Hardo Siegel

Person

Speyer, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Simultaneous production of dicarboxylic acids and diamines by split...
- Patent number 6,140,428
- Issue date Oct 31, 2000
- BASF Aktiengesellschaft
- Ursula Seeliger
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Sterically hindered 4-amino-piperidine with a low dimer content, it...
- Patent number 6,013,803
- Issue date Jan 11, 2000
- BASF Aktiengesellschaft
- Manfred Julius
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for purifying sterically hindered 4-amino piperidines
- Patent number 6,011,157
- Issue date Jan 4, 2000
- BASF Aktiengesellschaft
- Manfred Julius
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the hydroxylation of aromatic acids using strains of th...
- Patent number 5,928,912
- Issue date Jul 27, 1999
- BASF Aktiengesellschaft
- Wolfgang Ladner
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Purification of tertiary phosphine oxides
- Patent number 5,892,121
- Issue date Apr 6, 1999
- BASF Aktiengesellschaft
- Dieter Hermeling
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of 2, 2, 6, 6-tetramethylpiperidin-4-one (TAA)
- Patent number 5,856,494
- Issue date Jan 5, 1999
- BASF Aktiengesellschaft
- Manfred Julius
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of tertiary amine oxides
- Patent number 5,543,515
- Issue date Aug 6, 1996
- BASF Aktiengesellschaft
- Ulrich Koehler
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of 2-methyl-1,4-butanediol and 3-methyltetrahydrofuran
- Patent number 5,536,854
- Issue date Jul 16, 1996
- BASF Aktiengesellschaft
- Hans-Juergen Weyer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of triphenylphosphine
- Patent number 5,527,966
- Issue date Jun 18, 1996
- BASF Aktiengesellschaft
- Dieter Hermeling
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of 5-vinylpyrrolidones
- Patent number 5,496,958
- Issue date Mar 5, 1996
- BASF Aktiengesellschaft
- Rolf Fischer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of 4-substituted imidazoles from N-formyl-.alpha.-amino...
- Patent number 5,359,082
- Issue date Oct 25, 1994
- BASF Aktiengesellschaft
- Ulrich Koehler
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of 2-(4-hydroxyphenoxy)propionic acid by fermentation
- Patent number 5,296,363
- Issue date Mar 22, 1994
- Base Aktiengesellschaft
- Bryan Cooper
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Continuous preparation of 3-cyano-3,5,5-trimethylcyclohexanone
- Patent number 5,254,711
- Issue date Oct 19, 1993
- BASF Aktiengesellschaft
- Hans J. Pander
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of 1,4-alkylenediamines
- Patent number 5,254,738
- Issue date Oct 19, 1993
- BASF Aktiengesellschaft
- Ulrich Koehler
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing a poly(1,4-butanediol-.omega.,.omega.'-bismer...
- Patent number 5,231,231
- Issue date Jul 27, 1993
- BASF Aktiengesellschaft
- Ulrich Koehler
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
(2R)-1-(aryloxy)-3-(butyryloxy)-2-propanols
- Patent number 5,208,333
- Issue date May 4, 1993
- BASF Aktiengesellschaft
- Axel Paul
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of unsaturated monoesters
- Patent number 5,196,571
- Issue date Mar 23, 1993
- BASF Aktiengesellschaft
- Wolfgang Hoelderich
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Acylation of alkyl aromatic hydrocarbons
- Patent number 5,136,089
- Issue date Aug 4, 1992
- BASF Aktiengesellschaft
- Jochem Henkelmann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of amines
- Patent number 5,132,427
- Issue date Jul 21, 1992
- BASF Aktiengesellschaft
- Ulrich Koehler
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polytetrahydrofuran derivatives having terminal aromatic groups
- Patent number 5,130,454
- Issue date Jul 14, 1992
- BASF Aktiengesellschaft
- Eckhard Hickmann
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Aminopropanol derivatives of substituted 2-hydroxy-propiophenones,...
- Patent number 5,118,685
- Issue date Jun 2, 1992
- BASF Aktiengesellschaft
- Albrecht Franke
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of N-substituted pyrrolidones
- Patent number 5,101,045
- Issue date Mar 31, 1992
- BASF Aktiengesellschaft
- Ulrich Koehler
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of hydroxybenzaldehydes
- Patent number 4,967,013
- Issue date Oct 30, 1990
- BASF Aktiengesellschaft
- Werner Steck
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of D- or L-alanine or high enantiomeric purity
- Patent number 4,962,231
- Issue date Oct 9, 1990
- BASF Aktiengesellschaft
- Axel Paul
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Amino compounds and fungicides containing them
- Patent number 4,914,133
- Issue date Apr 3, 1990
- BASF Aktiengesellschaft
- Walter Himmele
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Preparation of pyrroles from dialkoxytetrahydrofurans
- Patent number 4,906,758
- Issue date Mar 6, 1990
- BASF Aktiengesellschaft
- Wolfgang Hoelderich
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Acylation of aromatics
- Patent number 4,895,984
- Issue date Jan 23, 1990
- BASF Aktiengesellschaft
- Manfred Eggersdorfer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of alkyl-substituted aromatic ketones
- Patent number 4,853,481
- Issue date Aug 1, 1989
- BASF Aktiengesellschaft
- Jochem Henkelmann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
4-Methyl-4-phenyl-1-pentanals, their preparation and their use as s...
- Patent number 4,837,201
- Issue date Jun 6, 1989
- BASF Aktiengesellschaft
- Walter Gramlich
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Novel benzaldehyde dialkyl acetals and preparation and use thereof
- Patent number 4,820,389
- Issue date Apr 11, 1989
- BASF Aktiengesellschaft
- Dieter Degner
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR

