P

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 patents
US4873026AOct 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

CIBA GEIGY AG

1 patent