List of parties to international patent treaties

| Afghanistan

| 2017-05-14{{cite web|url=http://www.wipo.int/treaties/en/notifications/paris/treaty_paris_221.html|title=Paris Notification No. 221 - Paris Convention for the Protection of Industrial Property - Accession by the Islamic Republic of Afghanistan|date=February 14, 2017|publisher=WIPO|accessdate=3 March 2017|archive-date=4 March 2017|archive-url=https://web.archive.org/web/20170304114331/http://www.wipo.int/treaties/en/notifications/paris/treaty_paris_221.html|url-status=live}}

| —

| —

| —

| —

| 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{{efn|name=SU|Ratification as the Soviet Union; states except Russian Federation declared continue application during the dissolution of the USSR}}

| 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{{efn|name=Sissy|Ratification as Austria-Hungary}}

| 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{{efn|name=SU}}

| 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

| —

| —

| —

|—

| —

| Estonia

| 1994-08-24{{efn|name=EST|Estonia was a member of the Paris Convention from 1924-02-12. However, it lost its independence on 1940-08-06.}}

| 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{{efn|name=SU}}

| 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{{efn|name=HK|Ratification of China extended to Hong Kong}}

| 1997-07-01{{efn|name=HK}}

| —

| 1995-01-01

| —

| Hungary

| 1909-01-01{{efn|name=Sissy}}

| 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{{cite web |title=New PCT Contracting State |url=https://www.wipo.int/pct/en/newslett/2021/article_0001.html |website=www.wipo.int |publisher=WIPO |access-date=18 December 2021 |language=en |date=November 24, 2021 |quote=On 10 November 2021, Jamaica deposited its instrument of accession to the PCT, thus becoming the 154th Contracting State of the PCT, and on 10 February 2022, will become bound by the PCT.}}

| —

| 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{{efn|name=SU}}

| 1991-12-25

| 2002-04-24

|—

| 2011-10-19

| Kenya

| 1965-06-14

| 1994-06-08

| —

| 1995-01-01

| —

| Kiribati

| 2022-02-05{{cite web |title=Paris Convention Accession, Accession by Kiribati |url=https://www.wipo.int/pct/en/newslett/2021/article_0002.html |website=www.wipo.int |publisher=WIPO |access-date=18 December 2021 |language=en |date=November 2021 |quote=On 5 November 2021, Kiribati (country code: KI) deposited its instrument of accession to the Paris Convention for the Protection of Industrial Property, thus bringing the total number of States party to that Convention to 178. Kiribati will become bound by the Paris Convention on 5 February 2022.}}

| —

| —

| —

| —

| 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{{efn|name=SU}}

| 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{{efn|name=LV|Latvia was a member of the Paris Convention from 1925-08-20. However, it lost its independence on 1940-07-21.}}

| 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{{efn|name=MC|Ratification of China extended to Macao}}

| —

| —

| 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{{cite web |title=TREATY/PCT/223: [PCT] Accession by the Republic of Mauritius |url=https://www.wipo.int/treaties/en/notifications/pct/treaty_pct_223.html |website=www.wipo.int |publisher=WIPO |access-date=26 December 2022 |language=en |date=15 December 2022}}

| —

| 1995-01-01

| —

| Mexico

| 1903-09-07

| 1995-01-01

| 2001-03-21

| 1995-01-01

| —

| Federated States of Micronesia

| —

| —

| —

| —

| —

| Moldova

| 1991-12-25{{efn|name=SU}}

| 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{{efn|name=NL4}}

| 1979-07-10{{efn|name=NL4}}

| 1987-07-02{{efn|name=NL4}}

| 1995-01-01{{efn|name=NL4|Valid in all countries in the Kingdom: Aruba, Curaçao, Netherlands and Sint Maarten}}

| 2010-10-27{{efn|name=NL3|Valid in all countries in the Kingdom, except Aruba}}

| New Zealand

| 1931-07-29{{efn|name=NZ3|Extended to the Cook Islands, Niue and Tokelau}}

| 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{{efn|name=SU}}

| 1978-03-29{{efn|name=SU}}

| 1981-04-22{{efn|name=SU}}

| 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{{efn|name=SM|Ratification as Serbia and Montenegro}}

| 1997-01-02{{efn|name=SM}}

| 1994-02-25{{efn|name=SM}}

| —

| 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{{efn|name=SU}}

| 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{{efn|name=SU}}

| 1991-12-25

| —

| —

| —

| Tuvalu

| —

| —

| —

| —

| —

| Uganda

| 1965-06-14

| 1995-02-09

| —

| 1995-01-01

| —

| Ukraine

| 1991-12-25{{efn|name=SU}}

| 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{{efn|name=UK_Paris|Extended to the Isle of Man (1983), Guernsey (from November 2020), Bailiwick of Jersey (from November 2020) and Gibraltar (from January 2021).{{cite web |title=Paris Notification No. 223 - Paris Convention for the Protection of Industrial Property - Declaration by the United Kingdom of Great Britain and Northern Ireland |url=https://www.wipo.int/treaties/en/notifications/paris/treaty_paris_223.html |publisher=WIPO |accessdate=24 August 2020 |date=August 13, 2020}}}}

| 1978-01-24{{efn|name=UK_PCT|Extended to the Isle of Man (from 29 October 1983{{cite web |title=PCT Contracting States |url=https://www.wipo.int/export/sites/www/pct/guide/en/gdvol1/annexes/annexa/ax_a.pdf |website=wipo.int |publisher=WIPO |accessdate=30 October 2020 |quote=The United Kingdom extended the application of the PCT to the Isle of Man with effect from 29 October 1983. |archive-date=1 November 2020 |archive-url=https://web.archive.org/web/20201101085116/https://www.wipo.int/export/sites/www/pct/guide/en/gdvol1/annexes/annexa/ax_a.pdf |url-status=live }}), Hong Kong (1981-1997), Gibraltar (from 1 January 2021){{cite web |title=PCT Contracting States |url=https://www.wipo.int/export/sites/www/pct/guide/en/gdvol1/annexes/annexa/ax_a.pdf |website=wipo.int |publisher=WIPO |accessdate=30 October 2020 |quote=With effect from 1 January 2021, the United Kingdom will extend the application of the PCT to the territory of Gibraltar |archive-date=1 November 2020 |archive-url=https://web.archive.org/web/20201101085116/https://www.wipo.int/export/sites/www/pct/guide/en/gdvol1/annexes/annexa/ax_a.pdf |url-status=live }} and Guernsey (from 23 March 2021)}}

| 1980-12-29{{efn|name=UK_Budapest|Extended to Guernsey, the Isle of Man and Gibraltar from 1 January 2021.}}

| 1995-01-01{{efn|name=UK_PLT_TRIPS}}

| 2006-03-22{{efn|name=UK_PLT_TRIPS|Extended to the Isle of Man}}

| United States of America

| 1887-05-30

| 1978-01-24

| 1980-08-19

| 1995-01-01

| 2013-12-18

| Uruguay

| 1967-03-18

| —

| —

| 1995-01-01

| —

| Uzbekistan

| 1991-12-25{{efn|name=SU}}

| 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

| —