Patents Applicationslast 30 patents

Information Patent Application
Heterogeneously catalyzed reactive distillation in the suspension mode
- Publication number 20040050680
- Publication date Mar 18, 2004
- Christian Miller
- C07 - ORGANIC CHEMISTRY

Hardo Siegel

Person

Patents Grantslast 30 patents

Simultaneous production of dicarboxylic acids and diamines by split...

Sterically hindered 4-amino-piperidine with a low dimer content, it...

Process for purifying sterically hindered 4-amino piperidines

Process for the hydroxylation of aromatic acids using strains of th...

Purification of tertiary phosphine oxides

Preparation of 2, 2, 6, 6-tetramethylpiperidin-4-one (TAA)

Preparation of tertiary amine oxides

Preparation of 2-methyl-1,4-butanediol and 3-methyltetrahydrofuran

Preparation of triphenylphosphine

Preparation of 5-vinylpyrrolidones

Preparation of 4-substituted imidazoles from N-formyl-.alpha.-amino...

Preparation of 2-(4-hydroxyphenoxy)propionic acid by fermentation

Continuous preparation of 3-cyano-3,5,5-trimethylcyclohexanone

Preparation of 1,4-alkylenediamines

Process for preparing a poly(1,4-butanediol-.omega.,.omega.'-bismer...

(2R)-1-(aryloxy)-3-(butyryloxy)-2-propanols

Preparation of unsaturated monoesters

Acylation of alkyl aromatic hydrocarbons

Process for the preparation of amines

Polytetrahydrofuran derivatives having terminal aromatic groups

Aminopropanol derivatives of substituted 2-hydroxy-propiophenones,...

Preparation of N-substituted pyrrolidones

Preparation of hydroxybenzaldehydes

Preparation of D- or L-alanine or high enantiomeric purity

Amino compounds and fungicides containing them

Preparation of pyrroles from dialkoxytetrahydrofurans

Acylation of aromatics

Preparation of alkyl-substituted aromatic ketones

4-Methyl-4-phenyl-1-pentanals, their preparation and their use as s...

Novel benzaldehyde dialkyl acetals and preparation and use thereof

Patents Applicationslast 30 patents

Heterogeneously catalyzed reactive distillation in the suspension mode