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Kind codes

The following is a list of European and international patent document kind codes.


EP A documents

European patent applications, published 18 months after filing with the EPO or 18 months after the priority date

A1

European patent application published with European search report

A2

European patent application published without European search report (search report not available at publication date)

A3

Separate publication of European search report

A4

Supplementary search report

A8

Corrected title page of A document, ie. A1 or A2 document

A9

Complete reprint of A document, ie. A1, A2 or A3 document

EP B documents

European patent specifications

B1

European patent specification (granted patent)

B2

New European patent specification (amended specification after opposition procedure)

B3

European patent specification (after limitation procedure)

B8

Corrected title page of B document (i.e. B1 or B2 document)

B9

Complete reprint of B document (i.e. B1 or B2 document)

WO A documents

A1

International application published with international search report

A2

International application published without international search report or (from 1 January 2009 onwards) international application published with declaration under Article 17(2)(a)

A3

Later publication if ISR with revised front page

A4

(from 1 January 2009 onwards) Later publication of amended claims and/or statement (Art.19)

For more information on the different types of patent document, visit the WIPO website.