patent-search

Patent Search Skill

This skill points Claude at the BigQuery patent-search tools registered by the patent-creator MCP server. Call the tools directly; do not shell out to Python.

When to use

• Find prior art by keyword, classification, or family.
• Pull full patent records (title, abstract, claims, description) for US patents.
• Cross-reference an EP/WO patent into its US family member to get full text.

Available MCP tools

| Tool | What it does | |------|--------------| | search_patents_bigquery | Keyword search across abstract / title / claims (US only for claims). | | get_patent_bigquery | Full patent details by publication number. | | search_patents_by_cpc_bigquery | Search by CPC classification prefix. | | search_patents_by_ipc_bigquery | Search by IPC classification prefix (good for older or non-US patents). | | search_patent_family_bigquery | All publications sharing a family ID across jurisdictions. | | check_bigquery_status | Verify auth and quota project before a long workflow. |

Cost notes

BigQuery on-demand pricing is $6.25 / TiB (1 TiB free per month). The MCP server enforces a per-query bytes-billed ceiling, defaulting to 25 GiB. Override via PATENT_BIGQUERY_MAX_BYTES_BILLED if you need a larger scan window.

Choosing keywords

• 2-3 keywords work better than long phrases (BigQuery LIKE matching is literal).
• For non-US patents, claims is empty in the dataset; the MCP keyword tool already searches title/abstract for those jurisdictions. For full text on EP/WO, use the EPO OPS tools instead.
• Use search_patent_family_bigquery to bridge from an EP/WO hit to its US family member when you need claims.

Common workflows

Prior art sweep:

1. search_patents_bigquery(query=…, country="US") — broad scan.
2. Pick the top hits' CPC codes from get_patent_bigquery.
3. search_patents_by_cpc_bigquery(cpc_code=…) — pull adjacent technology.

Cross-jurisdiction lookup:

1. search_patents_bigquery(query=…, country="EP").
2. For any EP hit, get_patent_bigquery to get its family_id.
3. search_patent_family_bigquery(family_id=…) to find the US member with full claims.