Essilor International
🏢 View company profile →695Patents
624Active
695Granted
61Portfolio score
Filing activity: May 11, 1977 → Dec 1, 2023 · 20 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6325508A | Visual equipment for checking close vision working distance | Physics | 120 | Expired |
| US6318859A | Set of progressive multifocal ophthalmic lenses | Physics | 83 | Expired |
| US4594288A | Optical lenses having a scratch-resistant coating | Emerging Cross-Sectional Technologies | 82 | Expired |
| US5357024A | Method for preparing a polysiloxane and titanate composition for high refractive index coatings | Emerging Cross-Sectional Technologies | 72 | Expired |
| US4644033A | Polyurethane hydrogels and process for their manufacture | Emerging Cross-Sectional Technologies | 57 | Expired |
| US6382789B1 | Toric ophthalmic lenses | Physics | 56 | Expired |
| US5488442A | Progressive multifocal ophthalmic lens | Physics | 48 | Expired |
| US5581347A | Optimization method and device for direct measurement of an optical component | Physics | 47 | Expired |
| US6880931B2 | Ophthalmic lens having a projection insert | Physics | 41 | Expired |
| US6043885A | Fringe deflectometry apparatus and method | Physics | 37 | Expired |
| US5617155A | Method for determining measurement parameters for a spectacle wearer | Physics | 33 | Expired |
| US10649238B2 | Head mounted device intended to be worn by a wearer | Electricity | 31 | Active |
| US7338161B2 | Optical accommodative compensation system | Physics | 31 | Expired |
| US7207675B1 | Ophthalmic lens | Physics | 30 | Active |
| US6596368B1 | Organic substrate having optical layers deposited by magnetron sputtering and method for preparing it | Emerging Cross-Sectional Technologies | 26 | Expired |
| US10548473B2 | Optometry measuring scale | Electricity | 23 | Active |
| US4650616A | Process for making a soft contact lens of natural proteinaceous polymer(s) | Physics | 21 | Expired |
| US7935212B2 | Process for transferring onto a surface of an optical article a layer having a variable index of refraction | Emerging Cross-Sectional Technologies | 20 | Active |
| US6116734A | Ophthalmic lens | Physics | 20 | Expired |
| US6789898B2 | Model for representing an ophthalmic lens surface | Physics | 19 | Expired |
| US5949519A | Multifocal ophthalmic lens | Physics | 17 | Expired |
| US6102544A | Multifocal ophthalmic lens | Physics | 17 | Expired |
| US6473247B1 | Optical lens support and method for using same | Physics | 16 | Expired |
| US5115540A | Spring-loaded hinge | Physics | 16 | Expired |
| US4118898A | Mounting block for mounting a lens in a lens trimming and bevelling machine | Performing Operations; Transporting | 15 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.