INNOTECH LTD.
63Patents
2Active
63Granted
41Portfolio score
Filing activity: Nov 22, 1974 → Aug 25, 2016 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5219497A | Method for manufacturing lenses using thin coatings | Emerging Cross-Sectional Technologies | 182 | Expired |
| US5861934A | Refractive index gradient lens | Physics | 159 | Expired |
| US5531940A | Method for manufacturing photochromic lenses | Performing Operations; Transporting | 142 | Expired |
| US5512371A | Composite lenses | Emerging Cross-Sectional Technologies | 105 | Expired |
| US5470892A | Polymerizable resin for forming clear, hard plastics | Physics | 87 | Expired |
| US5702819A | Composite lenses | Emerging Cross-Sectional Technologies | 86 | Expired |
| US5178800A | Method for forming plastic optical quality spectacle lenses | Performing Operations; Transporting | 85 | Expired |
| US5789015A | Impregnation of plastic substrates with photochromic additives | Chemistry; Metallurgy | 80 | Expired |
| US5914174A | Lens or semi-finished blank comprising photochromic resin compositions | Emerging Cross-Sectional Technologies | 73 | Expired |
| US5859685A | Achromatic ophthalmic lenses | Physics | 70 | Expired |
| US5872613A | Method of manufacturing contact lenses | Physics | 61 | Expired |
| US6747264B2 | Changeable gain amplifier, solid-state imaging device and optical signal reading method | Electricity | 45 | Expired |
| US5528321A | Method of manufacturing contact lenses | Physics | 43 | Expired |
| US5406341A | Toric single vision, spherical or aspheric bifocal, multifocal or progressive contact lenses and method of manufacturing | Physics | 43 | Expired |
| US6072570A | Image quality mapper for progressive eyeglasses | Physics | 41 | Expired |
| US6149271A | Progressive addition lenses | Physics | 40 | Expired |
| US6842023B2 | Probe card apparatus and electrical contact probe having curved or sloping blade profile | Physics | 32 | Expired |
| US6000798A | Ophthalmic optic devices | Physics | 32 | Expired |
| US5598234A | Method of manufacturing toric single vision, spherical or aspheric bifocal, multifocal or progressive contact lenses | Physics | 31 | Expired |
| US6504194B1 | Solid state imaging device, method of manufacturing the same, and solid state imaging system | Electricity | 28 | Expired |
| US5851585A | Impregnation of plastic substrates with photochromic additives | Chemistry; Metallurgy | 25 | Expired |
| US6448596B1 | Solid-state imaging device | Electricity | 23 | Expired |
| US6148626A | Chiller apparatus | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US5907386A | Method of manufacturing a progressive optic | Physics | 20 | Expired |
| US5517259A | Method of manufacturing toric single vision, spherical or aspheric bifocal, multifocal or progressive contact lenses | Physics | 17 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.