Helmut Bahrmann

Person

D-65926 Frankfurt am Main, DE

People

Patents Grantslast 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
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
Ionic liquids and production and use thereof
- Patent number 6,703,507
- Issue date Mar 9, 2004
- Celanese Chemicals Europe GmbH
- Helmut Bahrmann
- 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
Method for producing aldehydes
- Patent number 6,472,565
- Issue date Oct 29, 2002
- Celanese Chemicals Europe GmbH
- Helmut Bahrmann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing aldehydes in the presence of an aqueous phase...
- Patent number 6,274,774
- Issue date Aug 14, 2001
- Celanese GmbH
- Sandra Bogdanovic
- C07 - ORGANIC CHEMISTRY
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
Catalyst and process for the production of aldehydes by hydroformyl...
- Patent number 6,191,063
- Issue date Feb 20, 2001
- Celanese GmbH
- Sandra Bogdanovic
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Guanidinium phosphanes, their production and their use
- Patent number 6,187,953
- Issue date Feb 13, 2001
- Celanese GmbH
- Othmar Stelzer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Tertiary phosphanes containing alkylene glycol groups
- Patent number 6,160,180
- Issue date Dec 12, 2000
- Celanese Chemicals Europe GmbH
- Steffen Haber
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Catalyst of rhodium and a non-aqueous ligand liquid for preparation...
- Patent number 6,114,272
- Issue date Sep 5, 2000
- Celanese GmbH
- Helmut Bahrmann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Nonaqueous ionic ligand liquids, process for preparing them and the...
- Patent number 6,103,908
- Issue date Aug 15, 2000
- Celanese GmbH
- Helmut Bahrmann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Nitro compound-reducing process
- Patent number 6,054,617
- Issue date Apr 25, 2000
- Clariant GmbH
- Helmut Bahrmann
- 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 preparing aldehydes
- Patent number 6,025,529
- Issue date Feb 15, 2000
- Celanese GmbH
- Helmut Bahrmann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of aldehydes employing catalyst composi...
- Patent number 6,020,532
- Issue date Feb 1, 2000
- Hoechst Aktiengesellschaft
- Helmut Bahrmann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Substituted diphenyldiphosphines and a process for their preparation
- Patent number 5,972,825
- Issue date Oct 26, 1999
- Celanese GmbH
- Dieter Regnat
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for recovery of phosphine oxides and alklylsarylphosphines...
- Patent number 5,932,770
- Issue date Aug 3, 1999
- Hoechst Aktiengesellschaft
- Helmut Bahrmann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Catalyst systems based on rhodium complexes containing diphosphine...
- Patent number 5,922,634
- Issue date Jul 13, 1999
- Hoechst Aktiengesellschaft
- Helmut Bahrmann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Bis ethers containing a 2,2'-biaryl radical and a process for their...
- Patent number 5,874,642
- Issue date Feb 23, 1999
- Hoechst Aktiengesellschaft
- Dieter Regnat
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Substituted diphosphines and a process for their preparation
- Patent number 5,847,200
- Issue date Dec 8, 1998
- Hoechst Aktiengesellschaft
- Helmut Bahrmann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing aldehydes
- Patent number 5,817,884
- Issue date Oct 6, 1998
- 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
Substituted diphenyldiphosphines and a process for their preparation
- Patent number 5,801,287
- Issue date Sep 1, 1998
- Dieter Regnat
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of aldehydes by means of a catalyst sys...
- Patent number 5,801,291
- Issue date Sep 1, 1998
- Hoechst AG
- Helmut Bahrmann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing aldehyes
- Patent number 5,773,667
- Issue date Jun 30, 1998
- Hoechst Aktiengesellschaft
- Helmut Bahrmann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the hydroformylation of olefinically unsaturated compounds
- Patent number 5,756,854
- Issue date May 26, 1998
- Hoechst Aktiengesellschaft
- Helmut Bahrmann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing aldehydes
- Patent number 5,741,941
- Issue date Apr 21, 1998
- Hoechst Aktiengesellschaft
- Helmut Bahrmann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the removal of organic solvents from waste water
- Patent number 5,683,585
- Issue date Nov 4, 1997
- Hoechst Aktiengesellschaft
- Hanswilhelm Bach
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 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
Ionic liquids and production and use thereof
- Publication number 20020161261
- Publication date Oct 31, 2002
- Helmut Bahrmann
- 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...

Helmut Bahrmann

Person

Patents Grantslast 30 patents

Process for preparing sulfonated arylphosphines

Process for preparing sulfonated arylphosphines

Ionic liquids and production and use thereof

Method for producing sulfonated aryl phosphines

Isomeric nonanols and decanols, their preparation, phthalic esters...

Method for producing aldehydes

Process for preparing aldehydes in the presence of an aqueous phase...

Process for preparing aldehydes by hydroformylation

Catalyst and process for the production of aldehydes by hydroformyl...

Guanidinium phosphanes, their production and their use

Tertiary phosphanes containing alkylene glycol groups

Catalyst of rhodium and a non-aqueous ligand liquid for preparation...

Nonaqueous ionic ligand liquids, process for preparing them and the...

Nitro compound-reducing process

Process for the preparation of predominantly unbranched higher prim...

Process for preparing aldehydes

Process for the preparation of aldehydes employing catalyst composi...

Substituted diphenyldiphosphines and a process for their preparation

Process for recovery of phosphine oxides and alklylsarylphosphines...

Catalyst systems based on rhodium complexes containing diphosphine...

Bis ethers containing a 2,2'-biaryl radical and a process for their...

Substituted diphosphines and a process for their preparation

Process for preparing aldehydes

Process for the hydroformylation of olefinically unsaturated compounds

Substituted diphenyldiphosphines and a process for their preparation

Process for the preparation of aldehydes by means of a catalyst sys...

Process for preparing aldehyes

Process for the hydroformylation of olefinically unsaturated compounds

Process for preparing aldehydes

Process for the removal of organic solvents from waste water

Patents Applicationslast 30 patents

Process for preparing sulfonated arylphosphines

Process for preparing sulfonated arylphosphines

Process for preparing sulfonated arylphosphines

Ionic liquids and production and use thereof

Isomeric nonanols and decanols, their preparation, phthalic esters...