Patent · US Expired

Electroluminescent arrangements

US7923475B2 · kind B2 · utility

11Cited by

16References

4Claims

0Family size

Assignee

H.C. STARCK INC. · US

Inventors

Friedrich Jonas · Aachen, DE
Andreas Elschner · Mülheim, DE
Klaus Wussow · Netphen, DE
Rolf Wehrmann · Krefeld, DE

Key dates

Filing date	Jan 24, 2002
Grant date	Apr 12, 2011
Priority date	—
Expiry date	Jan 24, 2022

Classification

Technology area (CPC H)Electricity
CPC primaryH10K85/631

Abstract

3,4-Polyalkylenedioxythiophene dispersions comprising polyanions and cationic 3,4-polyalkylenedioxythiophenes, in particular those of the formula (I)in which

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