Patent · US Expired

Rylene derivatives and their use as dyes

US6878825B2 · kind B2 · utility

15Cited by
2References
12Claims
0Family size

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Inventors

Key dates

Filing dateFeb 14, 2002
Grant dateApr 12, 2005
Priority date
Expiry dateFeb 14, 2022

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC09B5/62
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

Rylene derivatives of the general formula I where the variables have the following meanings:

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