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Holger Geissler
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Kelkheim, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Process for preparing phenylacetic acid derivatives
Patent number
6,653,502
Issue date
Nov 25, 2003
Clariant GmbH
Holger Geissler
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Valeraldehyde and process for its preparation
Patent number
6,566,521
Issue date
May 20, 2003
Celanese GmbH
Holger Geissler
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for separating hydrogen chloride from a mixture comprising...
Patent number
6,521,097
Issue date
Feb 18, 2003
Clariant GmbH
Holger Geissler
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for the catalytic production of substituted bipyridyl deriva...
Patent number
6,500,956
Issue date
Dec 31, 2002
Axiva GmbH
Holger Geissler
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing biaryls in the presence of palladophosphacycl...
Patent number
6,392,047
Issue date
May 21, 2002
Clariant GmbH
Holger Geissler
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing aromatic amines in the presence of palladapho...
Patent number
6,353,136
Issue date
Mar 5, 2002
Clariant GmbH
Holger Geissler
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of isochroman-3-ones
Patent number
6,348,603
Issue date
Feb 19, 2002
Clariant GmbH
Holger Geissler
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Valeraldehyde and process for its preparation
Patent number
6,342,605
Issue date
Jan 29, 2002
Celanese GmbH
Holger Geissler
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of 3-isochromanoes by cyclization of o-...
Patent number
6,215,006
Issue date
Apr 10, 2001
Clariant GmbH
Holger Geissler
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing aromatic olefins by using palladaphosphacyclo...
Patent number
6,194,627
Issue date
Feb 27, 2001
Aventis Research & Technology GmbH & Co. KG
Holger Geissler
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for recovering cobalt carbonyl catalysts used to produced N...
Patent number
6,162,753
Issue date
Dec 19, 2000
Aventis Research & Technologies GmbH & Co. KG
Holger Geissler
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Dipalladaphosphacyclobutanes and a process for preparing the same
Patent number
6,084,114
Issue date
Jul 4, 2000
Aventis Research & Technologies GmbH & Co. KG
Holger Geissler
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing isochroman-3-ones
Patent number
6,075,152
Issue date
Jun 13, 2000
Clariant GmbH
Holger Geissler
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the catalytic preparation of 3-isochromanones from phth...
Patent number
6,002,020
Issue date
Dec 14, 1999
Clariant GmbH
Holger Geissler
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Synthesis of aromatic amines from chloroamatics
Patent number
5,831,128
Issue date
Nov 3, 1998
Hoechst Aktiengesellschaft
Matthias Beller
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for recovering cobalt carbonyl catalysts used in the prepar...
Patent number
5,756,413
Issue date
May 26, 1998
Hoechst Aktiengesellschaft
Sandra Bogdanovic
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Patents Applications
last 30 patents
Information
Patent Application
Valeraldehyde and process for its preparation
Publication number
20030149267
Publication date
Aug 7, 2003
Celanese GmbH
Holger Geissler
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Process for the catalytic preparation of N-acylglycine derivatives
Publication number
20030078436
Publication date
Apr 24, 2003
HOLGER GEISSLER
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Valeraldehyde and process for its preparation
Publication number
20020065434
Publication date
May 30, 2002
Holger Geissler
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Process for preparing phenylacetic acid derivatives
Publication number
20020062041
Publication date
May 23, 2002
Clariant GmbH
Holger Geissler
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Process for separating hydrogen chloride from a mixture comprising...
Publication number
20020014399
Publication date
Feb 7, 2002
Clariant GmbH
Holger Geissler
C01 - INORGANIC CHEMISTRY
Information
Patent Application
CATALYTIC PREPARATION PROCESS OF N-ACYLGLYCINE DERIVATIVES
Publication number
20010007911
Publication date
Jul 12, 2001
HOLGER GEISSLER
C07 - ORGANIC CHEMISTRY