Patent Search API

Search and retrieve patent information from Google Patents with support for keyword search, inventor/assignee filtering, and detailed patent information retrieval.

POST/v1/patent/*

Patent Search

POST/v1/patent/search

Search Google Patents using keywords with filters for inventor, assignee, country, date range, and patent status.

Parameters

Parameter	Type	Required	Description
`q`	string	Required	Search query keywords
`inventor`	string	Optional	Filter by inventor name
`assignee`	string	Optional	Filter by assignee/company
`country`	string	Optional	Filter by country code
`status`	string	Optional	Patent status filter

Patent Details

POST/v1/patent/details

Retrieve detailed patent information by patent ID, including title, inventors, assignees, dates, claims, and PDF link.

Parameters

Parameter	Type	Required	Description
`patent_id`	string	Required	Patent ID or publication number

Response

{
  "success": true,
  "message": "Patent search completed successfully",
  "data": {
    "organic_results": [
      {
        "title": "Method and system for natural language processing",
        "patent_id": "US11234567B2",
        "inventor": "John Smith",
        "assignee": "Tech Corp",
        "filing_date": "2021-03-15",
        "grant_date": "2023-01-10",
        "abstract": "A method for processing natural language using transformer architecture..."
      }
    ]
  }
}

Examples

import requests

API_KEY = "your_api_key_here"
BASE_URL = "https://api.qinyanai.com"

# Search patents
response = requests.post(
    f"{BASE_URL}/v1/patent/search",
    headers={"Authorization": f"Bearer {API_KEY}"},
    json={
        "q": "transformer neural network",
        "country": "US",
        "assignee": "Google"
    }
)

# Get patent details
response = requests.post(
    f"{BASE_URL}/v1/patent/details",
    headers={"Authorization": f"Bearer {API_KEY}"},
    json={"patent_id": "US11234567B2"}
)