The European Patent Office is based on EPC Set up, Responsible for reviewing grants may be available at 44 European patents in force in each country (European patent) , It is headquartered in Munich, Germany, In The Hague, Berlin, There are offices in Vienna and Brussels.

　　■　website: www. epo. org

　　■　telephone: +49 (0) 89 2399-4500 (Munich)

　　■　　　　+49 (0) 30 25901-4500 (Berlin)

　　■　　　　+31 (0) 70 340-4500 (The Hague)

　　■　　　　+43 (0) 1 52126-4500 (Vienna)

European countries where patents are valid

　　1．EPC Member state (member state, 39 country)

　　Albania, Austria, Belgium, Bulgaria, Switzerland, Cyprus, Czech Republic, Germany, Denmark, Estonia, Spain, Finland, France, Britain, Greece, Croatia, Hungary, Ireland, Iceland, Italy, Liechtenstein, Lithuania, Luxembourg, Latvia, Monaco, Montenegro, North Macedonia, Malta, Holland, Norway, Poland, Portugal, Romania, Serbia, Sweden, Slovenia, Slovakia, SAN Marino, Turkey

　　2．Extension country (extension state, 1 country)

　　Bosnia－Segovia

　　3．Country of entry into force (validation state, 4 country)

　　Morocco, Moldova, Tunisia, Cambodia

More details are available: https: //www. epo. org/law-practice/legal-texts/official-journal/2022/etc/se2/p1. html