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USPTO Patent Application Continuity / Family Lookup
USPTO Patent Application Continuity / Family Lookup is a paid API for AI agents from agents.x402stock.xyz, paid per call via MPP, $0.01/call, status unknown (last checked 2026-09-14).
Returns the patent family tree for a given USPTO application number, listing parent and child applications with filing dates, status, and continuity relationship types.
Price / call$0.01
Success—
StatusUnknown
How this service works
The patent family for one application — pass the `{application}` number. Returns parent and child applications with their numbers, filing dates, status, and the continuity relationship (continuation, divisional, national-stage entry, etc.). Maps how deep a company's protection on an invention runs. Source: USPTO. From x402stock, a market & economic data API (x402, USDC).
Output
A JSON object containing the queried application number, a timestamp, the data source (USPTO), an array of parent applications (each with application number, filing date, status, and relationship type), and an array of child applications (each with application number, filing date, status, and relationship type), plus attribution text.
Example use cases
Competitive patent landscape analysis
“I'm researching a competitor's technology. Can you look up the patent family for USPTO application 17654321 and show me all the related continuation and divisional applications so I know how broad their protection is?”
IP due diligence for acquisition
“We're doing due diligence on a startup — can you pull the patent continuity data for their key application 15987654 and show me the full tree of parent and child applications with filing dates and statuses?”
Tracking patent prosecution history
“I need to understand the prosecution history for application 16500123 — specifically whether it has any parent applications it claims priority from and what child applications have been filed off of it.”
Technical details
Endpoint
GEThttps://agents.x402stock.xyz/api/v1/patent/{application}/continuityWhen to prefer
Use this endpoint when you need to map the full continuity chain of a specific USPTO patent application — its parent priority claims and child continuation, divisional, or national-stage entries. Prefer this over general patent search when you already have an application number and need structured family hierarchy data rather than text search results.
Side effects
- Invalid or nonexistent application number returns empty parents/children arrays or error
- Application number format errors may cause request failure
- USPTO data may have a lag so very recent filings might not appear
- Some relationship or status fields may be null if USPTO data is incomplete
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| applicationrequired | string | The application path parameter. |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| as_ofrequired | string | |
| sourcerequired | string | |
| parentsrequired | array | |
| childrenrequired | array | |
| attributionrequired | string | |
| application_numberrequired | string |
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