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USPTO Patents API

Patent search and retrieval

USPTO Patents API is one of 5 APIs that USPTO publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

This API exposes 1 JSON Schema definition.

Tagged areas include Patents. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, and 1 JSON Schema.

This API exposes 3 operations across 3 paths, and defines 8 schemas. It is described by OpenAPI 3.1.0, at version 3.0.

Requests are made against 2 base URLs: https://data.uspto.gov/api/v1, https://developer.uspto.gov/ds-api.

3 operations 3 paths 8 schemas 3 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.1.0
API Version
3.0
Base URL
https://data.uspto.gov/api/v1
Authentication
API Key
Resource Areas
1

Authentication & Security 1

USPTO Patents API declares 1 security scheme for authenticating requests. An API key is passed in the header as X-API-KEY (ApiKeyHeader). By default, every request must be authenticated.

  • ApiKeyHeader — USPTO Open Data Portal API key

Paths & Operations 3

Across 3 paths, the API surfaces 3 operations — 3 GET. Each is listed below with its method, path, parameters, and response codes.

Patents 3

Patent search and retrieval

GET
/patent/applications/search
Search patent applications
searchPatentApplications 10 params → 200401429
GET
/patent/applications/{applicationNumber}
Get patent application details
getPatentApplication 1 param → 200404
GET
/patent/grants/{patentNumber}
Get a granted patent
getGrantedPatent 1 param → 200404

Schemas 8

The contract defines 8 schemas that model the data the API accepts and returns. The most detailed are PatentApplication (12 properties), PatentSummary (10 properties), Assignee (5 properties), Inventor (5 properties). Each schema is shown below with its type and property counts.

PatentSummary
object
10 properties
PatentApplication
object
12 properties
Assignee
object
5 properties
PatentSearchResponse
object
4 properties
Inventor
object
5 properties
ProsecutionEvent
object
4 properties
GrantedPatent
Classification
object
3 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

uspto-patents-api-openapi.yml Raw ↑

Other APIs USPTO publishes across the network.

USPTO Patent Assignment Search API
USPTO Assignments API
USPTO PTAB API
USPTO Trademarks API
Where this information came from

This is an independent, third-party profile of USPTO Patents API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

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