ep_patent_search

Search the Espacenet patent collection through the EPO OPS Published Data Search API. Covers 130M+ patent documents from patent offices worldwide. Supports EPO CQL query syntax for field-specific searches. Requires EPO OPS credentials.

Parameters

Parameter	Type	Required	Description
query	string	Yes	Search query — title keywords, applicant name, inventor name, IPC/CPC class, or publication number. Supports CQL syntax (e.g., `ti=robot AND pa=samsung`).
limit	number	No	Maximum results (default: 20, max: 100)
offset	number	No	Result offset for pagination (default: 0)

Example

Request

{
  "name": "ep_patent_search",
  "arguments": {
    "query": "ti=autonomous driving AND pa=waymo",
    "limit": 5
  }
}

Response

{
  "results": [
    {
      "id": "EP-3845123",
      "applicationNumber": "EP20210345123",
      "jurisdiction": "EP",
      "title": "System and Method for Autonomous Vehicle Navigation in Urban Environments",
      "status": "published",
      "applicants": [
        { "name": "Waymo LLC" }
      ],
      "inventors": [
        { "name": "CHEN, Wei" },
        { "name": "GARCIA, Maria" }
      ],
      "ipcClassification": [
        { "code": "G05D 1/02", "sequence": 1 },
        { "code": "B60W 60/00", "sequence": 2 }
      ],
      "cpcClassification": [
        { "code": "G05D 1/0214", "sequence": 1 }
      ],
      "familyId": "75234567",
      "filingDate": "2021-03-15"
    }
  ],
  "pagination": {
    "totalResults": 47,
    "offset": 0,
    "limit": 5,
    "hasMore": true
  },
  "metadata": {
    "query": "ti=autonomous driving AND pa=waymo",
    "totalResults": 47,
    "executionTimeMs": 1120
  }
}

Notes

CQL field codes: ti (title), pa (applicant), in (inventor), cl (claims), ab (abstract), ic (IPC class), cpc (CPC class), pn (publication number), ap (application number).
Combine fields with AND, OR, NOT. Example: ti="solar cell" AND ic=H01L.
Pagination uses offset (not cursor). The next page offset is offset + limit.
The familyId field links to the INPADOC patent family — use patent_family_search to find related filings worldwide.

ep_patent_status — get full details for a specific patent
patent_family_search — find worldwide patent family members
au_patent_search — search Australian patents