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last 30 patents
Information
Patent Grant
Method for purifying adipic acid by crystallization
Patent number
6,538,156
Issue date
Mar 25, 2003
Rhodia Fiber & Resin Intermediates
Eric B. Henriet
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for preparing acetic acid and/or methyl acetate by isomeriza...
Patent number
6,395,927
Issue date
May 28, 2002
Acetex Chimie
Carl Patois
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Pentenoic acid hydroxycarbonylation method
Patent number
6,372,942
Issue date
Apr 16, 2002
Rhodia Fiber & Resin Intermediates
Jacques Brivet
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for preparing acetic acid and/or methyl acetate by methyl fo...
Patent number
6,232,490
Issue date
May 15, 2001
Acetex Chimie
Carl Patois
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for purifying adipic acid in water
Patent number
6,222,069
Issue date
Apr 24, 2001
Rhodia Fiber & Resin Intermediates
Eric B. Henriet
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the hydroxycarbonylation of pentenoic acids
Patent number
6,008,408
Issue date
Dec 28, 1999
Rhone-Poulenc Chimie
Philippe Denis
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of carboxylic acids by carbonylation in...
Patent number
5,973,197
Issue date
Oct 26, 1999
BP Chemicals Limited
Philippe Denis
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Preparation of transition metal/phosphine catalysts by hydrogen red...
Patent number
5,908,805
Issue date
Jun 1, 1999
R.P. Fiber & Resin Intermediates
Marc Huser
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Preparation of carboxylic acids or related esters by carbonylation...
Patent number
5,883,289
Issue date
Mar 16, 1999
Acetex Chimie
Philippe Denis
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Electrochemical synthesis of transition metal/phosphine catalysts
Patent number
5,876,587
Issue date
Mar 2, 1999
Rhone-Poulenc Chimie
Dominique Horbez
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Process for the hydrocyanation of organic compounds containing ethy...
Patent number
5,856,555
Issue date
Jan 5, 1999
Rhone-Poulenc Fiber & Resin Intermediates
Marc Huser
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of carboxylic acids or the correspondin...
Patent number
5,773,642
Issue date
Jun 30, 1998
Acetex Chimie
Philippe Denis
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for preparing carboxylic acids by carbonylation in the prese...
Patent number
5,770,768
Issue date
Jun 23, 1998
Acetex Chimie
Philippe Denis
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Preparation of pentenoic acids via hydroxycarbonylation of butadiene
Patent number
5,763,655
Issue date
Jun 9, 1998
R.P. Fiber & Resin Intermediates
Carl Patois
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Electrochemical synthesis of transition metal/phosphine catalyst co...
Patent number
5,679,237
Issue date
Oct 21, 1997
R.P. Fiber & Resin Intermediates
Alex Chamard
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Rhodium/iridium catalyzed synthesis of carboxylic acids or esters t...
Patent number
5,625,094
Issue date
Apr 29, 1997
Rhone-Poulenc Chimie
Dominique Nobel
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Hydroxycarbonylation of butadiene
Patent number
5,625,096
Issue date
Apr 29, 1997
Rhone-Poulenc Chimie
Phillipe Denis
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Separation of aliphatic diacids from adipic acid admixtures thereof
Patent number
5,587,056
Issue date
Dec 24, 1996
Rhone-Poulenc Chimie
Philippe Denis
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Hydrocyanation of olefinically unsaturated nitriles into dinitrile...
Patent number
5,488,129
Issue date
Jan 30, 1996
Rhone-Poulenc Chimie
Marc Huser
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Isomerization of 2-methyl-3-butenenitrile
Patent number
5,486,643
Issue date
Jan 23, 1996
Rhone-Poulenc Chimie
Marc Huser
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Preparation of unsaturated carboxylic acids by carbonylation of all...
Patent number
5,380,938
Issue date
Jan 10, 1995
Rhone-Poulenc Chimie
Philippe Denis
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Linear dicarbonylation of difunctionalized butenes
Patent number
5,312,969
Issue date
May 17, 1994
Rhone-Poulenc Chimie
Marc Huser
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Preparation of adipic acid by hydrocarboxylation of pentenoic acids
Patent number
5,312,979
Issue date
May 17, 1994
Rhone-Poulenc Chimie
Philippe Denis
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Diesters of hexene-1,6-dioic acids produced from 1,2-dialkoxy-3-but...
Patent number
5,198,573
Issue date
Mar 30, 1993
Rhone-Poulenc Chimie
Helene Deweerdt
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Preparation of .beta., .gamma.-unsaturated carboxylic acids
Patent number
5,081,292
Issue date
Jan 14, 1992
Rhone-Poulenc Chimie
Philippe Denis
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of dialkyl malonates
Patent number
5,026,900
Issue date
Jun 25, 1991
Rhone-Poulenc
Philippe Coste
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Preparation of alkyl carboxylates by hydrocarbonylation
Patent number
4,997,978
Issue date
Mar 5, 1991
Rhone-Poulenc Industries
Jean Gauthier-Lafaye
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of alkaline phenylpyrovate
Patent number
4,997,979
Issue date
Mar 5, 1991
Rhone-Poulenc Chimie
Phillipe Coste
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of aromatic acid
Patent number
4,990,657
Issue date
Feb 5, 1991
Rhone-Poulenc Chimie
Norbert Bluthe
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Preparation of aromatic aldehydes
Patent number
4,978,801
Issue date
Dec 18, 1990
Rhone-Poulenc Chimie
Norbert Bluthe
C07 - ORGANIC CHEMISTRY