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Guy Fleche
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Merville, FR
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Patents Grants
last 30 patents
Information
Patent Grant
Method for preparing a lactic acid ester composition and use thereo...
Patent number
7,342,050
Issue date
Mar 11, 2008
Roquette Freres
Patrick Fuertes
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for purifying a composition containing at least one internal...
Patent number
7,122,661
Issue date
Oct 17, 2006
Roquette Freres
Guy Fleche
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the conversion of organic materials, particularly sacch...
Patent number
6,500,649
Issue date
Dec 31, 2002
Roquette Freres
Catherine Fouache
C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information
Patent Grant
Method of preparing a mixture of mannitol and sorbitol by continuou...
Patent number
6,476,218
Issue date
Nov 5, 2002
Roquette Freres
Jean-Christophe Choque
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the manufacture of D-erythrose
Patent number
6,300,494
Issue date
Oct 9, 2001
Roquette Freres
Guy Fleche
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Continuous process for the preparation of a high-purity hydrogenate...
Patent number
6,297,409
Issue date
Oct 2, 2001
Roquette Freres
Jean-Christophe Choque
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Glucuronyl arabinarates and process for producing them
Patent number
5,981,742
Issue date
Nov 9, 1999
Roquette Freres
Guy Fleche
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Decarboxylation process for 2-ketoaldonic acids
Patent number
5,872,247
Issue date
Feb 16, 1999
Guy Fleche
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the oxidation of sugars
Patent number
5,831,043
Issue date
Nov 3, 1998
Freres; Roquette
Guy Fleche
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the alkaline oxidative degradation of reducing sugars
Patent number
5,817,780
Issue date
Oct 6, 1998
Freres; Roquette
Guy Fleche
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the manufacture of xylaric acid and uses thereof
Patent number
5,731,467
Issue date
Mar 24, 1998
Roquette Freres
Guy Fleche
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Biodegradable moulding compositions comprising a starch, a biodegra...
Patent number
5,703,160
Issue date
Dec 30, 1997
Solvay S.A.
Claude Dehennau
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Thermoformable compounds, their process of preparation and their us...
Patent number
5,360,473
Issue date
Nov 1, 1994
Roquette Freres
Guy Fleche
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Manufacturing process for paper
Patent number
5,129,989
Issue date
Jul 14, 1992
Roquette Freres
Serge Gosset
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
High purity alditol diacetals, free from organic solvent traces and...
Patent number
5,023,354
Issue date
Jun 11, 1991
Roquette Freres
Jean-Paul Salome
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the oxidation of di-, tri-, Oligo- and polysaccharides...
Patent number
4,985,553
Issue date
Jan 15, 1991
Roquette Freres
Patrick M. Fuertes
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the oxidation of aldoses, catalyst used in said process...
Patent number
4,845,208
Issue date
Jul 4, 1989
Patrick Fuertes
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Cationic additive for the manufacture of paper
Patent number
4,613,407
Issue date
Sep 23, 1986
Roquette Freres
Michel Huchette
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for manufacturing 5-hydroxymethylfurfural
Patent number
4,590,283
Issue date
May 20, 1986
Roquette Freres
Antoine Gaset
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of ketones corresponding to 1,4-3,6-dia...
Patent number
4,543,168
Issue date
Sep 24, 1985
Roquette Freres
Guy Fleche
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Grant
Process for manufacturing 5-hydroxymethylfurfural
Patent number
4,339,387
Issue date
Jul 13, 1982
Roquette Freres
Guy Fleche
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the depolymerization of starch by irraciation and produ...
Patent number
4,115,146
Issue date
Sep 19, 1978
Commissariat a l'Energie Atomique
Louis Saint-Lebe
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Patents Applications
last 30 patents
Information
Patent Application
Method for purifying a composition containing at least one internal...
Publication number
20040110969
Publication date
Jun 10, 2004
Guy Fleche
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Process for the conversion of organic materials, particularly sacch...
Publication number
20010003651
Publication date
Jun 14, 2001
ROQUETTE FRERES
Catherine Fouache
C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...