Inventor
HOCH HELMUT
DE26 patents
⚠️ This page may combine multiple inventors who share the name “HOCH HELMUT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BASF AG
25 patentsUS4067903AJan 10, 1978
Manufacture of arylamines
BASF AG11 citations73
US5342950AAug 30, 1994
Preparation of quinophthalone derivatives
BASF AG12 citations72
US4979684ADec 25, 1990
Dispersion, comminution or deagglomeration and classification of solids
BASF AG12 citations72
US4286094AAug 25, 1981
Preparation of a pigmentary form of perylene-3,4,9,10-tetracarboxylic acid diimide
BASF AG9 citations72
US4189582AFeb 19, 1980
Process for upgrading the color value of 3,4,9,10-tetracarboxylic acid N,N'-bis-methylimide
BASF AG11 citations72
US4332955AJun 1, 1982
Preparation of transparent pigmentary forms of 4,4',7,7'-tetrachlorothioindigo
BASF AG3 citations62
US4298534ANov 3, 1981
Preparation of brilliant, transparent pigmentary bromo-isoviolanthrone of high tinctorial strength
BASF AG2 citations62
US4038309AJul 26, 1977
Production of 2-hydroxynaphthalene-3-carboxylic acid
BASF AG2 citations62
US4032568AJun 28, 1977
Production of 2-hydroxynaphthalene-3-carboxylic acid
BASF AG4 citations62
US4020102AApr 26, 1977
Production of 2-hydroxynaphthalene-3-carboxylic acid
BASF AG5 citations62
US4002675AJan 11, 1977
Manufacture of 2-hydroxy-naphthalene-3-carboxylic acid
BASF AG2 citations62
US4002664AJan 11, 1977
Manufacture of dimethylaminobenzenecarboxylic acid esters
BASF AG4 citations62
US5210190AMay 11, 1993
Preparation of triazinyl-bis-anthraquinone dyes by reacting aryldihalotriazine with amino anthraquinone
BASF AG4 citations61
US4217455AAug 12, 1980
Preparation of transparent and easily dispersible perylene-3,4,9,10-tetracarboxylic acid diimide pigments of high tinctorial strength
BASF AG5 citations61
US4904796AFeb 27, 1990
Preparation of a blue anthraquinonoid disperse dye of 1,4-naphthoquinone-[2,]-phthalimides
BASF AG3 citations59
US4167634ASep 11, 1979
Manufacture of a pigmentary form of α-indanthrone
BASF AG6 citations56
US5525743AJun 11, 1996
Preparation of anthraquinone imide compounds
BASF AG0 citations51
US5066820ANov 19, 1991
Process for the preparation of 1-amino-2-carboxyanthraquinones
BASF AG1 citations51
US4882095ANov 21, 1989
Preparation of alkoxy(iso)violanthrenediones
BASF AG0 citations51
US4824608AApr 25, 1989
Preparation of C.I. Vat Blue 16
BASF AG1 citations51
US4431824AFeb 14, 1984
Preparation of 4,4',7,7'-tetrachlorothioindigo pigments of high color strength
BASF AG0 citations51
US4323510AApr 6, 1982
Brown vat dye and its preparation
BASF AG0 citations51
US4133828AJan 9, 1979
Manufacture of dimethylaminobenzenesulfonates
BASF AG0 citations51
US4950756AAug 21, 1990
Preparation of 1-nitroanthraquinone-2-carboxylic acid
BASF AG1 citations50
US4916244AApr 10, 1990
Preparation of 1-amino-4-hydroxy-2-(6'-hydroxyhexoxy)-anthraquinone
BASF AG0 citations41