Patent · US Active

Materials for organic electroluminescent devices

US9199972B2 · kind B2 · utility

8Cited by

5References

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
Rémi Manouk Anémian · Seoul, KR

Key dates

Filing date	Oct 28, 2010
Grant date	Dec 1, 2015
Priority date	—
Expiry date	Mar 6, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E10/549
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

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

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