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Menicon Co Ltd

Menicon Co
Active Patents
0
Total Holdings
5

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US5266074A Intraocular lens having annular groove formed in its periph… Expired / Lapsed 1992-09-15 1993-11-30 5 Details
US5091121A Production of a balloon for an intraocular lens Expired / Lapsed 1990-10-01 1992-02-25 15 Details
US4157892A Method of coloring water-absorbable plastics and colored wa… Expired / Lapsed 1976-10-12 1979-06-12 29 Details
US4139513A Copolymer for soft contact lens, its preparation and soft c… Expired / Lapsed 1978-03-20 1979-02-13 15 Details
US3813447A Hydrophilic synthetic high polymers for soft contact lenses… Expired / Lapsed 1971-09-15 1974-05-28 0 Details