Contact lenses
US7521488B2 · kind B2 · utility
21Cited by
70References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2005 |
| Grant date | Apr 21, 2009 |
| Priority date | — |
| Expiry date | Aug 29, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/049
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention provides silicone hydrogel contact lenses that exhibit reduced back surface debris and reduced incidence of superior epithelial arcurate lesions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.