Patent · US Active

Organic electroluminescence device

US8951647B2 · kind B2 · utility

10Cited by

0References

20Claims

0Family size

Assignee

Merck Patent GmbH · DE

Inventors

Amir Hossain Parham · Frankfurt am Main, DE
Joachim Kaiser · Frankfurt am Main, DE
Anja Gerhard · Egelsbach, DE
Jonas Valentin Kroeber · Frankfurt am Main, DE

Key dates

Filing date	Jul 8, 2009
Grant date	Feb 10, 2015
Priority date	—
Expiry date	Oct 23, 2030

Classification

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

Abstract

The present invention relates to organic electroluminescent devices which comprise fluorene derivatives and spirobifluorene derivatives as matrix material for phosphorescent emitters.

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