Thomas Wessel

Person

Maintal, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Method of making halophthalic acids and halophthalic anhydrides
- Patent number 7,732,559
- Issue date Jun 8, 2010
- SABIC Innovative Plastics IP B.V.
- Robert Edgar Colborn
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method of making halophthalic acids and halophthalic anhydrides
- Patent number 7,541,489
- Issue date Jun 2, 2009
- SABIC Innovative Plastics IP B.V.
- Robert Edgar Colborn
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of 1,3-di-halo-substituted benzene derivatives
- Patent number 7,078,571
- Issue date Jul 18, 2006
- Clariant GmbH
- Stefan Brand
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing substituted benzoyl chlorides
- Patent number 6,844,468
- Issue date Jan 18, 2005
- Clariant GmbH
- Lars Bierer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Aminophosphonium compounds
- Patent number 6,645,904
- Issue date Nov 11, 2003
- Clariant GmbH
- Berthold Schiemenz
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Aminophosphonium compounds
- Patent number 6,465,643
- Issue date Oct 15, 2002
- Clariant GmbH
- Berthold Schiemenz
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Mixtures comprising tetrakis(pyrrolidino/piperdino)phosphonium salts
- Patent number 6,407,029
- Issue date Jun 18, 2002
- Clariant GmbH
- Berthold Schiemenz
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Two-step production of 3-chloro-4-fluoro-benzoyl chloride by chlori...
- Patent number 6,187,952
- Issue date Feb 13, 2001
- Clariant GmbH
- Ralf Pfirmann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for producing compounds containing fluorine, in particular f...
- Patent number 6,166,242
- Issue date Dec 26, 2000
- Aventis Research & Technologies GmbH & Co. KG
- Wolfgang Appel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of fluorinated aromatic compounds
- Patent number 6,114,589
- Issue date Sep 5, 2000
- Clariant GmbH
- Thomas Schach
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Catalyst comprising an amidophosphonium salt for halex reactions
- Patent number 6,103,659
- Issue date Aug 15, 2000
- Aventis Research & Technologies GmbH & Co. KG
- Sergej Pasenok
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing 4, 5-dichloro-2-methylbenzoic acid
- Patent number 5,886,218
- Issue date Mar 23, 1999
- Hoechst Aktiengesellschaft
- Thomas Wessel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing ortho-nitrobenzonitriles
- Patent number 5,705,674
- Issue date Jan 6, 1998
- Hoechst Aktiengesellschaft
- Thomas Wessel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing 4-bromophenyl alkyl ethers
- Patent number 5,654,493
- Issue date Aug 5, 1997
- Hoechst Aktiengesellschaft
- Thomas Wessel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of aromatic methyl methoxycarboxylates
- Patent number 5,424,479
- Issue date Jun 13, 1995
- Cassella AG
- Rolf Muller
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of methyl 5-bromo-6-methoxy-1-naphthoate
- Patent number 5,412,150
- Issue date May 2, 1995
- Cassella AG
- Thomas Wessel
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
METHOD OF MAKING HALOPHTHALIC ACIDS AND HALOPHTHALIC ANHYDRIDES
- Publication number 20080275211
- Publication date Nov 6, 2008
- Robert Edgar Colborn
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Phosphazenium salt mixtures containing hexakis(amino)diphosphazeniu...
- Publication number 20060241300
- Publication date Oct 26, 2006
- Thomas Wessel
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Method of making halophthalic acids and halophthalic anhydrides
- Publication number 20060004223
- Publication date Jan 5, 2006
- General Electric Company
- Robert Edgar Colborn
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Method of making halophthalic acids and halophthalic anhydrides
- Publication number 20060004224
- Publication date Jan 5, 2006
- General Electric Company
- Robert Edgar Colborn
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Preparation of 1,3-di-halo-substituted benzene derivatives
- Publication number 20040087816
- Publication date May 6, 2004
- Clariant GmbH
- Stefan Brand
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Novel aminophosphonium compounds
- Publication number 20040029723
- Publication date Feb 12, 2004
- Clariant GmbH
- Berthold Schiemenz
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Process for preparing substituted benzoyl chlorides
- Publication number 20030130537
- Publication date Jul 10, 2003
- Clariant GmbH
- Lars Bierer
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Novel aminophosphonium compounds
- Publication number 20020193592
- Publication date Dec 19, 2002
- Clariant GmbH
- Berthold Schiemenz
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Process for preparing substituted benzoyl chlorides
- Publication number 20020040158
- Publication date Apr 4, 2002
- Clariant GmbH
- Lars Bierer
- C07 - ORGANIC CHEMISTRY

Thomas Wessel

Person

Patents Grantslast 30 patents

Method of making halophthalic acids and halophthalic anhydrides

Method of making halophthalic acids and halophthalic anhydrides

Preparation of 1,3-di-halo-substituted benzene derivatives

Process for preparing substituted benzoyl chlorides

Aminophosphonium compounds

Aminophosphonium compounds

Mixtures comprising tetrakis(pyrrolidino/piperdino)phosphonium salts

Two-step production of 3-chloro-4-fluoro-benzoyl chloride by chlori...

Method for producing compounds containing fluorine, in particular f...

Process for the preparation of fluorinated aromatic compounds

Catalyst comprising an amidophosphonium salt for halex reactions

Process for preparing 4, 5-dichloro-2-methylbenzoic acid

Process for preparing ortho-nitrobenzonitriles

Process for preparing 4-bromophenyl alkyl ethers

Process for the preparation of aromatic methyl methoxycarboxylates

Process for the preparation of methyl 5-bromo-6-methoxy-1-naphthoate

Patents Applicationslast 30 patents

METHOD OF MAKING HALOPHTHALIC ACIDS AND HALOPHTHALIC ANHYDRIDES

Phosphazenium salt mixtures containing hexakis(amino)diphosphazeniu...

Method of making halophthalic acids and halophthalic anhydrides

Method of making halophthalic acids and halophthalic anhydrides

Preparation of 1,3-di-halo-substituted benzene derivatives

Novel aminophosphonium compounds

Process for preparing substituted benzoyl chlorides

Novel aminophosphonium compounds

Process for preparing substituted benzoyl chlorides