The Paris Convention for the Protection of Industrial Property (1883), which established two key principles of international intellectual property protection, being:
- national treatment: juristic and national persons who are either national or domiciled in a state party to the Convention shall, as regards the protection of industrial property, enjoy the advantages that their respective laws grant to nationals; and
- priority right: a trademark applicant from one contracting state shall be able to use its first filing date in that state as the effective filing date in another contracting state, provided that the applicant files the subsequent application within 6 months from the first.