New customers are kindly requested to order the full Online Filing client software package, consisting of a smart card, smart card reader, the cryptovision software and the online filing software, by using our enrolment form. Please note that all of the components listed are required to perform online filing successfully.

Once you have received the full Online Filing client software (including the smart card reader software) you will be able to process a number of patches and maintenance updates via the Live Update mechanism built into your client. Alternatively, you can download them from this page (this does not apply to the cryptovision software). The Live Update function only works for national plug-ins if the countries for which you want to download an update have first been selected. Completely new Online Filing versions will not be available via the Live Update functionality and will have to be downloaded from this page, which also contains a complete collection of the latest software updates.

Special note for users who wish to perform filing via the PMS gateway integrated in version 5 of the Online Filing software: Please make sure that the files generated by your PMS can be read and processed by the EPO before you perform filing in production mode. Contact the EPO for further details before you perform filing in production mode. More information on the PMS interface.

Software More info Date and size Download
To install the latest version of the Online Filing software (version 5) in full, please download the following full package of installation and install the above subsequent updates in the order shown (oldest first). Updates are cumulative per area – only the latest EP, IB or national update should be installed; previous updates are included in the latest package and will only be applied if necessary.
Fee update PCT (SE) for September 2023 available for (OLF) V5.14 (build More information 18.9.2023
24.9 MB
5.14 Update for installation of Online Filing (OLF) V5.14 (build 5.0.14) (stand-alone and/or server and thin client) (incorporates updates up to 1 July 2022) More information 1.7.2022
311 MB

Archive of previous versions of the software

More software

Software More info Date and size Download
Development kit
Online Filing V5 PMS development kit (for applicants and PMS providers)  
40 MB
Other installations
MSI and EXE file for alternative installation of Online Filing version 5 (thin client only)  
25 MB
European Patent Office Software Publishing Digital Certificate  


2 MB