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:
Mar. 06, 2012
Filed:
Sep. 20, 2005
Applicants:
Philipp Stössel, Frankfurt am Main, DE;
Arne Büsing, Frankfurt am Main, DE;
Horst Vestweber, Gilserberg, DE;
Holger Heil, Darmstadt, DE;
Inventors:
Philipp Stössel, Frankfurt am Main, DE;
Arne Büsing, Frankfurt am Main, DE;
Horst Vestweber, Gilserberg, DE;
Holger Heil, Darmstadt, DE;
Assignee:
Merck Patent GmbH, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 51/00 (2006.01); C07C 15/20 (2006.01); C07C 49/115 (2006.01); C07D 209/86 (2006.01); C09D 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to the improvement of organic electroluminescent devices, in particular blue-emitting devices, by using compounds of the formula (1) as host materials in the emitting layer.