Patent · US Expired

Organic electronic devices

US7776455B2 · kind B2 · utility

4Cited by

3References

23Claims

0Family size

Assignee

Merck Patent GmbH · DE

Inventors

Anja Gerhard · Egelsbach, DE
Horst Vestweber · Prüm, DE
Philipp Stössel · Frankfurt, DE

Key dates

Filing date	Feb 18, 2005
Grant date	Aug 17, 2010
Priority date	—
Expiry date	Jan 4, 2026

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S428/917
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The present invention relates to the improvement of organic electronic devices, in particular fluorescent electroluminescent devices, by using electron-transport materials of the formula (1) to (4) as shown in scheme 1

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