Patent · US Active

Photochromic lens

US8367211B2 · kind B2 · utility

33Cited by
184References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 2, 2010
Grant dateFeb 5, 2013
Priority date—
Expiry dateDec 2, 2030

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.