PCT (Washington, 1970), amended in 1979 and modified in 1984
(PCT Union)
| State |
Date on which State became party to the Treaty |
| Albania |
October 4, 1995 |
| Algeria |
March 8, 2000 |
| Antigua and Barbuda |
March 17, 2000 |
| Armenia(1) |
December 25, 1991 |
| Australia |
March 31, 1980 |
| Austria |
April 23, 1979 |
| Azerbaijan |
December 25, 1995 |
| Barbados |
March 12, 1985 |
| Belarus |
December 25, 1991 |
| Belgium |
December 14, 1981 |
| Belize |
June 17, 2000 |
| Benin |
February 26, 1987 |
| Bosnia and Herzegovina |
September 7, 1996 |
| Brazil |
April 9, 1978 |
| Bulgaria |
May 21, 1984 |
| Burkina Faso |
March 21, 1989 |
| Cameroon |
January 24, 1978 |
| Canada |
January 2, 1990 |
| Central African Republic |
January 24, 1978 |
| Chad |
January 24, 1978 |
| China(2),(3) |
January 1, 1994 |
| Colombia |
February 28, 2001 |
| Congo |
January 24, 1978 |
| Costa Rica |
August 3, 1999 |
| Côte d'Ivoire |
April 30, 1991 |
| Croatia |
July 1, 1998 |
| Cuba |
July 16, 1996 |
| Cyprus |
April 1, 1998 |
| Czech Republic |
January 1, 1993 |
| Democratic People's Republic of Korea |
July 8, 1980 |
| Denmark |
December 1, 1978 |
| Dominica |
August 7, 1999 |
| Ecuador |
May 7, 2001 |
| Estonia |
August 24, 1994 |
| Finland(4) |
October 1, 1980 |
| France,(5) |
February 25, 1978 |
| Gabon |
January 24, 1978 |
| Gambia |
December 9, 1997 |
| Georgia |
December 25, 1991 |
| Germany |
January 24, 1978 |
| Ghana |
February 26, 1997 |
| Greece |
October 9, 1990 |
| Grenada |
September 22, 1998 |
| Guinea |
May 27, 1991 |
| Guinea-Bissau |
December 12, 1997 |
| Hungary |
June 27, 1980 |
| Iceland |
March 23, 1995 |
| India |
December 7, 1998 |
| Indonesia |
September 5, 1997 |
| Ireland |
August 1, 1992 |
| Israel |
June 1, 1996 |
| Italy |
March 28, 1985 |
| Japan |
October 1, 1978 |
| Kazakhstan |
December 25, 1991 |
| Kenya |
June 8, 1994 |
| Kyrgyzstan |
December 25, 1991 |
| Latvia |
September 7, 1993 |
| Lesotho |
October 21, 1995 |
| Liberia |
August 27, 1994 |
| Liechtenstein |
March 19, 1980 |
| Lithuania |
July 5, 1994 |
| Luxembourg |
April 30, 1978 |
| Madagascar |
January 24, 1978 |
| Malawi |
January 24, 1978 |
| Mali |
October 19, 1984 |
| Mauritania |
April 13, 1983 |
| Mexico |
January 1, 1995 |
| Monaco |
June 22, 1979 |
| Mongolia |
May 27, 1991 |
| Morocco |
October 8, 1999 |
| Mozambique |
May 18, 2000 |
| Netherlands(6) |
July 10, 1979 |
| New Zealand |
December 1, 1992 |
| Niger |
March 21, 1993 |
| Norway |
January 1, 1980 |
| Poland |
December 25, 1990 |
| Portugal |
November 24, 1992 |
| Republic of Korea |
August 10, 1984 |
| Republic of Moldova |
December 25, 1991 |
| Romania |
July 23, 1979 |
| Russian Federation |
March 29, 1978(7) |
| Saint Lucia |
August 30, 1996 |
| Senegal |
January 24, 1978 |
| Sierra Leone |
June 17, 1997 |
| Singapore |
February 23, 1995 |
| Slovakia |
January 1, 1993 |
| Slovenia |
March 1, 1994 |
| South Africa |
March 16, 1999 |
| Spain |
November 16, 1989 |
| Sri Lanka |
February 26, 1982 |
| Sudan |
April 16, 1984 |
| Swaziland |
September 20, 1994 |
| Sweden |
May 17, 1978 |
| Switzerland |
January 24, 1978 |
| Tajikistan |
December 25, 1991 |
| The former Yugoslav Republic of Macedonia |
August 10, 1995 |
| Togo |
January 24, 1978 |
| Trinidad and Tobago |
March 10, 1994 |
| Turkey |
January 1, 1996 |
| Turkmenistan |
December 25, 1991 |
| Uganda |
February 9, 1995 |
| Ukraine |
December 25, 1991 |
| United Arab Emirates |
March 10, 1999 |
| United Kingdom(8) |
January 24, 1978 |
| United Republic of Tanzania |
September 14, 1999 |
| United States of America(9),(10) |
January 24, 1978 |
| Uzbekistan |
December 25, 1991 |
| Viet Nam |
March 10, 1993 |
| Yugoslavia |
February 1, 1997 |
| Zimbabwe |
June 11, 1997 |
(Total: 110 States)
(1)
With the declaration provided for in Article 64(5).
(2)
Applies also to the Hong Kong Special Administrative Region with effect from July 1, 1997.
(3)
Not applicable to the Macau Special Administrative Region.
(4)
With the declaration provided for in Article 64(2)(a)(ii).
(5)
Including all Overseas Departments and Territories.
(6)
Ratification for the Kingdom in Europe, the Netherlands Antilles and Aruba.
(7)
Date of ratification of the Soviet Union, continued by the Russian Federation as from December 25, 1991.
(8)
The United Kingdom extended the application of the PCT to the Isle of Man with effect from October 29, 1983.
(9)
With the declarations provided for in Articles 64(3)(a) and 64(4)(a).
(10)
Extends to all areas for which the United States of America has international responsibility.