Patent · US Expired

Rylene derivatives and their use as dyes

US7138522B2 · kind B2 · utility

5Cited by

3References

2Claims

0Family size

Assignees

Inventors

Matthias Krieger · Soest, DE
Arno Boehm · Mannheim, DE
Erik Reuther · Mainz, DE
Klaus Muellen · Cologne, DE

Key dates

Filing date	Nov 12, 2004
Grant date	Nov 21, 2006
Priority date	—
Expiry date	Jan 27, 2025

Classification

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

Abstract

Rylene derivatives of the general formula Iwhere the variables have the following meanings:

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