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Molds for producing contact lenses
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Patent number 8,292,256
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Issue date Oct 23, 2012
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Johnson & Johnson Vision Care, Inc.
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Changhong Yin
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Molds for producing contact lenses
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Patent number 7,833,443
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Issue date Nov 16, 2010
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Johnson & Johnson Vision Care, Inc.
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Changhong Yin
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL