{
  "id": "wo_publication_number",
  "name": "PCT international publication number (WO)",
  "status": "draft",
  "doc": "Number that the International Bureau of WIPO gives to a published international patent application under the Patent Cooperation Treaty. Since 2004 it is WO, the four-digit year of publication, a slash and a six-digit serial number, such as WO 2004/123456; data often uses a compact form with a kind code A1 to A4, A8 or A9. Older numbers have a two-digit year and a five- or six-digit serial number.",
  "categories": [
    {
      "id": "legal",
      "name": "Legal and compliance"
    }
  ],
  "langs": [
    {
      "id": "common",
      "name": "Common to most languages"
    }
  ],
  "is_pii": false,
  "classification": "identifier",
  "regexp": "^WO ?(?:(?:19|20)\\d{2}/?\\d{6}|\\d{2}/?\\d{5,6})(?: ?A[1-489])?$",
  "examples": [
    {
      "value": "WO 2004/012345",
      "description": "Publication number in the format of PCT Administrative Instructions Section 404"
    },
    {
      "value": "WO2004012345A2",
      "description": "The same publication in compact form with its kind code"
    },
    {
      "value": "WO 95/26134",
      "description": "Older form with a two-digit year, from the WIPO Handbook"
    },
    {
      "value": "WO 2004/12345",
      "valid": false,
      "description": "A four-digit year needs a six-digit serial number"
    }
  ],
  "links": [
    {
      "type": "doc",
      "url": "https://www.wipo.int/pct/en/texts/ai/s404.html"
    },
    {
      "type": "doc",
      "url": "https://www.wipo.int/en/web/patentscope/data/kind_codes"
    },
    {
      "type": "doc",
      "url": "https://www.wipo.int/documents/d/standards/docs-en-07-02-02.pdf"
    }
  ],
  "type": "datatype",
  "translations": {}
}