UV-absorbers for ophthalmic lens materials
US7884228B1 · kind B1 · utility
7Cited by
19References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 5, 2009 |
| Grant date | Feb 8, 2011 |
| Priority date | — |
| Expiry date | May 5, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D317/52
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
UV absorbing monomers that are particularly useful in ophthalmic devices are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.