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Patent applications and USPTO patent grants for Chang; Hsia-Hao.The latest application filed is for "colorant composition for colored silicone hydrogel contact lens, a colored silicone hydrogel contact lens comprising the same an".
Patent | Date |
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Colorant Composition For Colored Silicone Hydrogel Contact Lens, A Colored Silicone Hydrogel Contact Lens Comprising The Same An App 20200110283 - Jan; Fan-Dan ;   et al. | 2020-04-09 |
Colorant Composition For A Colored Contact Lens, A Colored Contact Lens Comprising The Same And A Method Of Modifying A Colorant App 20200109275 - Jan; Fan-Dan ;   et al. | 2020-04-09 |
Method For Manufacturing A Colored Contact Lens App 20150338681 - LIU; Pei-Yi ;   et al. | 2015-11-26 |
Polymerizable yellow dye for manufacturing ophthalmic lens Grant 9,085,697 - Jan , et al. July 21, 2 | 2015-07-21 |
Polymerizable Yellow Dye For Manufacturing Ophthalmic Lens App 20140378672 - JAN; Fan-Dan ;   et al. | 2014-12-25 |
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