This is a list of parties to international patent treaties which are open to all states.
- Paris
- Paris Convention for the Protection of Industrial Property, Paris, 1883-03-20, came into force 1884-07-07
- PCT
- Patent Cooperation Treaty, Washington, 1970-06-19, came into force 1978-01-24
- Budapest
- Budapest Treaty on the International Recognition of the Deposit of Microorganisms for the Purposes of Patent Procedure, Budapest, 1977-04-28, came into force 1980-08-19
- TRIPS
- Agreement on Trade-Related Aspects of Intellectual Property Rights, Marrakech, 1994-04-15, came into force 1995-01-01
- PLT
- Patent Law Treaty, Geneva, 2000-06-01, came into force 2005-04-28
The list below was taken from details supplied by WIPO and the WTO. Dates quoted are the date on which the treaty came into effect for a given country.
| Country | Paris | PCT | Budapest | TRIPS | PLT | |
|---|---|---|---|---|---|---|
| Afghanistan | 2017-05-14 | — | — | — | — | |
| Albania | 1995-10-04 | 1995-10-04 | 2003-09-19 | 2000-09-08 | 2010-05-17 | |
| Algeria | 1966-03-01 | 2000-03-08 | — | — | — | |
| Andorra | 2004-06-02 | — | — | — | — | |
| Angola | 2007-12-27 | 2007-12-27 | — | 1996-11-23 | — | |
| Antigua and Barbuda | 2000-03-17 | 2000-03-17 | 2019-06-25 | 1995-01-01 | — | |
| Argentina | 1967-02-10 | — | — | 1995-01-01 | — | |
| Armenia | 1991-12-25 | 1991-12-25 | 2005-03-06 | 2003-02-05 | 2013-09-17 | |
| Australia | 1925-10-10 | 1980-03-31 | 1987-07-07 | 1995-01-01 | 2009-03-16 | |
| Austria | 1909-01-01 | 1979-04-23 | 1984-04-26 | 1995-01-01 | — | |
| Azerbaijan | 1995-12-25 | 1995-12-25 | 2003-10-14 | — | — | |
| Bahamas | 1973-07-10 | — | — | — | — | |
| Bahrain | 1997-10-29 | 2007-03-18 | 2012-11-20 | 1995-01-01 | 2005-12-15 | |
| Bangladesh | 1991-03-03 | — | — | 1995-01-01 | — | |
| Barbados | 1985-03-12 | 1985-03-12 | — | 1995-01-01 | — | |
| Belarus | 1991-12-25 | 1991-12-25 | 2001-10-19 | — | 2016-10-21 | |
| Belgium | 1884-07-07 | 1981-12-14 | 1983-12-15 | 1995-01-01 | — | |
| Belize | 2000-06-17 | 2000-06-17 | — | 1995-01-01 | — | |
| Benin | 1967-01-10 | 1987-02-26 | — | 1996-02-22 | — | |
| Bhutan | 2000-08-04 | — | — | — | — | |
| Bolivia | 1993-11-04 | — | — | 1995-09-12 | — | |
| Bosnia and Herzegovina | 1992-03-01 | 1996-09-07 | 2009-01-27 | — | 2012-05-09 | |
| Botswana | 1998-04-15 | 2003-10-30 | — | 1995-05-31 | — | |
| Brazil | 1884-07-07 | 1978-04-09 | — | 1995-01-01 | — | |
| Brunei | 2012-02-17 | 2012-07-24 | 2012-07-24 | 1995-01-01 | — | |
| Bulgaria | 1921-06-13 | 1984-05-21 | 1980-08-19 | 1996-12-01 | — | |
| Burkina Faso | 1963-11-19 | 1989-03-21 | — | 1995-06-03 | — | |
| Burundi | 1977-09-03 | — | — | 1995-07-23 | — | |
| Cambodia | 1998-09-22 | 2016-12-08 | — | 2004-10-13 | — | |
| Cameroon | 1964-05-10 | 1978-01-24 | — | 1995-12-13 | — | |
| Canada | 1923-09-01 | 1990-01-02 | 1996-09-21 | 1995-01-01 | — | |
| Cape Verde | 2022-07-06 | 2022-07-06 | — | 2008-07-23 | — | |
| Central African Republic | 1963-11-19 | 1978-01-24 | — | 1995-05-31 | — | |
| Chad | 1963-11-19 | 1978-01-24 | — | 1996-10-19 | — | |
| Chile | 1991-06-14 | 2009-06-02 | 2011-08-05 | 1995-01-01 | — | |
| China | 1985-03-19 | 1994-01-01 | 1995-07-01 | 2001-12-11 | — | |
| Colombia | 1996-09-03 | 2001-02-28 | 2016-07-26 | 1995-04-30 | — | |
| Comoros | 2005-04-03 | 2005-04-03 | — | — | — | |
| Congo, Democratic Republic | 1975-01-31 | — | — | 1997-01-01 | — | |
| Congo, Republic | 1963-09-02 | 1978-01-24 | — | 1997-03-27 | — | |
| Costa Rica | 1995-10-31 | 1999-08-03 | 2008-09-30 | 1995-01-01 | — | |
| Côte d'Ivoire | 1963-10-23 | 1991-04-30 | — | 1995-01-01 | — | |
| Croatia | 1991-10-08 | 1998-07-01 | 2000-02-25 | 2000-11-30 | 2005-04-28 | |
| Cuba | 1904-11-17 | 1996-07-16 | 1994-02-19 | 1995-04-20 | — | |
| Cyprus | 1966-01-17 | 1998-04-01 | — | 1995-07-30 | — | |
| Czech Republic | 1993-01-01 | 1993-01-01 | 1993-01-01 | 1995-01-01 | — | |
| Denmark | 1894-10-01 | 1978-12-01 | 1985-07-01 | 1995-01-01 | 2005-04-28 | |
| Djibouti | 2002-05-13 | 2016-09-23 | — | 1995-05-31 | — | |
| Dominica | 1999-08-07 | 1999-08-07 | — | 1995-01-01 | — | |
| Dominican Republic | 1890-07-11 | 2007-05-28 | 2007-07-03 | 1995-03-09 | — | |
| Ecuador | 1999-06-22 | 2001-05-07 | — | 1996-01-21 | — | |
| Egypt | 1951-07-01 | 2003-09-06 | — | 1995-06-30 | — | |
| El Salvador | 1994-02-19 | 2006-08-17 | 2006-08-17 | 1995-05-07 | — | |
| Equatorial Guinea | 1997-06-26 | 2001-07-17 | — | — | — | |
| Eritrea | — | — | — | — | — | |
| Ethiopia | 2025-08-15 | — | — | — | — | |
| Estonia | 1994-08-24 | 1994-08-24 | 1996-09-14 | 1999-11-13 | 2005-04-28 | |
| Eswatini | 1991-05-12 | 1994-09-20 | — | 1995-01-01 | — | |
| European Union | — | — | — | 1995-01-01 | — | |
| Fiji | 2024-01-19 | — | — | 1996-01-14 | — | |
| Finland | 1921-09-20 | 1980-10-01 | 1985-09-01 | 1995-01-01 | 2006-03-06 | |
| France | 1884-07-07 | 1978-02-25 | 1980-08-19 | 1995-01-01 | 2010-01-05 | |
| Gabon | 1964-02-29 | 1978-01-24 | — | 1995-01-01 | — | |
| Gambia | 1992-01-21 | 1997-12-09 | — | 1996-10-23 | — | |
| Georgia | 1991-12-25 | 1991-12-25 | 2005-09-30 | 2000-06-14 | — | |
| Germany | 1903-05-01 | 1978-01-24 | 1981-01-20 | 1995-01-01 | — | |
| Ghana | 1976-09-28 | 1997-02-26 | — | 1995-01-01 | — | |
| Greece | 1924-10-02 | 1990-10-09 | 1993-10-30 | 1995-01-01 | — | |
| Grenada | 1998-09-22 | 1998-09-22 | — | 1996-02-22 | — | |
| Guatemala | 1998-08-18 | 2006-10-14 | 2006-10-14 | 1995-07-21 | — | |
| Guinea | 1982-02-05 | 1991-05-27 | — | 1995-10-25 | — | |
| Guinea-Bissau | 1988-06-28 | 1997-12-12 | — | 1995-05-31 | — | |
| Guyana | 1994-10-25 | — | — | 1995-01-01 | — | |
| Haiti | 1958-07-01 | — | — | 1996-01-30 | — | |
| Honduras | 1994-02-04 | 2006-06-20 | 2006-06-20 | 1995-01-01 | — | |
| Hong Kong, China | 1997-07-01 | 1997-07-01 | — | 1995-01-01 | — | |
| Hungary | 1909-01-01 | 1980-06-27 | 1980-08-19 | 1995-01-01 | 2008-03-12 | |
| Iceland | 1962-05-05 | 1995-03-23 | 1995-03-23 | 1995-01-01 | — | |
| India | 1998-12-07 | 1998-12-07 | 2001-12-17 | 1995-01-01 | — | |
| Indonesia | 1950-12-24 | 1997-09-05 | — | 1995-01-01 | — | |
| Iran | 1959-12-16 | 2013-10-04 | — | — | — | |
| Iraq | 1976-12-24 | 2022-04-30 | — | — | — | |
| Ireland | 1925-12-04 | 1992-08-01 | 1999-12-15 | 1995-01-01 | 2012-05-27 | |
| Israel | 1950-03-24 | 1996-06-01 | 1996-04-26 | 1995-04-21 | — | |
| Italy | 1884-07-07 | 1985-03-28 | 1986-03-23 | 1995-01-01 | — | |
| Jamaica | 1999-12-24 | 2022-02-10 | — | 1995-05-09 | — | |
| Japan | 1899-07-15 | 1978-10-01 | 1980-08-19 | 1995-01-01 | — | |
| Jordan | 1972-07-17 | 2017-06-09 | 2008-11-14 | 2000-04-11 | — | |
| Kazakhstan | 1991-12-25 | 1991-12-25 | 2002-04-24 | — | 2011-10-19 | |
| Kenya | 1965-06-14 | 1994-06-08 | — | 1995-01-01 | — | |
| Kiribati | 2022-02-05 | — | — | — | — | |
| Korea, Democratic People's Republic | 1980-06-10 | 1980-07-08 | 2002-02-21 | — | — | |
| Korea, Republic | 1980-05-04 | 1984-08-10 | 1988-03-28 | 1995-01-01 | — | |
| Kuwait | 2014-12-02 | 2016-09-09 | — | 1995-01-01 | — | |
| Kyrgyzstan | 1991-12-25 | 1991-12-25 | 2003-05-17 | 1998-12-20 | 2005-04-28 | |
| Laos | 1998-10-08 | 2006-06-14 | — | 2013-02-02 | — | |
| Latvia | 1993-09-07 | 1993-09-07 | 1994-12-29 | 1999-02-10 | 2010-06-12 | |
| Lebanon | 1924-09-01 | — | — | — | — | |
| Lesotho | 1989-09-28 | 1995-10-21 | — | 1995-05-31 | — | |
| Liberia | 1994-08-27 | 1994-08-27 | — | — | 2017-01-04 | |
| Libya | 1976-09-28 | 2005-09-15 | — | — | — | |
| Liechtenstein | 1933-07-14 | 1980-03-19 | 1981-08-19 | 1995-09-01 | 2009-12-18 | |
| Lithuania | 1994-05-22 | 1994-07-05 | 1998-05-09 | 2001-05-31 | 2012-02-03 | |
| Luxembourg | 1922-06-30 | 1978-04-30 | 2010-07-29 | 1995-01-01 | — | |
| Macau, China | 1999-12-20 | — | — | 1995-01-01 | — | |
| Madagascar | 1963-12-21 | 1978-01-24 | — | 1995-11-17 | — | |
| Malawi | 1964-07-06 | 1978-01-24 | — | 1995-05-31 | — | |
| Malaysia | 1989-01-01 | 2006-08-16 | 2022-06-30 | 1995-01-01 | — | |
| Maldives | — | — | — | 1995-05-31 | — | |
| Mali | 1983-03-01 | 1984-10-19 | — | 1995-05-31 | — | |
| Malta | 1967-10-20 | 2007-03-01 | — | 1995-01-01 | — | |
| Mauritania | 1965-04-11 | 1983-04-13 | — | 1995-05-31 | — | |
| Mauritius | 1976-09-24 | 2023-03-15 | — | 1995-01-01 | — | |
| Mexico | 1903-09-07 | 1995-01-01 | 2001-03-21 | 1995-01-01 | — | |
| Federated States of Micronesia | — | — | — | — | — | |
| Moldova | 1991-12-25 | 1991-12-25 | 1991-12-25 | 2001-07-26 | 2005-04-28 | |
| Monaco | 1956-04-29 | 1979-06-22 | 1999-01-23 | — | — | |
| Mongolia | 1985-04-21 | 1991-05-27 | — | 1997-01-29 | — | |
| Montenegro | 2006-06-03 | 2006-06-03 | 2006-06-03 | 2012-04-29 | 2012-03-09 | |
| Morocco | 1917-07-30 | 1999-10-08 | 2011-07-20 | 1995-01-01 | — | |
| Mozambique | 1998-07-09 | 2000-05-18 | — | 1995-08-26 | — | |
| Myanmar | — | — | — | 1995-01-01 | — | |
| Namibia | 2004-01-01 | 2004-01-01 | — | 1995-01-01 | — | |
| Nauru | — | — | — | — | — | |
| Nepal | 2001-06-22 | — | — | 2004-04-23 | — | |
| Netherlands | 1884-07-07 | 1979-07-10 | 1987-07-02 | 1995-01-01 | 2010-10-27 | |
| New Zealand | 1931-07-29 | 1992-12-01 | 2019-03-17 | 1995-01-01 | — | |
| Nicaragua | 1996-07-03 | 2003-03-06 | 2006-08-10 | 1995-09-03 | — | |
| Niger | 1964-07-05 | 1993-03-21 | — | 1996-12-13 | — | |
| Nigeria | 1963-09-02 | 2005-05-08 | — | 1995-01-01 | 2005-04-28 | |
| North Macedonia | 1991-09-08 | 1995-08-10 | 2002-08-30 | 2003-04-04 | 2010-04-22 | |
| Norway | 1885-07-01 | 1980-01-01 | 1986-01-01 | 1995-01-01 | — | |
| Oman | 1999-07-14 | 2001-10-26 | 2007-10-16 | 2000-11-09 | 2007-10-16 | |
| Pakistan | 2004-07-22 | — | — | 1995-01-01 | — | |
| Palau | — | — | — | — | — | |
| Panama | 1996-10-19 | 2012-09-07 | 2012-09-07 | 1997-09-06 | — | |
| Papua New Guinea | 1999-06-15 | 2003-06-14 | — | 1996-06-09 | — | |
| Paraguay | 1994-05-28 | — | — | 1995-01-01 | — | |
| Peru | 1995-04-11 | 2009-06-06 | 2009-01-20 | 1995-01-01 | — | |
| Philippines | 1965-09-27 | 2001-08-17 | 1981-10-21 | 1995-01-01 | — | |
| Poland | 1919-11-10 | 1990-12-25 | 1993-09-22 | 1995-07-01 | — | |
| Portugal | 1884-07-07 | 1992-11-24 | 1997-10-16 | 1995-01-01 | — | |
| Qatar | 2000-07-05 | 2011-08-03 | 2014-03-06 | 1996-01-13 | — | |
| Romania | 1920-10-06 | 1979-07-23 | 1999-09-25 | 1995-01-01 | 2005-04-28 | |
| Russian Federation | 1965-07-01 | 1978-03-29 | 1981-04-22 | 2012-08-22 | 2009-08-12 | |
| Rwanda | 1984-03-01 | 2011-08-31 | — | 1996-05-22 | — | |
| Saint Kitts and Nevis | 1995-04-09 | 2005-10-27 | — | 1996-02-21 | — | |
| Saint Lucia | 1995-06-09 | 1996-10-30 | — | 1995-01-01 | — | |
| St. Vincent & Grenadines | 1995-08-29 | 2002-08-06 | — | 1995-01-01 | — | |
| Samoa | 2013-09-21 | 2020-01-02 | — | 2012-05-10 | — | |
| San Marino | 1960-03-04 | 2004-12-14 | — | — | — | |
| São Tomé and Príncipe | 1998-05-12 | 2008-07-03 | — | — | — | |
| Saudi Arabia | 2004-03-11 | 2013-08-03 | 2021-01-16 | 2005-12-11 | 2013-08-03 | |
| Senegal | 1963-12-21 | 1978-01-24 | — | 1995-01-01 | — | |
| Serbia | 1992-04-27 | 1997-01-02 | 1994-02-25 | — | 2010-10-20 | |
| Seychelles | 2002-11-07 | 2002-11-07 | — | — | — | |
| Sierra Leone | 1997-06-17 | 1997-06-17 | — | 1995-07-23 | — | |
| Singapore | 1995-02-23 | 1995-02-23 | 1995-02-23 | 1995-01-01 | — | |
| Slovakia | 1993-01-01 | 1993-01-01 | 1993-01-01 | 1995-01-01 | 2005-04-28 | |
| Slovenia | 1991-06-25 | 1994-03-01 | 1998-03-12 | 1995-07-30 | 2005-04-28 | |
| Solomon Islands | — | — | — | 1996-07-26 | — | |
| Somalia | — | — | — | — | — | |
| South Africa | 1947-12-01 | 1999-03-16 | 1997-07-14 | 1995-01-01 | — | |
| South Sudan | — | — | — | — | — | |
| Spain | 1884-07-07 | 1989-11-16 | 1981-03-19 | 1995-01-01 | 2013-11-06 | |
| Sri Lanka | 1952-12-29 | 1982-02-26 | — | 1995-01-01 | — | |
| Sudan | 1984-04-16 | 1984-04-16 | — | — | — | |
| Suriname | 1975-11-25 | — | — | 1995-01-01 | — | |
| Sweden | 1885-07-01 | 1978-05-17 | 1983-10-01 | 1995-01-01 | 2007-12-27 | |
| Switzerland | 1884-07-07 | 1978-01-24 | 1981-08-09 | 1995-07-01 | 2008-07-01 | |
| Syria | 1924-09-01 | 2003-06-26 | — | — | — | |
| Taiwan (Republic of China) | — | — | — | 2002-01-01 | — | |
| Tajikistan | 1991-12-25 | 1991-12-25 | 1991-12-25 | 2013-03-02 | — | |
| Tanzania | 1963-06-16 | 1999-09-14 | — | 1995-01-01 | — | |
| Thailand | 2008-05-02 | 2009-09-24 | — | 1995-01-01 | — | |
| Timor Leste | — | — | — | — | — | |
| Togo | 1967-09-10 | 1978-01-24 | — | 1995-05-31 | — | |
| Tonga | 2001-06-14 | — | — | 2007-07-27 | — | |
| Trinidad and Tobago | 1964-08-01 | 1994-03-10 | 1994-03-10 | 1995-03-01 | — | |
| Tunisia | 1884-07-07 | 2001-12-10 | 2004-05-23 | 1995-03-29 | — | |
| Turkey | 1925-10-10 | 1996-01-01 | 1998-11-30 | 1995-03-26 | — | |
| Turkmenistan | 1991-12-25 | 1991-12-25 | — | — | — | |
| Tuvalu | — | — | — | — | — | |
| Uganda | 1965-06-14 | 1995-02-09 | — | 1995-01-01 | — | |
| Ukraine | 1991-12-25 | 1991-12-25 | 1997-07-02 | 2008-05-16 | 2005-04-28 | |
| United Arab Emirates | 1996-09-19 | 1999-03-10 | 2021-05-17 | 1996-04-10 | — | |
| United Kingdom | 1884-07-07 | 1978-01-24 | 1980-12-29 | 1995-01-01 | 2006-03-22 | |
| United States of America | 1887-05-30 | 1978-01-24 | 1980-08-19 | 1995-01-01 | 2013-12-18 | |
| Uruguay | 1967-03-18 | 2025-01-07 | — | 1995-01-01 | — | |
| Uzbekistan | 1991-12-25 | 1991-12-25 | 2002-01-12 | — | 2006-07-19 | |
| Vanuatu | — | — | — | 2012-08-24 | — | |
| Holy See (Vatican City) | 1960-09-29 | — | — | — | — | |
| Venezuela | 1995-09-12 | — | — | 1995-01-01 | — | |
| Vietnam | 1949-03-08 | 1993-03-10 | 2021-06-01 | 2007-01-11 | — | |
| Yemen | 2007-02-15 | — | — | — | — | |
| Zambia | 1965-04-06 | 2001-11-15 | — | 1995-01-01 | — | |
| Zimbabwe | 1980-04-18 | 1997-06-11 | — | 1995-03-05 | — | |
- Notes
- Ratification as the Soviet Union; states except Russian Federation declared continue application during the dissolution of the USSR
- Ratification as Austria-Hungary
- Estonia was a member of the Paris Convention from 1924-02-12. However, it lost its independence on 1940-08-06.
- Ratification of China extended to Hong Kong
- Latvia was a member of the Paris Convention from 1925-08-20. However, it lost its independence on 1940-07-21.
- Ratification of China extended to Macao
- Valid in all countries in the Kingdom: Aruba, Curaçao, Netherlands and Sint Maarten
- Valid in all countries in the Kingdom, except Aruba
- Extended to the Cook Islands, Niue and Tokelau
- Ratification as Serbia and Montenegro
- Extended to the Isle of Man (1983), Guernsey (from November 2020), Bailiwick of Jersey (from November 2020) and Gibraltar (from January 2021).
- Extended to the Isle of Man (from 29 October 1983), Hong Kong (1981-1997), Gibraltar (from 1 January 2021) and Guernsey (from 23 March 2021)
- Extended to Guernsey, the Isle of Man and Gibraltar from 1 January 2021.
- Extended to the Isle of Man
See also
- African Regional Intellectual Property Organization (ARIPO)
- Eurasian Patent Organization (EAPO)
- European Patent Organisation (EPO)
- World Intellectual Property Organization (WIPO)
- World Trade Organization (WTO)
- List of parties to international copyright treaties
- List of parties to international related rights treaties
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