Marcel P. Ropars

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Paris, FR

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Patents Grantslast 30 patents

Information Patent Grant
Textile preforms sheathed in a boron nitride coating, composites in...
- Patent number 6,284,358
- Issue date Sep 4, 2001
- Societe Nationale d'Etude et de Construction de Moteurs d'Aviation - S.N.E.M....
- Michel Parlier
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Thermoset polymers and prepolymers with rapid curing, obtained by p...
- Patent number 4,642,264
- Issue date Feb 10, 1987
- Societe Nationale des Poudres et Explosifs
- Marcel Ropars
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Thermoset polymers and prepolymers obtained by polycondensation of...
- Patent number 4,525,573
- Issue date Jun 25, 1985
- Societe Nationale des Poudres et Explosifs
- Marcel Ropars
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Thermosetting polymers and prepolymers and a process for making the...
- Patent number 3,994,862
- Issue date Nov 30, 1976
- Office National d'Etudes et de Recherches Aerospatiales (O.N.E.R.A.)
- Marcel P. Ropars
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...