Temporary unavailability of web services on 28/29 January

Owing to technical maintenance work, a number of EPO website services will be temporarily unavailable this weekend.

The outage will affect:

• The EPO Online Services portal
• Online Filing
• Espacenet
• the European patent register
• Open Patent Services
• discussion forums
• online forms
• the calendar of events and
• the database of professional representatives.

The websites for Trilateral and IP5 co-operation and the Common Patent Classification (CPC) will also be affected on 28 January.