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About PCT

The Patent Cooperation Treaty (PCT) is a multilateral international treaty, administered by the World Intellectual Property Organization (WIPO).

PCT makes it possible to seek patent protection for an invention simultaneously in each of a large number of countries by filing a single international patent application.

When filing a PCT application the applicant must choose an International Searching Authority (ISA). The role of the ISA is to assist the applicant by identifying prior art which may have an influence on whether invention is patentable and to provide a non-binding opinion on the patentablity.

Detailed information about international patents and the PCT is available on the WIPO website.

Who can use NPI as ISA?

Nordic Patent Institute acts as International Search Authority (ISA) and International Preliminary Examination Authority (IPEA) for nationals and residents of Denmark, Iceland, Norway and Sweden.