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Lescar, FR
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last 30 patents
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Patent Grant
Novel n-substituted polyamide type polymers, their method of prepar...
Patent number
4,870,137
Issue date
Sep 26, 1989
Societe Nationale Elf Aquitaine
Denis Lopez
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Grafted ethylene polymers usable more especially as additives for i...
Patent number
4,608,411
Issue date
Aug 26, 1986
Societe Nationale Elf Aquitaine
Gilles Meunier
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process of thermal stabilization of aqueous solutions of polysaccha...
Patent number
4,599,180
Issue date
Jul 8, 1986
Societe Nationale Elf Aquitaine
Lino Vio
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Preparation of polymers of hydroxamic functions
Patent number
4,587,306
Issue date
May 6, 1986
Societe Nationale Elf Aquitaine
Lino Vio
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Graft copolymers of alkyl methacrylates onto cross-linked butadiene...
Patent number
4,567,234
Issue date
Jan 28, 1986
M&T Chemicals Inc.
Gilles Meunier
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Graft copolymers of alkyl methacrylates--alkyl acrylates onto diene...
Patent number
4,542,185
Issue date
Sep 17, 1985
M&T Chemicals Inc.
Gilles Meunier
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method for hindering the scaling by waters
Patent number
4,532,046
Issue date
Jul 30, 1985
Societe Nationale Elf Aquitaine
Gilles Meunier
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Impeding sedimentation of clays in water
Patent number
4,480,067
Issue date
Oct 30, 1984
Societe Nationale Elf Aquitaine
Lino Vio
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE