{"uid":"cap_uNh4c5hAL6SXKBWFJxfek","slug":"agents-x402stock-xyz-uspto-patent-application-assignment-records-9c3cad96","name":"USPTO Patent Application Assignment Records","description":"Recorded ownership transfers (assignments) for one patent application — pass the `{application}` number. Each carries the reel/frame, conveyance text, received & recorded dates, assignors, assignees (with location), and the recorded-document link. A patent sale, collateral pledge, or M&A signal the price/filing feeds miss. Source: USPTO. From x402stock, a market & economic data API (x402, USDC).","url":"https://agents.x402stock.xyz/api/v1/patent/{application}/assignments","method":"GET","headers":{},"bodySchema":{"type":"object","required":["application"],"properties":{"application":{"type":"string","description":"The application path parameter."}}},"responseSchema":{"type":"object","required":["source","as_of","application_number","count","assignments","attribution"],"properties":{"as_of":{"type":"string"},"count":{"type":"number"},"source":{"type":"string","const":"uspto"},"assignments":{"type":"array","items":{"type":"object","required":["reel_frame","conveyance","received_date","recorded_date","assignors","assignees","document_url"],"properties":{"assignees":{"type":"array","items":{"type":"object","required":["name","location"],"properties":{"name":{"anyOf":[{"type":"string"},{"type":"null"}]},"location":{"anyOf":[{"type":"string"},{"type":"null"}]}},"additionalProperties":false}},"assignors":{"type":"array","items":{"type":"string"}},"conveyance":{"anyOf":[{"type":"string"},{"type":"null"}]},"reel_frame":{"anyOf":[{"type":"string"},{"type":"null"}]},"document_url":{"anyOf":[{"type":"string"},{"type":"null"}]},"received_date":{"anyOf":[{"type":"string"},{"type":"null"}]},"recorded_date":{"anyOf":[{"type":"string"},{"type":"null"}]}},"additionalProperties":false}},"attribution":{"type":"string"},"application_number":{"type":"string"}},"additionalProperties":false},"example":null,"exampleRequest":null,"tags":[],"displayCostAmount":"0.02","displayCostAsset":"USD","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.02/call","primary":{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_U0pPCHsf9HiBGp9Pwjdll","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x20C000000000000000000000b9537d11c60E8b50","unit":"request","depositMicros":null,"planRef":null}],"brandName":"agents.x402stock.xyz","brandSlug":"agents-x402stock-xyz-mpp","brandBaseUrl":"https://agents.x402stock.xyz","brandDocsUrl":null,"whatItDoes":"Returns all recorded ownership transfers (assignments) for a given USPTO patent application, including conveyance details, assignors, assignees, and document links.","exampleAgentPrompt":"Pull up all the recorded ownership transfers for USPTO patent application 16123456 — I want to see who the assignors and assignees are, what type of conveyance it was, and links to the actual recorded documents.","exampleUseCases":[{"title":"M&A patent portfolio due diligence","prompt":"I'm evaluating an acquisition target — can you pull all the recorded assignments for patent application 17456789 so I can see if there are any collateral pledges or prior ownership transfers I should know about?"},{"title":"Tracking a competitor's patent sales","prompt":"Has Apple or any of its subsidiaries recently received a transfer of patent application 15234567? Show me the full assignment history including assignor names and conveyance types."},{"title":"Startup IP ownership verification","prompt":"We're doing investor due diligence on a startup — can you check the USPTO assignment records for patent application 16987654 to confirm ownership is cleanly held and hasn't been pledged as collateral?"}],"resultDescription":"A JSON object containing the application number, source (USPTO), timestamp, total assignment count, and an array of assignment records. Each record includes the reel/frame identifier, conveyance text (e.g. 'ASSIGNMENT OF ASSIGNORS INTEREST', 'SECURITY AGREEMENT'), received and recorded dates, list of assignor names, list of assignees with name and location, and a URL to the recorded document on USPTO.","failureModes":["Invalid or non-existent application number returns empty assignments array or error","Application number with no recorded assignments returns count of 0 and empty array","Malformed application number string may return a 400 or empty result","USPTO data source unavailability may cause upstream timeout or 503","Payment failure via x402/USDC will prevent the request from completing"],"whenToPreferThis":"Use this endpoint when you need authoritative, USPTO-sourced records of who has owned, pledged, or transferred a specific patent application — particularly useful for M&A due diligence, competitive intelligence, IP chain-of-title research, and detecting collateral pledges or security agreements that don't appear in standard patent or SEC filing feeds. Prefer this over general patent search tools when you have a specific application number and need granular assignment-level data with document links.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:45:24.829Z","isFirstParty":false}