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. 31, 2016
Filed:
Mar. 19, 2008
Thomas Schäfer, Liestal, CH;
Peter Murer, Oberwil, CH;
Frédérique Wendeborn, Ranspach-le-Haut, FR;
Beat Schmidhalter, Bubendorf, CH;
Kristina Bardon, Waldshut, DE;
Andrea Ricci, Basel, CH;
Joern Pommerehne, Lörrach, DE;
Thomas Schäfer, Liestal, CH;
Peter Murer, Oberwil, CH;
Frédérique Wendeborn, Ranspach-le-Haut, FR;
Beat Schmidhalter, Bubendorf, CH;
Kristina Bardon, Waldshut, DE;
Andrea Ricci, Basel, CH;
Joern Pommerehne, Lörrach, DE;
BASF SE, Ludwigshafen, DE;
Abstract
The present invention relates to compounds of the formula (I), a process for their preparation and their use in organic light emitting diodes (OLEDs), especially as host for phosphorescent compounds. The hosts may function with phosphorescent materials to provide improved efficiency, stability, manufacturability, or special characteristics of electroluminescent devices.