Inventor
LEUPOLD ERNST I
40 patents
Patents
40 patentsUS4977283ADec 11, 1990
Process for the oxidation of 5-hydroxymethylfurfural
HOECHST AG130 citations95
US4340748AJul 20, 1982
Process for the manufacture of glyoxylic acid esters
HOECHST AG47 citations92
US4296266AOct 20, 1981
Process for the manufacture of lower olefins from methanol/water mixtures
HOECHST AG36 citations92
US4481146ANov 6, 1984
Process for the preparation of an ethyl ester
HOECHST AG43 citations89
US5490936AFeb 13, 1996
Process for catalyst recovery
HOECHST AG21 citations87
US5230804AJul 27, 1993
Process for separating catalysts from suspensions by filtration
HOECHST AG22 citations85
US4481376ANov 6, 1984
Process for the synthesis of lower olefins from methanol and/or dimethyl ether
HOECHST AG26 citations82
US4224236ASep 23, 1980
Process for the manufacture of oxygen-containing carbon compounds from synthesis gas
HOECHST AG28 citations82
US4247731AJan 27, 1981
Process for the manufacture of lower alkenes from methanol and/or dimethyl ether
HOECHST AG25 citations81
US4128575ADec 5, 1978
Process for the manufacture of glycolic acid or its esters
HOECHST AG20 citations81
US4976893ADec 11, 1990
Process for preparing carboxylic acids
HOECHST AG12 citations74
US4568777AFeb 4, 1986
Process for isomerizing monochlorophenols or dichlorophenols
HOECHST AG17 citations74
US5292626AMar 8, 1994
Developer composition for irradiated, radiation-sensitive positive-working, negative-working and reversible reprographic layers
HOECHST AG13 citations73
US4935561AJun 19, 1990
Process for isomerizing monochlorotoluenes or dichlorotoluenes
HOECHST AG15 citations73
US4442228AApr 10, 1984
Process for the manufacture of ethanol from synthesis gas
HOECHST AG13 citations73
US4288558ASep 8, 1981
Process for the manufacture of oxygen-containing carbon compounds from synthesis gas
HOECHST AG7 citations73
US5227529AJul 13, 1993
Process for the acylation of naphthyl ethers with the aid of zeolite catalysts
HOECHST AG17 citations72
US5019624AMay 28, 1991
Polyvinyl acetals and their use
HOECHST AG10 citations72
US4692547ASep 8, 1987
Process for the preparation of glyoxylic hemiacetal esters
HOECHST AG10 citations71
US4128727ADec 5, 1978
Process for the manufacture of acetic acid ethyl ester
HOECHST AG9 citations70
US4355187AOct 19, 1982
Process for the manufacture of methyl glyoxal
HOECHST AG4 citations63
US4351908ASep 28, 1982
Process for the manufacture of acetic acid, acetic aldehyde and ethanol from synthesis gas
HOECHST AG3 citations63
US4302609ANov 24, 1981
Process for the manufacture of methylglyoxal
HOECHST AG3 citations63
US4783541ANov 8, 1988
Process for isomerizing alkylthiophenes
HOECHST AG4 citations62
US4605809AAug 12, 1986
Aluminosilicates and silica gels having a low content of transition elements, a process for their use in the conversion of methanol to olefins
HOECHST AG2 citations62
US4604470AAug 5, 1986
Process for the isomerization of halogenated thiophenes
HOECHST AG5 citations62
US4522800AJun 11, 1985
Process for the production of a crystalline aluminosilicate zeolite
HOECHST AG6 citations62
US4372878AFeb 8, 1983
Process for the preparation of an aluminum silicate catalyst for converting methanol containing water and/or dimethyl ether containing water into lower olefins
HOECHST AG5 citations62
US5082504AJan 21, 1992
Process for the preparation of a mixture of sucrose oxidation products and the use thereof
HOECHST AG2 citations61
US5043493AAug 27, 1991
Process for the preparation of 2-chloro- or 2-bromo-naphthalene
HOECHST AG2 citations61
US5264094ANov 23, 1993
Process for the preparation of fluorobenzenes
HOECHST AG2 citations60
US4968833ANov 6, 1990
Process for the preparation of a glyoxylic acid ester
HOECHST AG5 citations60
US4937395AJun 26, 1990
Process for the preparation of fluorobenzenes
HOECHST AG6 citations60
US4814491AMar 21, 1989
Hemiacetals of glyoxylic esters and a process for the isolation of glyoxylic esters
HOECHST AG4 citations60
US5367104ANov 22, 1994
Process for the purification of organic compounds contaminated by dissolved metal compounds
HOECHST AG5 citations57
US5210259AMay 11, 1993
Process for the oxidation of dialkyl esters of 2-hydroxy-ethylphosphonic acid
HOECHST AG0 citations52
US4590217AMay 20, 1986
Process for the manufacture of acetic acid, acetaldehyde and ethanol
HOECHST AG0 citations52
US5238597AAug 24, 1993
Sucrosetricarboxylic acid and compositions containing the same
HOECHST AG1 citations51
US4720583AJan 19, 1988
Process for the isomerization of o-, m- and/or p-toluidine
HOECHST AG1 citations51
US5396012AMar 7, 1995
Process for the preparation of monoisopropylnaphthalene
HOECHST AG1 citations50