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All plastic spectacles
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Patent number 4,135,792
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Issue date Jan 23, 1979
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American Optical Corporation
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Emil W. Deeg
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G02 - OPTICS
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Photochromic gradient lenses
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Patent number 4,101,302
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Issue date Jul 18, 1978
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American Optical Corporation
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David A. Krohn
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C03 - GLASS MINERAL OR SLAG WOOL
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Artificial intraocular lens
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Patent number 4,079,470
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Issue date Mar 21, 1978
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American Optical Corporation
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Emil W. Deeg
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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High strength ophthalmic lens
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Patent number 4,042,405
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Issue date Aug 16, 1977
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American Optical Corporation
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David A. Krohn
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C03 - GLASS MINERAL OR SLAG WOOL
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High strength ophthalmic lens
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Patent number 4,012,131
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Issue date Mar 15, 1977
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American Optical Corporation
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David A. Krohn
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C03 - GLASS MINERAL OR SLAG WOOL
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Artificial intraocular lens
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Patent number 3,996,627
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Issue date Dec 14, 1976
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American Optical Corporation
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Emil W. Deeg
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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High strength ophthalmic lens
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Patent number 3,997,250
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Issue date Dec 14, 1976
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American Optical Corporation
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David A. Krohn
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C03 - GLASS MINERAL OR SLAG WOOL
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-
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Faraday rotation glasses
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Patent number 3,935,020
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Issue date Jan 27, 1976
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American Optical Corporation
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Emil W. Deeg
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C03 - GLASS MINERAL OR SLAG WOOL