1 citations62
US4313846AFeb 2, 1982
N-Acyl-o-phenylenediamines
CIBA GEIGY CORP4 citations59
US5072016ADec 10, 1991
Mixtures of fluorescent whitening agents
CIBA GEIGY CORP2 citations58
US4172045AOct 23, 1979
Process for the manufacture of 2-stilbenyl-1,2,3-triazoles which contain carboxyl groups, novel 2-stilbenyl-1,2,3-triazoles which contain carboxyl groups and the use thereof as fluorescent brighteners
CIBA GEIGY CORP2 citations54
US5470990ANov 28, 1995
Sulfonation of benzofuranylbiphenyls
CIBA GEIGY CORP1 citations52
US5434275AJul 18, 1995
Dibenzofuranylbiphenyls
CIBA GEIGY CORP0 citations52
US4816590AMar 28, 1989
Pyrazoline compounds and method of whitening
CIBA GEIGY CORP1 citations52
US4542222ASep 17, 1985
Benzimidazoles
CIBA GEIGY CORP1 citations52
US4276188AJun 30, 1981
Process for manufacturing 2-stilbenyl-1,2,3-triazoles and new 2-stilbenyl-1,2,3-triazoles
CIBA GEIGY CORP1 citations52
US4455436AJun 19, 1984
N-Acyl-o-phenylenediamines
CIBA GEIGY CORP0 citations48