https://www.epo.org/en/about-us/foundation

Legal foundations and member states

The basis upon which the European Patent Organisation was set up.

States which are currently members of the European Patent Organisation.

States with which the European Patent Organisation has signed an extension agreement.

States with which the European Patent Organisation has signed a validation agreement.

Map showing the member states in color red and extension states in blue

The 39 member states of the EPO (dark red), also including one extension state (dark grey) and five validation states (turquoise).

Patent knowledge