Backup communication channel with the EPO

What do you do when Online Filing breaks down?

Survey on behalf of epi Online Communications Committee
1.What is the size of your office?(Required.)
2.How often do you (as an office) submit any documents with the EPO?(Required.)
3.What is your preferred channel of submitting documents electronically with the EPO?(Required.)
4.Have you ever experienced a situation in which your preferred channel of online communication was unavailable in time a document had to be submitted with the EPO?(Required.)