Patent · US Active

UV-absorbers for ophthalmic lens materials

US7947849B2 · kind B2 · utility

7Cited by
19References
15Claims
0Family size

Assignee

Inventor

Key dates

Filing dateOct 29, 2010
Grant dateMay 24, 2011
Priority date—
Expiry dateOct 29, 2030

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.