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Maurice Charpenel
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Lyons, FR
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last 30 patents
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Patent Grant
Detersive polyanhydroaspartic acids and biodegradable hydrolysates...
Patent number
5,536,813
Issue date
Jul 16, 1996
Rhone-Poulenc Chimie
Maurice Charpenel
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Patent Grant
Boron/nitrogen preceramic polymers and boron nitride ceramic materi...
Patent number
5,162,558
Issue date
Nov 10, 1992
Rhone-Poulenc Chimie
Pierre Ardaud
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES