https://www.epo.org/en/service-support/availability-online-services/temporary-unavailability-open-patent-services-ops
Temporary unavailability of Open Patent Services (OPS) on Thursday 20 March 2025
Due to technical maintenance work, Open Patent Services (OPS) will not be available between 19.00 and 19.30 hrs CET on Thursday, 20 March 2025
We apologise for any inconvenience.