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1. WO2000014174 - ORGANIC ELECTROLUMINESCENCE DEVICE AND PHENYLENEDIAMINE DERIVATIVE

Available information on National Phase entries(more information)
OfficeEntry DateNational NumberNational Status
China 03.09.199999801522.9
European Patent Office 30.03.20001999940653Published: 23.08.2000
Withdrawn: 30.10.2009
Republic of Korea 14.04.20001020007004003Published: 16.04.2001
United States of America 09.05.200009530597
Republic of Korea 27.06.20061020067012880Granted: 27.11.2007
Expired: 14.02.2015
Republic of Korea 04.06.20071020077012605Published: 10.07.2007