Contact lens having peripheral high modulus zones
US8974053B2 · kind B2 · utility
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1References
4Claims
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Assignee
Inventor
Key dates
| Filing date | Jan 31, 2013 |
| Grant date | Mar 10, 2015 |
| Priority date | — |
| Expiry date | Mar 15, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D11/00048
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Soft contact lens having regions of a material forming one or more higher modulus of elasticity zones in the peripheral region of the lenses add stiffness to the contact lenses. This increased stiffness in different zones or regions enable the contact lens to be more easily handled and make it less likely to fold in on itself.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.