There are, as of April 2019, 38 Contracting States to the EPC, also called member states of the European Patent Organisation: Albania, Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Macedonia, Malta, Monaco, Netherlands, Norway, Poland, Portugal, Romania, San Marino, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey, and the United Kingdom (see European Patent Convention article for the dates of entry in force in each country). That is, all EU member states are also members of the European Patent Organisation, and, additionally, Albania, Iceland, Liechtenstein, Macedonia, Monaco, Norway, San Marino, Serbia, Switzerland, Turkey, and the United Kingdom are also members of the European Patent Organisation. The most recent member state to join the EPC entered was Serbia which did so on 1 October 2010.