patent-search

Patent Search

Search for patents from Google Patents using the google-patent-cli MCP server.

Purpose

Execute patent searches with various filters including query, assignee, country, and date range.

MCP Tool

Uses search_patents MCP tool provided by google-patent-cli.

Usage

Search for patents, then use the returned dataset name to query with Cypher:

patent_search({
  query: "machine learning",
  limit: 20
})

# Returns dataset name like "search-abc123"
# Then query with execute_cypher:
execute_cypher({
  dataset: "search-abc123",
  query: "MATCH (p:Patent) RETURN p.title, p.assignee LIMIT 5"
})

CRITICAL: After searching, always use execute_cypher to retrieve results. Do NOT read the output JSON file directly. The JSON file is an internal artifact — all data is available through cypher queries.

Result Retrieval Patterns

Use these cypher patterns to retrieve search results:

Total count:

MATCH (p:Patent) RETURN COUNT(*) AS count

Top 20 snippets for noise analysis:

MATCH (p:Patent) RETURN p.id, p.title, p.snippet, p.assignee LIMIT 20

Assignee breakdown:

MATCH (p:Patent) RETURN p.assignee, COUNT(*) AS count ORDER BY count DESC

Date range summary:

MATCH (p:Patent) RETURN p.filing_date, p.title LIMIT 10

Available Patent Node Fields

Field	Description
id	Patent ID (e.g., "US9152718B2")
title	Patent title
snippet	Search result snippet
abstract_text	Full abstract
assignee	Assignee/applicant name
filing_date	Filing date
publication_date	Publication date
url	Google Patents URL
legal_status	Legal status
family_id	Patent family ID

Date Filter Examples

Search patents filed in 2023:

patent_search({
  query: "artificial intelligence",
  filing_after: "2023-01-01",
  filing_before: "2023-12-31",
  limit: 10
})

Search patents with priority date in 2024:

patent_search({
  assignee: ["Google LLC"],
  priority_after: "2024-01-01",
  priority_before: "2024-12-31"
})

Search patents published in a specific date range:

patent_search({
  query: "quantum computing",
  publication_after: "2023-06-01",
  publication_before: "2023-12-31"
})

Parameters

• query (string, optional): Free-text search query
• assignee (array of strings, optional): Filter by assignee/applicant names
• country (string, optional): Filter by country code (JP, US, CN, EP)

Date Filters

Three independent date filters are available:

• priority_after (string, optional): Filter by priority date after (YYYY-MM-DD)
• priority_before (string, optional): Filter by priority date before (YYYY-MM-DD)
• publication_after (string, optional): Filter by publication date after (YYYY-MM-DD)
• publication_before (string, optional): Filter by publication date before (YYYY-MM-DD)
• filing_after (string, optional): Filter by filing date after (YYYY-MM-DD)
• filing_before (string, optional): Filter by filing date before (YYYY-MM-DD)

Other Parameters

• limit (number, optional): Maximum number of results (default: 10)
• language (string, optional): Language/locale (ja, en, zh)