patsnap-patent-literature-search

Use the patsnap_search tool with a plain-language query string and set source to "patent". The server interprets semantic intent, so queries like "solid state battery lithium metal anode" work without Boolean operators, and you can add structured filters for precision.

Run patsnap_search with your invention description, a date_to filter before your filing date, and the target jurisdiction. Then call patsnap_fetch on the top result URLs or publication numbers to review full claims and descriptions of the closest prior art.

Yes, patsnap_search accepts a filters object with assignee, inventor, ipc_class, legal_status, jurisdiction, date range, and minimum citations. IPC codes can be broad (H01M10) or specific (H01M10/0562) depending on the precision needed.

Yes, it connects as a streamable HTTP MCP server. For Claude Desktop run the claude mcp add command with the PatSnap URL and your API key; for Cursor or Windsurf add the server URL to your MCP configuration JSON file.

Zero results usually come from overly specific queries or restrictive filters. Simplify keywords, widen the date range, remove jurisdiction limits, use broader IPC classes, and verify assignee name spelling before retrying.

New accounts receive 10,000 free credits, and each search consumes credits based on page size. Reduce page_size, fetch full records only for relevant results, and monitor usage on the Patsnap Open Platform to avoid rate limit errors.