Patent · US Expired

Contact lenses

US6849671B2 · kind B2 · utility

102Cited by
64References
36Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 9, 2001
Grant dateFeb 1, 2005
Priority date—
Expiry dateOct 9, 2021

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.