Inventor
HARSIGNY CHRISTIAN
5 patents
Patents
5 patentsUS5488442AJan 30, 1996
Progressive multifocal ophthalmic lens
ESSILOR INT87 citations94
US4978211ADec 18, 1990
Large diameter positive power ophthalmic lens
ESSILOR INT32 citations88
US6116734ASep 12, 2000
Ophthalmic lens
ESSILOR INT33 citations87
US4279480AJul 21, 1981
Ophthalmic lens having an aspheric surface
ESSILOR INT23 citations78
US5235359AAug 10, 1993
Progressive opthalmic lenses and method of facilitating their manufacture
ESSILOR INT8 citations67