Inventor
BEHRE HORST
DE36 patents
⚠️ This page may combine multiple inventors who share the name “BEHRE HORST”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BAYER AG
35 patentsUS4873026AOct 10, 1989
Process for the preparation of 1-aminonaphthalene-2,4,7-trisulphonic acid and 1-aminonaphthalene-7-sulphonic acid
BAYER AG57 citations95
US6465678B1Oct 15, 2002
Method for preparing methyl carbazate
BAYER AG7 citations73
US4973758ANov 27, 1990
Process for the preparation of 1,5-dihydroxynaphthalene and 1,5-diaminonaphthalene
BAYER AG11 citations72
US4534905AAug 13, 1985
Process for the preparation of nitronaphthalene-sulphonic acids
BAYER AG7 citations71
US4178308ADec 11, 1979
Process for the preparation of 1-amino-8-naphthol-3,6-disulphonic acid (H-acid)
BAYER AG13 citations71
US4166826ASep 4, 1979
Process for the preparation of 1-amino-8-naphthol-3,6-disulphonic acid (H-acid)
BAYER AG7 citations71
US4325889AApr 20, 1982
Process for the preparation of 1-amino-8-naphthol-3,6-disulphonic acid (H-acid)
BAYER AG11 citations68
US5847217ADec 8, 1998
Process for the preparation of 2-amino-5-alkyl-phenols
BAYER AG2 citations63
US5629441AMay 13, 1997
2-(arylimino-methyl)-3-dialkylaminoacrylonitriles, a process for their preparation and their use
BAYER AG2 citations63
US5847234ADec 8, 1998
Process for the preparation of 4-hydroxybiphenyl
BAYER AG2 citations62
US4836959AJun 6, 1989
Process for the preparation of 1-aminonaphthalene-2,4,7-trisulphonic acid and 1-aminonaphthalene-7-sulphonic acid
BAYER AG2 citations62
US4450297AMay 22, 1984
Preparation of o-nitrobenzaldehyde
BAYER AG3 citations62
US4369143AJan 18, 1983
Process for the preparation of naphthalene-1,3,5-trisulphonic acid
BAYER AG3 citations62
US5574188ANov 12, 1996
Process for the preparation of 4,6-diaminoresorcinol
BAYER AG2 citations61
US4538007AAug 27, 1985
Process for the simultaneous recovery of 4-hydroxy-diphenyl and 4,4'-dihydroxydiphenyl
BAYER AG2 citations60
US4426334AJan 17, 1984
Process for isolating H acid and K acid
BAYER AG2 citations60
US4348336ASep 7, 1982
Process for the isolation of 1-naphthylamine-4,6- and 1-naphthylamine-4,7-disulphonic acid
BAYER AG4 citations60
US4407762AOct 4, 1983
Process for the isolation of 1-naphthylamine-4,8-disulphonic acid
BAYER AG3 citations59
US4163752AAug 7, 1979
Process for the preparation of aminonaphthalenesulphonic acids
BAYER AG2 citations57
US4180521ADec 25, 1979
Process for the preparation of naphthalene-1,3,6-trisulphonic acid
BAYER AG1 citations52
US6610893B2Aug 26, 2003
Method for producing 4-hydroxy-3-nitrobiphenyl
BAYER AG0 citations51
US6093852AJul 25, 2000
Process for preparing 4,6-diamino-resorcinol dihydrochloride
BAYER AG1 citations51
US5248812ASep 28, 1993
Process for the isolation of 2-naphthylamine-1,5-disulphonic acid
BAYER AG0 citations51
US4705652ANov 10, 1987
Tetra-alkali metal salts of chromotropic acid, a process for their isolation and their use
BAYER AG0 citations51
US6133480AOct 17, 2000
Preparation of N-phenyl-1-naphthylamine
BAYER AG1 citations50
US4609503ASep 2, 1986
Process for the preparation of 1-amino-8-naphthol-4,6-disulphonic acid (k-acid)
BAYER AG0 citations50
US4427601AJan 24, 1984
Process for preparing 1-amino-2-naphthol-4-sulphonic acid (amidol acid)
BAYER AG1 citations50
US6620962B2Sep 16, 2003
Method for producing n-butyryl-4-amino-3-methyl-methyl benzoate and the novel compound n-(4-bromine-2-methylphenyl)-butanamide
BAYER AG1 citations49
US4426333AJan 17, 1984
Process for the preparation of 1-benzoylamino-8-hydroxynaphthalene-4,6-disulphonic acid (benzoyl-K acid)
BAYER AG1 citations49
US4338261AJul 6, 1982
Process for the preparation of 1-naphthylamine-4,6-disulphonic acid and 1-naphthylamine-2,4,6-trisulphonic acid
BAYER AG0 citations48
US4540817ASep 10, 1985
Process for the preparation of 5-amino-2,4-dimethylacetanilide
BAYER AG1 citations47
US4859372AAug 22, 1989
Process for the sulphonation of aromatic compounds with sulphur trioxide
BAYER AG0 citations46
US6204413B1Mar 20, 2001
Process for the preparation of salts of 1-substituted 2,4-diaminobenzenes
BAYER AG0 citations41
US6891060B2May 10, 2005
Preparation of 3-acyloxy-2-methylbenzoic acids
BAYER AG0 citations33
US4377535AMar 22, 1983
Process for the preparation of nitro-T-acid (8-nitro-naphthalene-1,3,6-trisulphonic acid)
BAYER AG0 citations33