{
 "endpoint": "/api/v1/patent/foreign_citation/",
 "data_version": "20261027.2",
 "as_of": "2026-10-27",
 "routes": [
  "/api/v1/patent/foreign_citation/"
 ],
 "aliases": [],
 "response_key": "foreign_citations",
 "default_f": [
  "patent_id",
  "citation_sequence",
  "citation_number"
 ],
 "default_s": [
  {
   "patent_id": "asc",
   "citation_sequence": "asc"
  }
 ],
 "default_o": {
  "pad_patent_id": false
 },
 "sortable_fields": [
  "patent_id",
  "citation_number",
  "citation_sequence",
  "citation_date",
  "citation_category",
  "citation_country"
 ],
 "nested_groups": [],
 "q_required": true,
 "detail_key": null,
 "in_this_build": true,
 "fields": [
  {
   "name": "patent_id",
   "type": "string",
   "kind": "keyword"
  },
  {
   "name": "patent",
   "type": "string (URL)",
   "kind": "keyword",
   "note": "Link to the detail record: https://patentref.io/api/v1/patent/<id>/, with a \"/\" in the id written \":\"; null when the id is null. Kind: keyword: in q this name matches the id behind the link (for example \"H01\" for cpc_current.cpc_class), not the URL."
  },
  {
   "name": "citation_number",
   "type": "string",
   "kind": "keyword"
  },
  {
   "name": "citation_sequence",
   "type": "integer",
   "kind": "number"
  },
  {
   "name": "citation_date",
   "type": "string",
   "kind": "date"
  },
  {
   "name": "citation_category",
   "type": "string",
   "kind": "keyword"
  },
  {
   "name": "citation_country",
   "type": "string",
   "kind": "keyword",
   "note": "The two-letter office code printed on the grant: mostly the WIPO codes (GB, EP for the European Patent Office, WO for international applications), with \"UK\" on some older rows."
  }
 ],
 "operation_id": "ForeignCitationList"
}