European patent application, published 18 months after filing with the EPO or 18 months after priority date
A1 documentEuropean patent application published with European search report
A2 documentEuropean patent application published without European search report (search report not available at the publication date)
A3 documentSeparate publication of the European search report
A4 documentSupplementary search report
Corrected A document
A8 documentCorrected title page of an A document, ie. A1 or A2 document.
A9 documentComplete reprint of an A document, ie. A1, A2 or A3 document.
European patent specification
B1 documentEuropean patent specification (granted patent)
B2 documentNew European patent specification (amended specification)
B3 documentEuropean patent specification (after limitation procedure)
Corrected B document
B8 documentCorrected title page of a B document, ie. B1 or B2 document.
B9 documentComplete reprint of a B document, ie. B1 or B2 document.
Publication date of the original European patent document, ie. A1, A2, A3, B1, B2 or B3 document.
Issue date (of the correction)
Date of issue of the corrected version of a European patent document.
Supplementary correction code indicating the first (1st) corrected version of a patent document
Supplementary correction code indicating the second (2nd) corrected version of a patent document
For further information on corrections to European patent documents, please forward your request to:
EPO Quality Control