Nathaly Vassal

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Paris, FR

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Patents Grantslast 30 patents

Information Patent Grant
Method for preparing a photochromic polyurethane latex and applicat...
- Patent number 7,608,207
- Issue date Oct 27, 2009
- Essilor International Compagnie Generale d'Optique
- Nathaly Vassal
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Method for preparing a photochromic polyurethane latex and applicat...
- Publication number 20040012002
- Publication date Jan 22, 2004
- Nathaly Vassal
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...