Downloading Online Filing 5.04 from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this software available. The software lies within Office Tools, more precisely Document management.
Commonly, this program's installer has the following filenames: OLFClient.exe and OLFSManager.exe etc. This free program is a product of European Patent Office. The most popular versions among the software users are 5.0 and 4.0. We recommend checking the downloaded files with any free antivirus.
From the developer:
You can use the Online Filing software to file the following applications and documents with the EPO:
EP, Euro-PCT and PCT applications
submissions in opposition, appeal, limitation and revocation proceedings
subsequently filed documents for all EP proceedings.
You may want to check out more software, such as DriveHQ Online Backup, Memopal Online Backup or Rogers Online Protection Basic, which might be related to Online Filing.
Reference
Personal Security