Inventor
KOHLHAUPT REINHOLD
DE11 patents
Patents
11 patentsUS5536842AJul 16, 1996
Purification of indigo
BASF AG8 citations72
US5424453AJun 13, 1995
Purification of indigo
BASF AG10 citations72
US5116997AMay 26, 1992
Purification of indigo
BASF AG6 citations72
US5116996AMay 26, 1992
Purification of indigo
BASF AG12 citations71
US4911888AMar 27, 1990
Use of salts of sulfonamidocarboxylic acids as corrosion inhibitors in aqueous systems
BASF AG12 citations70
US5109137AApr 28, 1992
Purification of indigo
BASF AG3 citations60
US5075458ADec 24, 1991
Purification of indigo
BASF AG4 citations60
US5525743AJun 11, 1996
Preparation of anthraquinone imide compounds
BASF AG0 citations51
US5380871AJan 10, 1995
Preparation of halogenated indigo
BASF AG1 citations51
US5354876AOct 11, 1994
Preparation and purification of 1-amino-2-phenoxy-4-hydroxyanthraquinone
BASF AG0 citations50
US4139543AFeb 13, 1979
Manufacture of 2-amino-3-bromoanthraquinone
BASF AG1 citations45