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Guide for applicants, Part 1: How to get a European patent

 
 
Where to file
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You can file European patent applications 
(a) 
with the EPO in Munich, its branch at The Hague or its sub-office in Berlin, but not at its sub-office in Vienna.  
(b) 
with the central industrial property office or other competent authority of a contracting state if the law of that state so permits or prescribes. 
Divisional applications must however be filed direct with the EPO.  
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The most popular way of filing European patent applications is online, using the EPO Online Filing software, provided free of charge. More than 80% of all European patent applications are filed online. 
If you decide not to file online, the EPO's addresses are given in Annex IV. The addresses of the national patent authorities and national provisions of the contracting states governing compulsory or optional filing of European patent applications with such authorities are given in "National law relating to the EPC" (see point 4 above).