Invention Grant
- Patent Title: Method of manufacturing silicone hydrogel contact lenses having reduced rates of evaporation
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Application No.: US17474350Application Date: 2021-09-14
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Publication No.: US11650352B2Publication Date: 2023-05-16
- Inventor: Paul Richardson , Nancy J. Keir , Xinfeng Shi , James Mun
- Applicant: CooperVision International Limited
- Applicant Address: GB Fareham
- Assignee: COOPERVISION INTERNATIONAL LIMITED
- Current Assignee: COOPERVISION INTERNATIONAL LIMITED
- Current Assignee Address: GB Fareham
- Agency: Kilyk & Bowersox, P.L.L.C.
- Main IPC: G02B1/04
- IPC: G02B1/04
Abstract:
A wettable silicone hydrogel contact lens having a low ionoflux and low evaporation is manufactured by curing a silicone hydrogel polymerizable composition in a contact lens mold comprising front and back lens-forming surfaces, where one of the lens-forming surfaces has a higher polarity than the other lens-forming surface.
Public/Granted literature
- US20210405259A1 Method Of Manufacturing Silicone Hydrogel Contact Lenses Having Reduced Rates Of Evaporation Public/Granted day:2021-12-30
Information query
