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:
Jun. 04, 2013
Filed:
Apr. 04, 2008
Herbert Friedrich Boerner, Aachen, DE;
Hans-peter Loebl, Monschgau-Imgenbroich, DE;
Josef Salbeck, Kaufungen, DE;
Elena Popova, Kassel, DE;
Herbert Friedrich Boerner, Aachen, DE;
Hans-Peter Loebl, Monschgau-Imgenbroich, DE;
Josef Salbeck, Kaufungen, DE;
Elena Popova, Kassel, DE;
BASF SE, Ludwigshafen, DE;
Abstract
Organometallic complexes which bear at least one ligand which has a unit having a triplet energy of at least 22 000 cm, a process for preparing the organometallic complexes, a mixture comprising at least one of these organometallic complexes, the use of the organometallic complexes or of the mixture in organic light-emitting diodes, the organometallic complexes preferably being used as emitter materials, and specific nitrogen- or phosphorus-substituted triphenylene derivatives and a process for their preparation, the organometallic complex including a monoanionic bidentate ligand of formula (IIa)