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:
Nov. 16, 2010
Filed:
Feb. 04, 2004
Applicants:
Amir Parham, Frankfurt, DE;
Aurelie Falcou, Frankfurt, DE;
Susanne Heun, Bad Soden, DE;
Heinrich Becker, Eppstein-Niederjosbach, DE;
Esther Breuning, Niedernhausen, DE;
Inventors:
Amir Parham, Frankfurt, DE;
Aurelie Falcou, Frankfurt, DE;
Susanne Heun, Bad Soden, DE;
Heinrich Becker, Eppstein-Niederjosbach, DE;
Esther Breuning, Niedernhausen, DE;
Assignee:
Covion Organic Semiconductors GmbH, Wiesbaden, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 73/06 (2006.01); C08G 59/00 (2006.01); C08G 59/68 (2006.01); C08G 61/02 (2006.01); C08G 65/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to conjugated polymers comprising specific carbazole structural units. The materials according to the invention display steeper current-voltage curves and are therefore better suited to use in organic light-emitting diodes than are comparative polymers which do not contain these units.