Ernst I. Leupold

Person

Neu-Anspach, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Process for preparing alkanephosphonic anhydrides
- Patent number 5,710,330
- Issue date Jan 20, 1998
- Hoechst AG
- Carl Christoph Mollenkopf
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for catalyst recovery
- Patent number 5,490,936
- Issue date Feb 13, 1996
- Hoechst Aktiengesellschaft
- Ernst I. Leupold
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of monoisopropylnaphthalene
- Patent number 5,396,012
- Issue date Mar 7, 1995
- Hoechst Aktiengesellschaft
- Marita Neuber
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the purification of organic compounds contaminated by d...
- Patent number 5,367,104
- Issue date Nov 22, 1994
- Hoechst Aktiengesellschaft
- Ernst I. Leupold
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of fluorobenzenes
- Patent number 5,264,094
- Issue date Nov 23, 1993
- Hoechst Aktiengesellschaft
- Frank P. Sistig
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Sucrosetricarboxylic acid and compositions containing the same
- Patent number 5,238,597
- Issue date Aug 24, 1993
- Hoechst Aktiengesellschaft
- Wolfram Fritsche-Lang
- A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
Information Patent Grant
Process for separating catalysts from suspensions by filtration
- Patent number 5,230,804
- Issue date Jul 27, 1993
- Hoechst AG.
- Ernst I. Leupold
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the acylation of naphthyl ethers with the aid of zeolit...
- Patent number 5,227,529
- Issue date Jul 13, 1993
- Hoechst Aktiengesellschaft
- marita Neuber
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the oxidation of dialkyl esters of 2-hydroxy-ethylphosp...
- Patent number 5,210,259
- Issue date May 11, 1993
- Hoechst Aktiengesellschaft
- Ernst I. Leupold
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of a mixture of sucrose oxidation produ...
- Patent number 5,082,504
- Issue date Jan 21, 1992
- Hoechst Aktiengesellschaft
- Ernst I. Leupold
- A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
Information Patent Grant
Process for the preparation of 2-chloro- or 2-bromo-naphthalene
- Patent number 5,043,493
- Issue date Aug 27, 1991
- Hoechst Aktiengesellschaft
- marita Neuber
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polyvinyl acetals and their use
- Patent number 5,019,624
- Issue date May 28, 1991
- Hoechst AG
- Matthias Gutweiler
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the oxidation of 5-hydroxymethylfurfural
- Patent number 4,977,283
- Issue date Dec 11, 1990
- Hoechst Aktiengesellschaft
- Ernst I. Leupold
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing carboxylic acids
- Patent number 4,976,893
- Issue date Dec 11, 1990
- Hoechst Aktiengesellschaft
- Ernst I. Leupold
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of a glyoxylic acid ester
- Patent number 4,968,833
- Issue date Nov 6, 1990
- Hoechst Aktiengesellschaft
- Robert K. Driscoll
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Process for the preparation of fluorobenzenes
- Patent number 4,937,395
- Issue date Jun 26, 1990
- Hoechst Aktiengesellschaft
- Heinz Litterer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for isomerizing monochlorotoluenes or dichlorotoluenes
- Patent number 4,935,561
- Issue date Jun 19, 1990
- Hoechst Aktiengesellschaft
- Klaus Eichler
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Hemiacetals of glyoxylic esters and a process for the isolation of...
- Patent number 4,814,491
- Issue date Mar 21, 1989
- Hoeschst Aktiengesellschaft
- Robert K. Driscoll
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for isomerizing alkylthiophenes
- Patent number 4,783,541
- Issue date Nov 8, 1988
- Hoechst Aktiengesellschaft
- Klaus Eichler
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the isomerization of o-, m- and/or p-toluidine
- Patent number 4,720,583
- Issue date Jan 19, 1988
- Hoechst Aktiengesellschaft
- Klaus Eichler
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of glyoxylic hemiacetal esters
- Patent number 4,692,547
- Issue date Sep 8, 1987
- Hoechst Aktiengesellschaft
- Robert K. Driscoll
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Aluminosilicates and silica gels having a low content of transition...
- Patent number 4,605,809
- Issue date Aug 12, 1986
- Hoechst Aktiengesellschaft
- Heinz Litterer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the isomerization of halogenated thiophenes
- Patent number 4,604,470
- Issue date Aug 5, 1986
- Hoechst Aktiengesellschaft
- Klaus Eichler
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the manufacture of acetic acid, acetaldehyde and ethanol
- Patent number 4,590,217
- Issue date May 20, 1986
- Hoechst Aktiengesellschaft
- Ernst I. Leupold
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for isomerizing monochlorophenols or dichlorophenols
- Patent number 4,568,777
- Issue date Feb 4, 1986
- Hoechst Aktiengesellschaft
- Herbert Baltes
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the production of a crystalline aluminosilicate zeolite
- Patent number 4,522,800
- Issue date Jun 11, 1985
- Hoechst Aktiengesellschaft
- Herbert Baltes
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the synthesis of lower olefins from methanol and/or dim...
- Patent number 4,481,376
- Issue date Nov 6, 1984
- Hoechst Aktiengesellschaft
- Friedrich Wunder
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of an ethyl ester
- Patent number 4,481,146
- Issue date Nov 6, 1984
- Hoechst Aktiengesellschaft
- Ernst I. Leupold
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the manufacture of ethanol from synthesis gas
- Patent number 4,442,228
- Issue date Apr 10, 1984
- Hoechst Aktiengesellschaft
- Ernst I. Leupold
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of an aluminum silicate catalyst for co...
- Patent number 4,372,878
- Issue date Feb 8, 1983
- Hoechst Aktiengesellschaft
- Friedrich Wunder
- C07 - ORGANIC CHEMISTRY

Ernst I. Leupold

Person

Patents Grantslast 30 patents

Process for preparing alkanephosphonic anhydrides

Process for catalyst recovery

Process for the preparation of monoisopropylnaphthalene

Process for the purification of organic compounds contaminated by d...

Process for the preparation of fluorobenzenes

Sucrosetricarboxylic acid and compositions containing the same

Process for separating catalysts from suspensions by filtration

Process for the acylation of naphthyl ethers with the aid of zeolit...

Process for the oxidation of dialkyl esters of 2-hydroxy-ethylphosp...

Process for the preparation of a mixture of sucrose oxidation produ...

Process for the preparation of 2-chloro- or 2-bromo-naphthalene

Polyvinyl acetals and their use

Process for the oxidation of 5-hydroxymethylfurfural

Process for preparing carboxylic acids

Process for the preparation of a glyoxylic acid ester

Process for the preparation of fluorobenzenes

Process for isomerizing monochlorotoluenes or dichlorotoluenes

Hemiacetals of glyoxylic esters and a process for the isolation of...

Process for isomerizing alkylthiophenes

Process for the isomerization of o-, m- and/or p-toluidine

Process for the preparation of glyoxylic hemiacetal esters

Aluminosilicates and silica gels having a low content of transition...

Process for the isomerization of halogenated thiophenes

Process for the manufacture of acetic acid, acetaldehyde and ethanol

Process for isomerizing monochlorophenols or dichlorophenols

Process for the production of a crystalline aluminosilicate zeolite

Process for the synthesis of lower olefins from methanol and/or dim...

Process for the preparation of an ethyl ester

Process for the manufacture of ethanol from synthesis gas

Process for the preparation of an aluminum silicate catalyst for co...