Essilor International Cie Generale d'Optique
87Patents
0Active
87Granted
37Portfolio score
Filing activity: Nov 26, 1974 → Nov 21, 1994
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4345824A | Eyeglass frames openable at the bridge | Physics | 155 | Expired |
| US5019098A | Sight-correcting optical component such as an intra-ocular implant or contact lens | Physics | 124 | Expired |
| US4461550A | Progressive ophthalmic lens | Physics | 93 | Expired |
| US4314814A | Method of and apparatus for decorating substrates | Emerging Cross-Sectional Technologies | 83 | Expired |
| US4976534A | Simultaneous vision optical lens for correcting presbyopia | Physics | 81 | Expired |
| US4118853A | Method of making an ophthalmic lens of progressively variable focal power | Emerging Cross-Sectional Technologies | 77 | Expired |
| US4554917A | Laser ophthalmological surgical device | Human Necessities | 54 | Expired |
| US5530491A | Simultaneous vision ophthalmic lens for correcting presbyopia and pair of ophthalmic lenses of this kind for the same wearer | Physics | 53 | Expired |
| US5172143A | Artificial optical lens and method of manufacturing it | Performing Operations; Transporting | 50 | Expired |
| US4286957A | Process of integrating a photochromic substance into an ophthalmic lens and a photochromic lens of organic material | Physics | 47 | Expired |
| US4251474A | Annular gasket for moulding lenses for organic material | Emerging Cross-Sectional Technologies | 43 | Expired |
| US5458820A | Method of making a thermoplastic lens coated with a thermosetting protective layer | Emerging Cross-Sectional Technologies | 40 | Expired |
| US4957506A | Optical system using an ophthalmic lens and an intra-ocular lens to improve the sight of a person suffering from macular degeneration | Physics | 38 | Expired |
| US4517980A | Ophthalmic surgical laser apparatus | Human Necessities | 34 | Expired |
| US5100590A | Method of forming an opthalmic lens from a synthetic material blank | Emerging Cross-Sectional Technologies | 34 | Expired |
| US4211384A | Molding assembly for casting soft contact lenses | Emerging Cross-Sectional Technologies | 33 | Expired |
| USD279795S | Font of type | General | 31 | Expired |
| US5400089A | Eyeglass frame with improved securement of lenses therein | Physics | 31 | Expired |
| US4596091A | Grinding machine for forming the edge of an ophthalmic lens | Emerging Cross-Sectional Technologies | 29 | Expired |
| US4300821A | Photochromic ophthalmic lens of organic materials | Physics | 28 | Expired |
| US4879072A | Method of manufacturing natural protein polymer contact lenses by molding and cross-linking | Performing Operations; Transporting | 27 | Expired |
| US4978211A | Large diameter positive power ophthalmic lens | Physics | 27 | Expired |
| US4778266A | Progressive multifocal ophthalmic lens | Physics | 26 | Expired |
| US4569807A | Method and apparatus for molding optical components | Emerging Cross-Sectional Technologies | 25 | Expired |
| US4322138A | Support member for glasses frame, specially for use under helmet | Physics | 21 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.