Silicone hydrogel lens with a covalently attached coating
US8557334B2 · kind B2 · utility
12Cited by
106References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2010 |
| Grant date | Oct 15, 2013 |
| Priority date | — |
| Expiry date | Jan 9, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D11/00865
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention provides a cost-effective method for making a silicone hydrogel contact lens having a hydrophilic coating thereon that is covalently attached to the lens and has a good hydrophilicity, intactness and durability. The invention also provides a silicone hydrogel contact lenses having a hydrophilic coating consisting of a prime coating covalently attached to the contact lens and a top coating covalently attached to the prime coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.