API Documentation
Complete guide to using the PatentCobot API
1. Get your API key
Sign up for a free account to get your API key with 3 free requests per month.
curl https://api.patentcobot.com/register2. Make your first request
curl -H "X-API-Key: your-api-key" \
https://api.patentcobot.com/claims/US-9000000-B2/claims/{patent_id}Extract structured data from a US patent document.
Parameters
patent_id- US patent number (e.g., US-9000000-B2)
Headers
X-API-Key- Your API key
Response
{
"patent_number": "US-9000000-B2",
"title": "Machine Learning Framework",
"abstract": "A framework for machine learning applications...",
"claims": [
{
"number": 1,
"text": "A method for training neural networks...",
"dependencies": [],
"type": "independent"
}
],
"inventors": ["Jane Doe", "John Smith"],
"filing_date": "2017-05-15",
"figures": ["Figure 1", "Figure 2"],
"field": "Artificial Intelligence",
"cpc_codes": ["G06N3/08", "G06N20/00"],
"references": ["US-8000000-B1"],
"accuracy_score": 0.9823
}Founder Free
3
requests/month
Per patent over limit: $2
Professional
100
requests/month
$50/mo, Per patent over limit: $1
Enterprise
Unlimited
custom limits
Per patent over limit: $0.50
200OK401Unauthorized404Not Found429Too Many RequestsOfficial USPTO Data
All patent data is sourced directly from the United States Patent and Trademark Office (USPTO) through the official patents-public-data.patents.publications dataset on Google BigQuery.
Data Coverage
Complete US patent database from 1976 to present, updated weekly
Data Quality
Authoritative government source with verified accuracy
Public Domain
All patent information is publicly available government data
BigQuery Source
Powered by Google's official USPTO dataset infrastructure
Technical Details
Our API processes data from the patents-public-data.patents.publications table, which contains the complete text of US patent applications and grants published by the USPTO. This is the same dataset used by researchers, law firms, and patent analytics companies worldwide.