
US Patent Application No: 2012/0091,884
Number of patents in Portfolio can not be more than 2000
HEPTAAZAPHENALENE DERIVATIVES AND USE THEREOF IN ORGANIC ELECTROLUMINESCENT DEVICE
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Apr 19, 2012
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May 21, 2010
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13/257,431
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Abstract
The present invention relates to an organic electroluminescent device comprising a pair of electrodes forming an anode and cathode, and one or more layers of organic compound arranged between the pair of electrodes, wherein the organic compound layer comprises heptaazaphenalene derivatives of formula (1). The present invention also relates to the said compounds.
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