| Contracting Parties/Signatories | Signature | Instrument | In Force | Details |
|---|
| Albania | | Accession: February 17, 2010 | May 17, 2010 | |
| Algeria | June 2, 2000 | | | |
| Australia | | Accession: December 16, 2008 | March 16, 2009 | |
| Austria | June 2, 2000 | | | |
| Bahrain | | Accession: September 15, 2005 | December 15, 2005 | |
| Belgium | June 2, 2000 | | | |
| Bosnia and Herzegovina | | Accession: February 9, 2012 | May 9, 2012 | |
| Brazil | June 2, 2000 | | | |
| Burkina Faso | May 11, 2001 | | | |
| Burundi | June 2, 2000 | | | |
| Canada | May 21, 2001 | | | |
| Côte d'Ivoire | July 20, 2000 | | | |
| Croatia | June 2, 2000 | Ratification: December 20, 2004 | April 28, 2005 | |
| Cuba | June 2, 2000 | | | |
| Czech Republic | June 2, 2000 | | | |
| Democratic People's Republic of Korea | June 2, 2000 | | | |
| Denmark | June 2, 2000 | Ratification: March 16, 2004 | April 28, 2005 | |
| Estonia | June 2, 2000 | Ratification: April 14, 2003 | April 28, 2005 | |
| European Patent Organisation (EPO) | May 17, 2001 | | | |
| Finland | | Accession: December 6, 2005 | March 6, 2006 | |
| France | September 14, 2000 | Ratification: October 5, 2009 | January 5, 2010 | |
| Gambia | June 2, 2000 | | | |
| Germany | May 29, 2001 | | | |
| Ghana | June 2, 2000 | | | |
| Greece | June 2, 2000 | | | |
| Haiti | June 2, 2000 | | | |
| Hungary | June 2, 2000 | Ratification: December 12, 2007 | March 12, 2008 | |
| Ireland | May 31, 2001 | Ratification: February 27, 2012 | May 27, 2012 | |
| Israel | June 2, 2000 | | | |
| Italy | June 2, 2000 | | | |
| Kazakhstan | | Accession: July 19, 2011 | October 19, 2011 | Details |
| Kenya | June 2, 2000 | | | |
| Kyrgyzstan | June 2, 2000 | Ratification: April 24, 2002 | April 28, 2005 | |
| Latvia | June 2, 2000 | Ratification: March 12, 2010 | June 12, 2010 | |
| Lebanon | June 2, 2000 | | | |
| Liberia | June 2, 2000 | | | |
| Liechtenstein | | Accession: September 18, 2009 | December 18, 2009 | |
| Lithuania | | Accession: November 3, 2011 | February 3, 2012 | |
| Luxembourg | June 2, 2000 | | | |
| Madagascar | June 2, 2000 | | | |
| Malawi | June 2, 2000 | | | |
| Monaco | June 28, 2000 | | | |
| Montenegro | | Accession: December 9, 2011 | March 9, 2012 | |
| Netherlands | May 31, 2001 | Ratification: September 27, 2010 | December 27, 2010 | |
| Nigeria | June 2, 2000 | Ratification: December 19, 2002 | April 28, 2005 | |
| Oman | | Accession: July 16, 2007 | October 16, 2007 | |
| Poland | June 2, 2000 | | | |
| Portugal | June 2, 2000 | | | |
| Republic of Moldova | June 2, 2000 | Ratification: September 27, 2001 | April 28, 2005 | |
| Romania | June 2, 2000 | Ratification: January 28, 2005 | April 28, 2005 | |
| Russian Federation | | Accession: May 12, 2009 | August 12, 2009 | Details |
| San Marino | October 10, 2000 | | | |
| Sao Tome and Principe | June 2, 2000 | | | |
| Saudi Arabia | | Accession: May 3, 2013 | August 3, 2013 | |
| Serbia | | Accession: May 20, 2010 | August 20, 2010 | |
| Slovakia | | Accession: July 16, 2002 | April 28, 2005 | |
| Slovenia | June 2, 2000 | Ratification: May 8, 2002 | April 28, 2005 | |
| Spain | June 2, 2000 | | | |
| Sudan | June 2, 2000 | | | |
| Swaziland | June 2, 2000 | | | |
| Sweden | May 17, 2001 | Ratification: September 27, 2007 | December 27, 2007 | |
| Switzerland | June 2, 2000 | Ratification: March 31, 2008 | July 1, 2008 | |
| the former Yugoslav Republic of Macedonia | | Accession: January 22, 2010 | April 22, 2010 | |
| Togo | June 2, 2000 | | | |
| Turkey | June 2, 2000 | | | |
| Uganda | June 2, 2000 | | | |
| Ukraine | | Accession: March 31, 2003 | April 28, 2005 | |
| United Kingdom | June 2, 2000 | Ratification: December 22, 2005 | March 22, 2006 | Details |
| United States of America | June 2, 2000 | | | |
| Uzbekistan | | Accession: April 19, 2006 | July 19, 2006 | |
| Zambia | June 2, 2000 | | | |
