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Open Source Filings – USPTO Patent Search
x402
Open Source Filings – USPTO Patent Search is a paid API for AI agents from api.osf-master-server.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).
Search granted US patents from the USPTO Open Data Portal by keyword, assignee, inventor, or patent number, returning structured patent metadata with provenance URLs.
Price / call$0.05
Success—
StatusUnknown
How this service works
Search granted US patents from the USPTO Open Data Portal by keyword: invention title, assignee company, inventor name, patent number, or technology area. Returns patent number, title, grant date, filing date, assignee, inventors, USPC classification and a provenance URL per match. For prior art checks, freedom to operate research, competitor IP monitoring, and patent portfolio lookup.
Output
Returns a list of matching granted US patents, each with patent number, invention title, grant date, filing date, assignee name, inventor names, USPC classification code, and a provenance URL linking back to the official USPTO record.
Example use cases
Prior art check for new invention
“I'm about to file a patent for a new method of using graphene in flexible displays — can you search US patents to see if there's any prior art on graphene flexible display technology?”
Competitor IP portfolio monitoring
“Pull up all granted US patents assigned to Boston Scientific in the last few years so I can see what areas they're patenting in and track their IP strategy.”
Freedom to operate research
“We're launching a product using CRISPR-Cas9 gene editing for agricultural use — can you search USPTO patents on CRISPR agricultural applications so our legal team can assess freedom to operate?”
Technical details
Endpoint
GEThttps://api.osf-master-server.com/x402/patents/search/:queryWhen to prefer
Use this endpoint when you need structured, provenance-stamped data from the official USPTO patent corpus — specifically for prior art searches, freedom-to-operate analysis, competitor IP monitoring, or patent portfolio lookups. Prefer this over general web search when you need authoritative, machine-readable patent records with grant dates, filing dates, USPC classifications, and official provenance links. Ideal for legal research workflows, AI agents doing IP due diligence, or systems that need to cite official USPTO sources.
Side effects
- No matching patents found for the query — returns empty result set
- Overly broad keyword returns too many low-relevance results
- Misspelled assignee or inventor name yields no matches
- Query too ambiguous to retrieve meaningful results
- USPTO Open Data Portal upstream unavailability causes request failure
- Rate limiting or payment failure for $0.05 USDC per call
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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