Strasbourg Agreement Concerning the International Patent Classification
Signed	24 March 1971 (1971-03-24)
Effective	7 October 1975^[1]
Condition	see Article 13 of the Agreement^[2]
Parties	65^[3]
Depositary	Director-General of WIPO^[4]
Language	English, French^[5]

The Strasbourg Agreement Concerning the International Patent Classification (or IPC), also known as the IPC Agreement, is an international treaty that established a common classification for patents for invention, inventors' certificates, utility models and utility certificates, known as the "International Patent Classification" (IPC).^[6] The treaty was signed in Strasbourg, France, on 24 March 1971; it entered into force on 7 October 1975^[1] and was amended on 28 September 1979. The Agreement and the certified statement were registered by the World Intellectual Property Organization on 28 February 1980.^[7]

States that are parties to the Paris Convention for the Protection of Industrial Property (1883) may become party to the Strasbourg Agreement.^[8] As of April 2023, there were 65 contracting parties to the Strasbourg Agreement.^[3] The Holy See, the Iran and Liechtenstein signed the Agreement in 1971^[9] but have not ratified it.^[3]

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WIPO Administered Treaties

WIPO Administered Treaties
IP protection treaties	Beijing Treaty on Audiovisual Performances Berne Convention for the Protection of Literary and Artistic Works Brussels Convention Relating to the Distribution of Programme-Carrying Signals Transmitted by Satellite Madrid Agreement for the Repression of False or Deceptive Indications of Source on Goods Marrakesh VIP Treaty Nairobi Treaty on the Protection of the Olympic Symbol Paris Convention for the Protection of Industrial Property Patent Law Treaty Convention for the Protection of Producers of Phonograms Against Unauthorized Duplication of Their Phonograms Rome Convention for the Protection of Performers, Producers of Phonograms and Broadcasting Organisations Singapore Treaty on the Law of Trademarks Trademark Law Treaty Washington Treaty on Intellectual Property in Respect of Integrated Circuits WIPO Copyright Treaty WIPO Performances and Phonograms Treaty
Global protection system treaties	Budapest Treaty on the International Recognition of the Deposit of Microorganisms for the Purposes of Patent Procedure Hague Agreement Concerning the International Deposit of Industrial Designs Lisbon Agreement for the Protection of Appellations of Origin and their International Registration Madrid Agreement Concerning the International Registration of Marks Protocol Relating to the Madrid Agreement Concerning the International Registration of Marks Patent Cooperation Treaty
Classification treaties	Locarno Agreement Establishing an International Classification for Industrial Designs Nice Agreement Concerning the International Classification of Goods and Services for the Purposes of the Registration of Marks Strasbourg Agreement Concerning the International Patent Classification Vienna Agreement Establishing an International Classification of the Figurative Elements of Marks

See also

References

External links