The following (89) States have ratified the Treaty on September 4, 2023:
- Albania
- Antigua and Barbuda
- Armenia
- Australia
- Austria
- Azerbaijan
- Bahrain
- Belarus
- Belgium
- Bosnia and Herzegovina
- Brunei Darussalam
- Bulgaria
- Canada
- Chile
- China
- Colombia
- Costa Rica
- Croatia
- Cuba
- Czech Republic
- Denmark
- Dominican Republic
- El Salvador
- Estonia
- Finland
- France
- Georgia
- Germany
- Greece
- Guatemala
- Honduras
- Hungary
- Iceland
- India
- Indonesia
- Ireland
- Israel
- Italy
- Japan
- Jordan
- Kazakhstan
- Korea (North)
- Korea (South)
- Kyrgyzstan
- Latvia
- Liechtenstein
- Lithuania
- Luxembourg
- Malaysia
- Mexico
- Moldova
- Monaco
- Montenegro
- Morocco
- Netherlands*
- New Zealand
- Nicaragua
- North Macedonia
- Norway
- Oman
- Panama
- Paraguay
- Peru
- Philippines
- Poland
- Portugal
- Qatar
- Romania
- Russian Federation
- Rwanda
- Saudi Arabia
- Serbia
- Singapore
- Slovakia
- Slovenia
- South Africa
- Spain
- Sweden
- Switzerland
- Tajikistan
- Trinidad and Tobago
- Tunisia
- Türkiye
- Ukraine
- United Arab Emirates
- United Kingdom
- United States of America
- Uzbekistan
- Vietnam;
as well as the African Intellectual Property Organization (OAPI), African Regional Intellectual Property Organization (ARIPO), the Eurasian Patent Organization (EAPO), and the European Patent Organization (EPO).
* extended to Aruba, Curaçao, Sint Maarten and BES Islands.