European Patent Office

Accepted means of filing

Online: through ePCT or as a WASP file created by PCT-SAFE or EPO-OLF client software; further options are the EPO web-form filing service and the EPO case management system (CMS).

On physical media: as a WAD or WASP file created by PCT-SAFE or EPO-OLF (on CD-R)


Accepted digital certificates

Valid certificates issued by one of the following Certification Authorities (CA):

  • CA for EPO


Accepted formats

This Office accepts the filing of the application body (description, claims and abstract) in character-coded (e.g. XML) and image format (e.g. PDF). It also accepts the inclusion of application documents in pre-conversion format, according to Administrative Instruction 706, if created by any of the following software: Corel, OpenOffice Writer or MS Word. For documents created by other software, see Special Edition No. 3 OJ EPO 2007, 17 (

Sequence listing should preferably be filed, as a separate part of the description, in WIPO's ST.25 text format (no additional fees).



Details can be found on the website