Contracting Parties > Madrid Protocol (Total Contracting Parties : 101) > Sao Tome and Principe
| Contracting Party | Signature | Instrument | In Force | Details |
|---|---|---|---|---|
| African Intellectual Property Organization (OAPI) | Accession: December 5, 2014 | March 5, 2015 | Details | |
| European Union (EU) | Accession: July 1, 2004 | October 1, 2004 | Details | |
| Sao Tome and Principe | Accession: September 8, 2008 | December 8, 2008 |