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:
Jan. 05, 2010
Filed:
Mar. 18, 2003
Shih-chun Lo, Oxford, GB;
Paul Leslie Burn, Oxford, GB;
Ifor David William Samuel, Fife, GB;
Thomas Dimitrios Anthopoulos, Fife, GB;
Shih-Chun Lo, Oxford, GB;
Paul Leslie Burn, Oxford, GB;
Ifor David William Samuel, Fife, GB;
Thomas Dimitrios Anthopoulos, Fife, GB;
Isis Innovation Limited, Oxford, GB;
The University Court Of The University Of St. Andrews, Fife, GB;
Abstract
A light emitting device having at least one layer that contains a phosphorescent organometallic dendrimer with a metal cation and two or more coordinating groups as part of its core and wherein at least two of said coordinating groups each have a dendron attached, at least one of which dendrons comprises at least one nitrogen atom which forms a part of an aromatic ring system or is directly bonded to at least two aromatic groups.