https://www.epo.org/en/searching-for-patents/data/coverage/regular

Updated regularly

Visit our Bulk Data Sets webpage to download the Publication, application, and priority numbers concordance table. 

The concordance table is updated weekly and describes the number formats used in the EPO's prior art collection, tools such as Espacenet, European Patent Register and PATSTAT, PISE services and the OPS API. 

File descriptionFile typeFile sizeLast updatedDownload
Overview of citation data in the EPO's citation database (REFI)PDF258 KBW 29/2025download
IP5 citations coverage as available at the EPOPDF73 KBW 29/2023download
Sources of information on national phase entries of EP patentsPDF13 KBW 29/2023download
Where to find European patent documentsPDF131 KBW 33/2017download