Christian Harsigny

Follow

Person

Yerres, FR

People

Patents Grantslast 30 patents

Information Patent Grant
Ophthalmic lens
- Patent number 6,116,734
- Issue date Sep 12, 2000
- Essilor International
- Claude Pedrono
- G02 - OPTICS
Information Patent Grant
Progressive multifocal ophthalmic lens
- Patent number 5,488,442
- Issue date Jan 30, 1996
- Essilor International
- Christian Harsigny
- G02 - OPTICS
Information Patent Grant
Progressive opthalmic lenses and method of facilitating their manuf...
- Patent number 5,235,359
- Issue date Aug 10, 1993
- Essilor International Cie Generale d'Optique
- Jean-Pierre Chauveau
- G02 - OPTICS
Information Patent Grant
Large diameter positive power ophthalmic lens
- Patent number 4,978,211
- Issue date Dec 18, 1990
- Essilor International Cie Generale d'Optique
- Daniel Cornu
- G02 - OPTICS
Information Patent Grant
Ophthalmic lens having an aspheric surface
- Patent number 4,279,480
- Issue date Jul 21, 1981
- Essilor International "Cie Generale d'Optique"
- Bruno Bettiol
- G02 - OPTICS