The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 18, 2017
Filed:
Dec. 15, 2011
Philipp Stoessel, Frankfurt am Main, DE;
Arne Buesing, Frankfurt am Main, DE;
Esther Breuning, Ober-Ramstadt, DE;
Christof Pflumm, Darmstadt, DE;
Amir Hossain, Frankfurt am Main, DE;
Thomas Eberle, Landau, DE;
Teresa Mujica-fernaud, Darmstadt, DE;
Philipp Stoessel, Frankfurt am Main, DE;
Arne Buesing, Frankfurt am Main, DE;
Esther Breuning, Ober-Ramstadt, DE;
Christof Pflumm, Darmstadt, DE;
Amir Hossain, Frankfurt am Main, DE;
Thomas Eberle, Landau, DE;
Teresa Mujica-Fernaud, Darmstadt, DE;
Merck Patent GmbH, , DE;
Abstract
The present invention relates to aromatic nitrogen heterocycles, and to electronic devices, in particular organic electroluminescent devices, which comprise these aromatic nitrogen heterocycles, in particular in a hole-injection layer and/or in a hole-transport layer and/or in a hole-blocking layer and/or in an electron-transport layer and/or in an emitting layer.