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Ernst Wiebus
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Oberhausen, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Process for preparing sulfonated arylphosphines
Patent number
7,102,034
Issue date
Sep 5, 2006
Celanese Chemicals Europe GmbH
Michael Riedel
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for recovering rhodium from hydroformylation products
Patent number
6,863,872
Issue date
Mar 8, 2005
Celanese Chemicals Europe GmbH
Ernst Wiebus
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing sulfonated arylphosphines
Patent number
6,864,387
Issue date
Mar 8, 2005
Celanese Chemicals Europe GmbH
Michael Riedel
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Preparation of aldehydes
Patent number
6,700,021
Issue date
Mar 2, 2004
Celanese Chemicals Europe GmbH
Hans Bohnen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for producing sulfonated aryl phosphines
Patent number
6,610,881
Issue date
Aug 26, 2003
Celanese Chemicals Europe
Michael Riedel
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Isomeric nonanols and decanols, their preparation, phthalic esters...
Patent number
6,482,972
Issue date
Nov 19, 2002
Hoechst Aktiengesellschaft
Helmut Bahrmann
C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information
Patent Grant
Process for preparing aldehydes by hydroformylation
Patent number
6,211,414
Issue date
Apr 3, 2001
Celanese GmbH
Sandra Bogdanovic
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of predominantly unbranched higher prim...
Patent number
6,051,743
Issue date
Apr 18, 2000
Hoechst Aktiengesellschaft
Helmut Bahrmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the hydroformylation of olefinically unsaturated compounds
Patent number
5,808,168
Issue date
Sep 15, 1998
Hoechst Aktiengesellschaft
Helmut Bahrmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing pentenals
Patent number
5,684,208
Issue date
Nov 4, 1997
Hoechst Aktiengesellschaft
Helmut Bahrmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Mixtures of isomeric decyl alcohols, phthalates obtainable therefro...
Patent number
5,661,204
Issue date
Aug 26, 1997
Hoechst Aktiengesellschaft
Helmut Bahrmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Mixtures of isomeric decyl alcohols, phthalates obtainable therefro...
Patent number
5,583,250
Issue date
Dec 10, 1996
Hoechst Aktiengesellschaft
Helmut Bahrmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for making a mixture of isomeric decyl alcohols
Patent number
5,516,948
Issue date
May 14, 1996
Hoechst AG
Helmut Bahrmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Decyl alcohol mixtures, phthalic esters obtainable therefrom and th...
Patent number
5,462,986
Issue date
Oct 31, 1995
Hoechst Aktiengesellschaft
Helmut Bahrmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Decyl alcohol mixtures, phthalic esters obtainable therefrom and th...
Patent number
5,463,147
Issue date
Oct 31, 1995
Hoechst Aktiengesellschaft
Helmut Bahrmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Mixtures of isomeric pentanoic acids, esters prepared therefrom, an...
Patent number
5,410,072
Issue date
Apr 25, 1995
Hoechst Aktiengesellschaft
Helmut Bahrmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Decyl alcohol mixtures, phthalic obtainable therefrom, and their us...
Patent number
5,382,716
Issue date
Jan 17, 1995
Hoechst Aktiengesellschaft
Helmut Bahrmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Decyl alcohol mixtures, phthalic esters obtainable therefrom and th...
Patent number
5,369,162
Issue date
Nov 29, 1994
Hoechst Aktiengesellschaft
Helmut Bahrmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Decyl alcohol mixtures, phthalic esters obtainable therefrom and th...
Patent number
5,268,514
Issue date
Dec 7, 1993
Hoechst Aktiengesellschaft
Helmut Bahrmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for separating mixtures of substances contained in an aqueo...
Patent number
5,041,228
Issue date
Aug 20, 1991
Hoechst Aktiengesellschaft
W. A. Herrmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of aldehydes
Patent number
4,879,418
Issue date
Nov 7, 1989
Hoechst Aktiengesellschaft
Hanswilhelm Bach
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of aldehydes
Patent number
4,808,757
Issue date
Feb 28, 1989
Ruhrchemie Aktiengesellschaft
Boy Cornils
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Hydroformylation process
Patent number
4,808,758
Issue date
Feb 28, 1989
Ruhrchemie Aktiengesellschaft
Hanswilhelm Bach
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Rhodium catalysts and methods of preparation and use thereof
Patent number
4,795,727
Issue date
Jan 3, 1989
Ruhrchemie Aktiengesellschaft
Hanswilhelm Bach
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for purification of gases
Patent number
4,711,648
Issue date
Dec 8, 1987
Ruhrechemie Aktiengesellschaft
Werner Konkol
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of 2-ethyl-hexanol
Patent number
4,684,750
Issue date
Aug 4, 1987
Ruhrchemie Aktiengesellschaft
Gunther Kessen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing aldehydes
Patent number
4,593,126
Issue date
Jun 3, 1986
Ruhrchemie Aktiengesellschaft
Boy Cornils
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the hydroformylation of olefins
Patent number
4,533,755
Issue date
Aug 6, 1985
Ruhrchemie Aktiengesellschaft
Boy Cornils
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for purifying N,N-dimethylaminopropylamine
Patent number
4,532,354
Issue date
Jul 30, 1985
Ruhrchemie Aktiengesellschaft
Boy Cornils
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of aldehydes
Patent number
4,523,036
Issue date
Jun 11, 1985
Ruhrchemie Aktiengesellschaft
Boy Cornils
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
Process for preparing sulfonated arylphosphines
Publication number
20060276669
Publication date
Dec 7, 2006
Celanese Chemicals Europe GmbH
Michael Riedel
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Process for preparing sulfonated arylphosphines
Publication number
20050171377
Publication date
Aug 4, 2005
Celanese Chemicals Europe GmbH
Michael Riedel
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Process for preparing sulfonated arylphosphines
Publication number
20040019236
Publication date
Jan 29, 2004
Celanese Chemicals Europe GmbH
Michael Riedel
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Preparation of aldehydes
Publication number
20030083528
Publication date
May 1, 2003
Hans Bohnen
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Method for recovering rhodium from hydroformylation products
Publication number
20030049188
Publication date
Mar 13, 2003
Ernst Wiebus
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Isomeric nonanols and decanols, their preparation, phthalic esters...
Publication number
20020133047
Publication date
Sep 19, 2002
Helmut Bahrmann
C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...