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. 25, 2014
Filed:
Apr. 26, 2005
Applicants:
Amir Parham, Frankfurt, DE;
Susanne Heun, Bad Soden, DE;
Aurélie Ludemann, Frankfurt, DE;
Arne Buesing, Frankfurt, DE;
Junyou Pan, Frankfurt, DE;
Heinrich Becker, Hofheim, DE;
Inventors:
Amir Parham, Frankfurt, DE;
Susanne Heun, Bad Soden, DE;
Aurélie Ludemann, Frankfurt, DE;
Arne Buesing, Frankfurt, DE;
Junyou Pan, Frankfurt, DE;
Heinrich Becker, Hofheim, DE;
Assignee:
Merck Patent GmbH, Darmstadt, DE;
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/54 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to polymers which contain certain triarylamine units of the Formula (1) The materials according to the invention exhibit a longer lifetime than materials in accordance with the prior art and therefore more suitable for use in polymeric organic light-emitting diodes.