US Patent 9199972 Materials for organic electroluminescent devices
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Patent abstract
The present invention relates to organic electroluminescent devices which comprise fluorene derivatives and spiro bifluorene derivatives as matrix material for phosphorescent emitters.
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US Patent 09199972 Materials for organic electroluminescent devices US Patent 9199972 Materials for organic electroluminescent devices
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Patent Number
0919997200
Patent Number
919997200
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Is a
Patent Jurisdiction
Patent Number
091999720
Date of Patent
December 1, 2015
0Patent Application Number
135101430
Date Filed
October 28, 2010
0Official Website
Patent Primary Examiner
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Infobox
Is a
Patent Jurisdiction
Patent Number
091999720
Date of Patent
December 1, 2015
0Patent Application Number
135101430
Date Filed
October 28, 2010
0Official Website
Patent Primary Examiner
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US Patent 09199972 Materials for organic electroluminescent devices
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Is a
Patent jurisdiction
Patent number
09199972
Date of patent
December 1, 2015
Patent application number
13510143
Date Filed
October 28, 2010
Patent primary examiner
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