Patent · US Active

Dichroic-photochromic 2H-naphtho[1,2-b]pyran compounds and devices

US8697890B2 · kind B2 · utility

7Cited by
12References
19Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 17, 2007
Grant dateApr 15, 2014
Priority date—
Expiry dateOct 27, 2029

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07D405/10
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

A naphthopyran compound represented by the formula

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