Heinz Ziemann

Person

Leichlingen, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of saturated, fluorine-containing and c...
- Patent number 5,530,169
- Issue date Jun 25, 1996
- Bayer Aktiengesellschaft
- Dietmar Bielefeldt
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of (hetero)arylalk(en/in)ylamines and (...
- Patent number 5,283,363
- Issue date Feb 1, 1994
- Bayer Aktiengesellschaft
- Dietmar Kuhnt
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
.alpha.-trifluoromethyl-substituted, saturated bicyclic amines
- Patent number 5,204,471
- Issue date Apr 20, 1993
- Bayer Aktiengesellschaft
- Michael Negele
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Carboxylic acid halides containing trifluoromethyl groups and a pro...
- Patent number 5,093,522
- Issue date Mar 3, 1992
- Bayer Aktiengesellschaft
- Dietmar Bielefeldt
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of partially fluorinated alcohols
- Patent number 5,087,775
- Issue date Feb 11, 1992
- Bayer Aktiengesellschaft
- Karl-Rudolf Gassen
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of amines
- Patent number 5,011,996
- Issue date Apr 30, 1991
- Bayer Aktiengesellschaft
- Wolfgang Kiel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the hydrogenation of .alpha.,.beta.-unsaturated ketones
- Patent number 4,940,819
- Issue date Jul 10, 1990
- Bayer Aktiengesellschaft
- Wolfgang Kiel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of hydroxybenzaldoxime O-ethers
- Patent number 4,845,288
- Issue date Jul 4, 1989
- Bayer Aktiengesellschaft
- Reinhard Lantzsch
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of 2,3,5,6-tetrafluorobenzoic acid
- Patent number 4,822,912
- Issue date Apr 18, 1989
- Bayer Aktiengesellschaft
- Klaus Naumann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Novel substituted furazane
- Patent number 4,764,524
- Issue date Aug 16, 1988
- Bayer Aktiengesellschaft
- Wilhelm Sirrenberg
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Substituted 5-cycloalkyl-2,2-di-methyl-pentan-3-ones
- Patent number 4,661,640
- Issue date Apr 28, 1987
- Bayer Aktiengesellschaft
- Heinz Ziemann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polyamines
- Patent number 4,642,344
- Issue date Feb 10, 1987
- Bayer Aktiengesellschaft
- Manfred Hajek
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of partially hydrogenated derivatives o...
- Patent number 4,622,427
- Issue date Nov 11, 1986
- Bayer Aktiengesellschaft
- Bernd Baasner
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Substituted 5-cycloalkyl-2,2-di-methyl-pentan-3-ones
- Patent number 4,602,115
- Issue date Jul 22, 1986
- Bayer Aktiengesellschaft
- Heinz Ziemann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of neopentylamine
- Patent number 4,495,369
- Issue date Jan 22, 1985
- Bayer Aktiengesellschaft
- Friedrich Werner
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of 2-trimethylsilyloxy-ethylamines
- Patent number 4,434,289
- Issue date Feb 28, 1984
- Bayer Aktiengesellschaft
- Kurt Findeisen
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of 1,4-3,6-dianhydro-hexitols
- Patent number 4,408,061
- Issue date Oct 4, 1983
- Bayer Aktiengesellschaft
- Herbert Salzburg
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
2-Amino-3a,4,5,6-tetrahydro-perimidine derivatives and their medici...
- Patent number 4,328,223
- Issue date May 4, 1982
- Bayer Aktiengesellschaft
- Hans-Joachim Kabbe
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polyurethane foams from polyether polyols which contain amide groups
- Patent number 4,100,116
- Issue date Jul 11, 1978
- Bayer Aktiengesellschaft
- Jan Mazanek
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Heinz Ziemann

Person

Patents Grantslast 30 patents

Process for the preparation of saturated, fluorine-containing and c...

Process for the preparation of (hetero)arylalk(en/in)ylamines and (...

.alpha.-trifluoromethyl-substituted, saturated bicyclic amines

Carboxylic acid halides containing trifluoromethyl groups and a pro...

Process for the preparation of partially fluorinated alcohols

Process for the preparation of amines

Process for the hydrogenation of .alpha.,.beta.-unsaturated ketones

Process for the preparation of hydroxybenzaldoxime O-ethers

Process for the preparation of 2,3,5,6-tetrafluorobenzoic acid

Novel substituted furazane

Substituted 5-cycloalkyl-2,2-di-methyl-pentan-3-ones

Polyamines

Process for the preparation of partially hydrogenated derivatives o...

Substituted 5-cycloalkyl-2,2-di-methyl-pentan-3-ones

Process for the preparation of neopentylamine

Process for the preparation of 2-trimethylsilyloxy-ethylamines

Process for the preparation of 1,4-3,6-dianhydro-hexitols

2-Amino-3a,4,5,6-tetrahydro-perimidine derivatives and their medici...

Polyurethane foams from polyether polyols which contain amide groups