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Karlheinz Giselbrecht
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Patents Grants
last 30 patents
Information
Patent Grant
Process for preparing high-purity, halogen-free o-phthaladehyde
Patent number
7,858,381
Issue date
Dec 28, 2010
DSM Fine Chemicals Austria Nfg GmbH & Co KG
Karlheinz Giselbrecht
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for producing aqueous ortho-phthalaldehyde solutions
Patent number
7,402,708
Issue date
Jul 22, 2008
DSM Fine Chemicals Austria Nfg GmbH & Co KG
Karlheinz Giselbrecht
A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information
Patent Grant
Process for the purification of ketones obtained from the correspon...
Patent number
6,545,186
Issue date
Apr 8, 2003
DSM Fine Chemicals Austria Nfg GmbH & Co., KG
Karlheinz Giselbrecht
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing substituted aromatic and heteroaromatic aldeh...
Patent number
6,518,455
Issue date
Feb 11, 2003
DSM Fine Chemicals Austria Nfg GmbH & CoKG
Gerhard Steinbauer
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the purification and formulation of o-phthalaldehyde
Patent number
6,486,358
Issue date
Nov 26, 2002
DSM Fine Chemicals Austria Nfg GmbH & Co KG
Karlheinz Giselbrecht
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for producing hydroxymethylpyridines
Patent number
6,486,327
Issue date
Nov 26, 2002
DSM Fine Chemicals Austria Nfg GmbH & Co KG
Karlheinz Giselbrecht
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of 2,3-pyridinedicarboxylic acids
Patent number
6,395,903
Issue date
May 28, 2002
DSM Fine Chemicals Austria Nfg GmbH & CoKG
Karlheinz Giselbrecht
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing 1-pyruvyl-L-proline
Patent number
5,898,076
Issue date
Apr 27, 1999
DSM Chemie Linz GmbH
Karlheinz Giselbrecht
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
Process for preparing high-purity, halogen-free o-phthaladehyde
Publication number
20060293542
Publication date
Dec 28, 2006
Karlheinz Giselbrecht
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Method for producing aqueous ortho-phthalaldehyde solutions
Publication number
20060199870
Publication date
Sep 7, 2006
DSM Fine Chemicals Austria Nfg GmbH & Co KG
Karlheinz Giselbrecht
A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information
Patent Application
PROCESS FOR THE PURIFICATION AND FORMULATION OF O-PHTHALALDEHYDE
Publication number
20020173678
Publication date
Nov 21, 2002
Karlheinz Giselbrecht
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Process for the purification of ketones obtained from the correspon...
Publication number
20020077510
Publication date
Jun 20, 2002
Karlheinz Giselbrecht
C07 - ORGANIC CHEMISTRY
Information
Patent Application
PROCESS FOR THE PREPARATION OF 2,3-PYRIDINEICARBOXYLIC ACIDS
Publication number
20020062025
Publication date
May 23, 2002
Karlheinz Giselbrecht
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Process for preparing alkyl- or aryloxyacetaldehydes
Publication number
20010053852
Publication date
Dec 20, 2001
Karlheinz Giselbrecht
C07 - ORGANIC CHEMISTRY