Patent · US Active

Photochromic lens

US7858001B2 · kind B2 · utility

45Cited by
49References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 29, 2006
Grant dateDec 28, 2010
Priority date—
Expiry dateNov 18, 2028

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/31576
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

A cast photochromic lens including a photochromic film and a cast resin, curable by heat or radiation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.