La Convention sur le brevet européen, ou European Patent Convention,  institue un droit commun aux Etats contractants (dont la France et le Royaume-Uni) en matière de délivrance de brevets d’invention.

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Exemple : « The European patent shall, in each of the Contracting States for which it is granted, have the effect of and be subject to the same conditions as a national patent granted by that State, unless this Convention provides otherwise. » (Art.2(2), EPC)