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:
May. 24, 2011
Filed:
Apr. 26, 2005
Applicants:
Arne Büsing, Frankfurt, DE;
Susanne Heun, Bad Soden, DE;
Silke Türk, Montabaur, DE;
Corinna Leske, Frankfurt, DE;
Inventors:
Arne Büsing, Frankfurt, DE;
Susanne Heun, Bad Soden, DE;
Silke Türk, Montabaur, DE;
Corinna Leske, Frankfurt, DE;
Assignee:
Merck Patent GmbH, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to polymers which contain novel structural units of the formula (I). The materials according to the invention exhibit improved efficiency and a longer lifetime on use in a polymeric organic light-emitting diode.