4.1.12.In which language should the demand be filed? 

4.1.045The demand must be filed in the language in which the international application was filed, except in the following situations: 

–If the international application was filed in a language other than the language in which it was published, the demand must be filed in the language of publication (e.g. application filed in Dutch, see point 4.1.044).

–If a translation of the application has to be filed with the EPO as IPEA (see points 4.1.041-point 4.1.043), the demand must be filed in the language of that translation (e.g. application filed in Spanish, see point 4.1.042).