Albania – May 17, 2010 (in force)
Algeria
Armenia – September 17, 2013 (in force)
Australia – March 16, 2009 (in force)
Austria
Bahrain – December 15, 2005 (in force)
Belgium
Bosnia and Herzegovina – May 9, 2012 (in force)
Brazil
Burkina Faso
Burundi
Canada
Côte d’Ivoire
Croatia – April 28, 2005 (in force)
Cuba
Czech Republic
Democratic People’s Republic of Korea
Denmark – April 28, 2005 (in force)
Estonia – April 28, 2005 (in force)
European Patent Organisation (EPO)
Finland – March 6, 2006 (in force)
France – January 5, 2010 (in force)
Gambia
Germany
Ghana
Greece
Haiti
Hungary– March 12, 2008 (in force)
Ireland– May 27, 2012 (in force)
Israel
Italy
Kazakhstan – October 19, 2011 (in force)
Kenya
Kyrgyzstan – April 28, 2005 (in force)
Latvia – June 12, 2010 (in force)
Lebanon
Liberia
Liechtenstein – December 18, 2009 (in force)
Lithuania – February 3, 2012 (in force)
Luxembourg
Madagascar
Malawi
Monaco
Montenegro – March 9, 2012 (in force)
Netherlands – December 27, 2010 (in force)
Nigeria – April 28, 2005 (in force)
Oman – October 16, 2007 (in force)
Poland
Portugal
Republic of Moldova – April 28, 2005 (in force)
Romania – April 28, 2005 (in force)
Russian Federation – August 12, 2009 (in force)
San Marino
Sao Tome and Principe
Saudi Arabia – August 3, 2013 (in force)
Serbia – August 20, 2010 (in force)
Slovakia – April 28, 2005 (in force)
Slovenia – April 28, 2005 (in force)
Spain – November 6, 2013 (in force)
Sudan
Swaziland
Sweden – December 27, 2007 (in force)
Switzerland – July 1, 2008 (in force)
the former Yugoslav Republic of Macedonia – April 22, 2010 (in force)
Togo
Turkey
Uganda
Ukraine – April 28, 2005 (in force)
United Kingdom – March 22, 2006 (in force)
United States of America – December 18, 2013 (in force)
Uzbekistan – July 19, 2006 (in force)
Zambia