Theodor Papenfuhs

Person

Frankfurt, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of 4-alkylsulfonyl-1-alkyl-2-chlorobenz...
- Patent number 6,258,984
- Issue date Jul 10, 2001
- Clariant GmbH
- Georg Folz
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing quinazoline derivatives
- Patent number 6,001,831
- Issue date Dec 14, 1999
- Clariant GmbH
- Theodor Papenfuhs
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
2-chloro-5-fluoro-4-morpholinonitrobenzene and 2-chloro-5-fluoro-4-...
- Patent number 5,990,309
- Issue date Nov 23, 1999
- Clariant GmbH
- Thomas Schach
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Monoesters of carboxymethylene anthranilic acids and process for pr...
- Patent number 5,973,189
- Issue date Oct 26, 1999
- Clariant GmbH
- Theodor Papenfuhs
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing N-carboxymethylene-4-chloro-anthranilic acid...
- Patent number 5,945,556
- Issue date Aug 31, 1999
- Clariant GmbH
- Theodor Papenfuhs
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of n-carboxyalkyl-3-fluoro-4-dialkylami...
- Patent number 5,917,037
- Issue date Jun 29, 1999
- Clariant GmbH
- Thomas Schach
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of esters of aromatic carboxylic acid
- Patent number 5,874,608
- Issue date Feb 23, 1999
- Hoechst Aktiengesellschaft
- Ralf Pfirmann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of N-(2-carboxy-5-chloro-phenyl)glycine
- Patent number 5,821,385
- Issue date Oct 13, 1998
- Hoechst Aktiengesellschaft
- Stefan Krause
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of N-carboxymethyleneanthranilic acid
- Patent number 5,811,572
- Issue date Sep 22, 1998
- Hoechst Aktiengesellschaft
- Theodor Papenfuhs
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of esters of aromatic carboxylic acids
- Patent number 5,744,628
- Issue date Apr 28, 1998
- Hoechst Aktiengesellschaft
- Ralf Pfirmann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of salts of substituted or unsubstitute...
- Patent number 5,723,658
- Issue date Mar 3, 1998
- Hoechst Aktiengesellschaft
- Ralf Pfirmann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Hydroxycarboxylic acid anilides
- Patent number 5,712,414
- Issue date Jan 27, 1998
- Hoechst Aktiengesellschaft
- Andreas Dierdorf
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of O-acylglycolanilides
- Patent number 5,705,680
- Issue date Jan 6, 1998
- Hoechst Aktiengesellschaft
- Andreas Dierdorf
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of o-acyloxycarboxanilides
- Patent number 5,693,852
- Issue date Dec 2, 1997
- Hoechst Aktiengesellschaft
- Andreas Dierdorf
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of hydroxycarboxanilides
- Patent number 5,631,403
- Issue date May 20, 1997
- Hoechst AG
- Andreas Dierdorf
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of glycoloylanilides
- Patent number 5,616,799
- Issue date Apr 1, 1997
- Hoechst Aktiengesellschaft
- Siegfried Planker
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of 5-fluoroanthranilic alkyl esters and...
- Patent number 5,543,550
- Issue date Aug 6, 1996
- Hoechst Aktiengesellschaft
- Jochen Rapp
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of 5-fluoroanthranilic acid
- Patent number 5,523,472
- Issue date Jun 4, 1996
- Hoechst Aktiengesellschaft
- Freimund Rohrscheid
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing 1,3-difluorobenzene
- Patent number 5,504,264
- Issue date Apr 2, 1996
- Hoechst Aktiengesellschaft
- Thomas Schach
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing multiply fluorinated nitrobenzenes
- Patent number 5,502,260
- Issue date Mar 26, 1996
- Hoechst Aktiengesellschaft
- Thomas Schach
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing fluoroanilines
- Patent number 5,498,794
- Issue date Mar 12, 1996
- Hoechst Aktiengesellschaft
- Thomas Schach
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of aromatic fluoro compounds
- Patent number 5,498,807
- Issue date Mar 12, 1996
- Hoechst Aktiengesellschaft
- Thomas Schach
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
4-alkyl-3-chlorobenzenesulfinic acids, 4-alkyl-3-chlorobenzenesulfo...
- Patent number 5,498,798
- Issue date Mar 12, 1996
- Hoechst AG
- Georg Folz
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Catalyst for nucleophilic aromatic substitutions
- Patent number 5,492,875
- Issue date Feb 20, 1996
- Hoechst AG
- Thomas Schach
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of 4-alkoxy-3,5,6-trifluoro-phthalic ac...
- Patent number 5,488,152
- Issue date Jan 30, 1996
- Hoechst Aktiengesellschaft
- Ralf Pfirmann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
2,3-difluoro-6-nitrobenzonitrile and 2-chloro-5,6-difluorobenzonitr...
- Patent number 5,478,963
- Issue date Dec 26, 1995
- Hoechst Aktiengesellschaft
- Ralf Pfirmann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing fluoronitrobenzenes
- Patent number 5,476,976
- Issue date Dec 19, 1995
- Hoechst AG
- Thomas Schach
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of chlorinated 4,5-difluorobenzoic acid...
- Patent number 5,473,095
- Issue date Dec 5, 1995
- Hoechst Aktiengesellschaft
- Ralf Pfirmann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of substituted 2,3-difluoropyridines
- Patent number 5,468,863
- Issue date Nov 21, 1995
- Hoechst Aktiengesellschaft
- Ralf Pfirmann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing fluorobenzonitriles
- Patent number 5,466,859
- Issue date Nov 14, 1995
- Hoechst Aktiengesellschaft
- Thomas Schach
- C07 - ORGANIC CHEMISTRY

Theodor Papenfuhs

Person

Patents Grantslast 30 patents

Process for the preparation of 4-alkylsulfonyl-1-alkyl-2-chlorobenz...

Process for producing quinazoline derivatives

2-chloro-5-fluoro-4-morpholinonitrobenzene and 2-chloro-5-fluoro-4-...

Monoesters of carboxymethylene anthranilic acids and process for pr...

Process for preparing N-carboxymethylene-4-chloro-anthranilic acid...

Process for the preparation of n-carboxyalkyl-3-fluoro-4-dialkylami...

Process for the preparation of esters of aromatic carboxylic acid

Process for the preparation of N-(2-carboxy-5-chloro-phenyl)glycine

Process for the preparation of N-carboxymethyleneanthranilic acid

Process for the preparation of esters of aromatic carboxylic acids

Process for the preparation of salts of substituted or unsubstitute...

Hydroxycarboxylic acid anilides

Process for the preparation of O-acylglycolanilides

Process for the preparation of o-acyloxycarboxanilides

Process for the preparation of hydroxycarboxanilides

Process for the preparation of glycoloylanilides

Process for the preparation of 5-fluoroanthranilic alkyl esters and...

Process for the preparation of 5-fluoroanthranilic acid

Process for preparing 1,3-difluorobenzene

Process for preparing multiply fluorinated nitrobenzenes

Process for preparing fluoroanilines

Process for the preparation of aromatic fluoro compounds

4-alkyl-3-chlorobenzenesulfinic acids, 4-alkyl-3-chlorobenzenesulfo...

Catalyst for nucleophilic aromatic substitutions

Process for the preparation of 4-alkoxy-3,5,6-trifluoro-phthalic ac...

2,3-difluoro-6-nitrobenzonitrile and 2-chloro-5,6-difluorobenzonitr...

Process for preparing fluoronitrobenzenes

Process for the preparation of chlorinated 4,5-difluorobenzoic acid...

Process for the preparation of substituted 2,3-difluoropyridines

Process for preparing fluorobenzonitriles