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WIPO Standards (document kind codes, dates)

Purpose
Decode kind codes (A1, B2…) and INID codes on the front page of a patent.
Coverage
ST.16 kind codes, ST.9 INID codes, country codes.
Access conditions
Free
Region
Worldwide
Link
https://www.wipo.int/standards/en/
Review date
29 Oct 2026
Link check
Reachable when checked on 28 Oct 2026
Tags
how-to, codes