Ralf Sieckmann v Deutsches Patent und Markenamt
{'<entity_0>': 'Ralf Sieckmann v Deutsches Patent und Markenamt', '<entity_1>': 'European Court of Justice'}
[['Ralf Sieckmann v Deutsches Patent und Markenamt', 'court', 'European Court of Justice']]
In trademark law, <entity_0> (case C-273/00) issued on December 12, 2002, is widely recognised as a landmark decision of the <entity_1> on the graphical representation of non-conventional trademarks under the European Trade Marks Directive.
['legal case']