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:
Dec. 29, 2015
Filed:
Aug. 06, 2009
Applicants:
Poopathy Kathirgamanathan, North Harrow, GB;
Sivagnanasundram Surendrakumar, Middlesex, GB;
Yun Fu Chan, Cleveland, GB;
Inventors:
Poopathy Kathirgamanathan, North Harrow, GB;
Sivagnanasundram Surendrakumar, Middlesex, GB;
Yun Fu Chan, Cleveland, GB;
Assignee:
Merck Patent GmbH, Darmstadt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/54 (2006.01); C07D 263/57 (2006.01); C07F 5/00 (2006.01); C07F 1/00 (2006.01); H01L 51/00 (2006.01); H01L 51/50 (2006.01); C07D 277/64 (2006.01); C07F 5/02 (2006.01); C07F 7/02 (2006.01); C07F 9/00 (2006.01);
U.S. Cl.
CPC ...
C07D 263/57 (2013.01); C07D 277/64 (2013.01); C07F 1/005 (2013.01); C07F 5/003 (2013.01); C07F 5/02 (2013.01); C07F 7/025 (2013.01); C07F 9/005 (2013.01); H01L 51/008 (2013.01); H01L 51/0089 (2013.01); H01L 51/0091 (2013.01); H01L 51/5072 (2013.01);
Abstract
The invention provides new compounds of the formula I, II or III. These compounds can be used as electron transport materials in optical light emitting diodes (OLEDs). The compounds of the formula I, II and III are as follows: