Daniel Lougnot

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Mulhouse, FR

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Patents Grantslast 30 patents

Information Patent Grant
Process for obtaining a transparent article with a refractive index...
- Patent number 5,807,906
- Issue date Sep 15, 1998
- Essilor International Compagnie Generale d'Optique
- Dominique Bonvallot
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method of fabricating a lens made of transparent polymer with modul...
- Patent number 5,296,305
- Issue date Mar 22, 1994
- Esslior International (Compagnie Generale d'Optique)
- Dominique Baude
- G02 - OPTICS
Information Patent Grant
Method of manufacture of a lens of transparent polymer having a mod...
- Patent number 5,258,024
- Issue date Nov 2, 1993
- Essilor International (Compaigne Generale d'Optique)
- Pierre Chavel
- G02 - OPTICS