MENICON CO., LTD.
273Patents
88Active
273Granted
49Portfolio score
Filing activity: Nov 3, 1977 → Apr 8, 2022 · 37 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4954586A | Soft ocular lens material | Physics | 199 | Expired |
| US5346946A | Ocular lens material | Human Necessities | 180 | Expired |
| US6142625A | Toric multifocal lens having different astigmatism corrective optical powers in respective vision correction regions, and method of producing the same | Physics | 152 | Expired |
| US5275624A | Device for inhibiting aftercataract | Human Necessities | 138 | Expired |
| US5416132A | Ocular lens material | Physics | 132 | Expired |
| US5171320A | Intraocular lens having annular groove formed in its peripheral portion | Human Necessities | 118 | Expired |
| US5035710A | Balloon for an intraocular lens and processes for its production | Performing Operations; Transporting | 95 | Expired |
| US5213579A | Intraocular lens having balloon member and tube filled with gel | Human Necessities | 95 | Expired |
| US5870480A | Multichannel active matrix encoder and decoder with maximum lateral separation | Electricity | 91 | Expired |
| US4158236A | Electronic dictionary and language interpreter | Physics | 75 | Expired |
| US4218760A | Electronic dictionary with plug-in module intelligence | Physics | 74 | Expired |
| US5906937A | Culture skin and process for preparing the same | Chemistry; Metallurgy | 72 | Expired |
| US5136650A | Sound reproduction | Electricity | 71 | Expired |
| US6057148A | Apparatus for preparing skin cell culture | Chemistry; Metallurgy | 71 | Expired |
| US6043089A | Skin culture and process for preparing the same | Chemistry; Metallurgy | 66 | Expired |
| US5422687A | Contact lens wherein central correction region has a center 0.2-2.4mm offset from lens geometric center and a diameter of 0.8-3.5mm | Physics | 62 | Expired |
| US4366873A | Electronic scale for use in a weight control program | Emerging Cross-Sectional Technologies | 60 | Expired |
| US6610350B2 | Method of modifying ophthalmic lens surface by plasma generated at atmospheric pressure | Chemistry; Metallurgy | 60 | Expired |
| US5145884A | Ultraviolet-hardenable adhesive | Chemistry; Metallurgy | 57 | Expired |
| US6391055B1 | Artificial cornea | Human Necessities | 52 | Expired |
| US6260966A | Multifocal ocular lens | Physics | 52 | Expired |
| US6509555B1 | Hand held induction tool | Performing Operations; Transporting | 51 | Expired |
| US6326448A | Soft intraocular lens material | Human Necessities | 51 | Expired |
| US5796844A | Multichannel active matrix sound reproduction with maximum lateral separation | Electricity | 49 | Expired |
| US5314439A | Host cornea marking device | Human Necessities | 48 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.