The Director General of the World Intellectual Property Organization (WIPO) presents his compliments to the Minister for Foreign Affairs and has the honor to notify the deposit by the Government of the Islamic Republic of Iran, on November 10, 2025, of its instrument of ratification of the Strasbourg Agreement Concerning the International Patent Classification of March 24, 1971, as amended on September 28, 1979 (Strasbourg Agreement).
The Strasbourg Agreement will enter into force, with respect to the Islamic Republic of Iran, on November 10, 2026.
November 10, 2025