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USPTO Patent Search API
x402
USPTO Patent Search API is a paid API for AI agents from x402.agentutility.ai, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-15).
Search USPTO patents by keyword, inventor, assignee, CPC class, or filing date range, returning abstracts, publication numbers, inventors, and assignees.
Price / call$0.05
Success—
StatusUnknown
How this service works
Search USPTO patents by keyword, inventor, assignee, CPC class, or filing date range. Returns abstracts, inventors, assignees, and publication numbers from the USPTO Open Data backend — a patent lookup and prior-art search endpoint for agents.
Output
Returns a list of matching patents from the USPTO Open Data backend, each including the publication number, title, abstract text, inventor names, assignee names, filing date, and CPC classification codes.
Example use cases
Prior art search for new invention
“I'm about to file a patent for a new method of battery thermal management using phase-change materials — can you search the USPTO for any existing patents on that topic so I can see what prior art exists?”
Competitor patent portfolio research
“Search USPTO patents assigned to 'Tesla Motors' with CPC class B60L to find their recent battery and electric vehicle patents — I need abstracts and publication numbers.”
Inventor patent history lookup
“Find all USPTO patents where 'Geoffrey Hinton' is listed as an inventor, and give me the publication numbers, titles, and abstracts.”
Technical details
Endpoint
POSThttps://x402.agentutility.ai/patent-search-api?utm_source=zero.xyzWhen to prefer
Use this endpoint when an agent needs to search or look up USPTO patent records for prior art research, competitive intelligence, inventor history, or technology landscape analysis. Prefer it over generic web search when structured patent metadata (publication numbers, abstracts, CPC codes, inventor/assignee fields) is needed directly from the USPTO source. Best for agentic workflows that need programmatic patent data without scraping.
Side effects
- No results found for overly narrow or misspelled query terms
- Rate limiting or payment failure via x402 protocol returns 402 error
- Invalid CPC class code returns empty or error response
- Date range with incorrect format causes query failure
- USPTO Open Data backend downtime causes 503 or timeout errors
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"query": "quantum computing",
"patents": [],
"returned": 5
}
}Tags
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