USPTO Patents
US patent grants with assignees, inventors, CPC classifications, and citation data
US patent data from the USPTO PatentsView API. Includes utility, design, plant, and reissue patents with full metadata: titles, abstracts, assignee organizations, inventor names, CPC and USPC classifications, filing and grant dates, number of claims, and citation counts. Updated weekly from the free PatentsView API — no authentication required.
x402 API — $0.018/query Snowflake — $0.027/query Databricks — $0.0216/query
CPC Classification sections
Patents are classified using the Cooperative Patent Classification (CPC) system:
A Human Necessities
B Operations / Transport
C Chemistry / Metallurgy
D Textiles / Paper
E Fixed Constructions
F Mechanical Engineering
G Physics
H Electricity
Use cases
- ✓ Patent landscape analysis by technology sector
- ✓ Competitive IP portfolio benchmarking
- ✓ Prior art research for patent filings
- ✓ Inventor and assignee tracking across industries
- ✓ M&A due diligence — IP asset valuation
- ✓ Emerging technology trend detection via CPC sections
Data fields
| Field | Type | Description |
|---|---|---|
| patent_number | string | US patent number (unique identifier) |
| patent_title | string | Patent title |
| patent_abstract | string | Patent abstract |
| patent_type | string | Type: utility, design, plant, reissue |
| patent_date | date | Grant date |
| application_date | date | Filing / application date |
| assignee_organization | string | Primary assignee organization name |
| assignee_country | string | Assignee country |
| inventor_first_name | string | First inventor first name |
| inventor_last_name | string | First inventor last name |
| inventor_country | string | First inventor country |
| cpc_section_id | string | CPC section (A-H) |
| cpc_group_id | string | CPC group code |
| uspc_mainclass_id | string | USPC main classification |
| num_claims | integer | Number of claims |
| num_cited_by_us_patents | integer | Number of US patents citing this patent |
| num_us_patent_citations | integer | Number of US patents this patent cites |
| num_foreign_citations | integer | Number of foreign citations |
| collected_at | timestamp | When this record was collected |
Example queries
Search patents by assignee
GET /api/v1/patents?assignee=Google&patent_type=utility&limit=25Find utility patents assigned to Google
Look up a specific patent
GET /api/v1/patents/11234567Returns full details for a specific patent number
Browse free sample data
GET /api/v1/patents/sampleReturns 25 utility patents (free, no payment required)
Data sources
USPTO PatentsView API
Update frequency: Weekly