Inventor
BLANK HEINZ-ULRICH
DE23 patents
⚠️ This page may combine multiple inventors who share the name “BLANK HEINZ-ULRICH”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BAYER AG
22 patentsUS5545754AAug 13, 1996
Process for the preparation of p-amino-phenols
BAYER AG7 citations73
US5714647AFeb 3, 1998
Process for the adiabatic preparation of mononitrohalogenobenzenes
BAYER AG8 citations72
US4026944AMay 31, 1977
Process for manufacturing diaminonaphthalene
BAYER AG8 citations71
US5648565AJul 15, 1997
Process for the adiabatic preparation of mononitrotoluenes
BAYER AG16 citations68
US4769454ASep 6, 1988
Process for the preparation of N-methylol-caprolactam
BAYER AG5 citations63
US5446192AAug 29, 1995
Process for the preparation of β- aminoacrylic acid esters
BAYER AG6 citations62
US5302742AApr 12, 1994
Process for the preparation of N-acylated p-amino-phenols
BAYER AG5 citations62
US5288894AFeb 22, 1994
Process for the preparation of dialkyl carbonates
BAYER AG6 citations62
US4105692AAug 8, 1978
Process for the preparation of benzenesulphonyl chloride
BAYER AG5 citations62
US5574188ANov 12, 1996
Process for the preparation of 4,6-diaminoresorcinol
BAYER AG2 citations61
US5367108ANov 22, 1994
Process for the preparation of dinitro-polyalkylbenzenes
BAYER AG3 citations61
US5801284ASep 1, 1998
Hydrogenation of halonitroaromatic compounds
BAYER AG2 citations60
US4053526AOct 11, 1977
Process for isolating dinitronaphthalenes
BAYER AG2 citations60
US4012442AMar 15, 1977
Process for preparing M-chlorobenzene sulphonyl chloride
BAYER AG3 citations57
US5241099AAug 31, 1993
Process for the preparation of aminomethylene compounds
BAYER AG1 citations52
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
US4091013AMay 23, 1978
Process for preparing 1-amino-naphthalene-7-sulphonic acid
BAYER AG1 citations48
US5869735AFeb 9, 1999
Process for the preparation of alkyl aryl ethers containing carboxyl groups
BAYER AG0 citations47
US4990686AFeb 5, 1991
Process for the purification of crude 2,2-bis-(3,5-dimethyl-4-hydroxyphenyl)-propane
BAYER AG1 citations47
US5149890ASep 22, 1992
Process for the isolation of pure dinitrotoluenes
BAYER AG1 citations46
US5326911AJul 5, 1994
Process for the preparation of ortho-amides
BAYER AG0 citations41