Patent Cooperation Treaty (PCT)

Article 9
The Applicant

(1)  Any resident or national of a Contracting State may file an international application.

(2)  The Assembly may decide to allow the residents and the nationals of any country party to the Paris Convention for the Protection of Industrial Property which is not party to this Treaty to file international applications.

(3)  The concepts of residence and nationality, and the application of those concepts in cases where there are several applicants or where the applicants are not the same for all the designated States, are defined in the Regulations.