Government & Legal

USPTO Scraper

Extract patent applications, trademark filings, examiner data, and prosecution history from USPTO. Powered by spider-browser .

Get Started Documentation

uspto.gov target

99.5% success rate

~4ms latency

Quick Start

Extract data in minutes

uspto-scraper.ts

import { SpiderBrowser } from "spider-browser";

const spider = new SpiderBrowser({
  apiKey: process.env.SPIDER_API_KEY!,
});

await spider.connect();
const page = spider.page!;
await page.goto("https://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.htm&r=0&p=1&f=S&l=50&Query=TTL%2Fartificial+intelligence&d=PTXT");
await page.content();

const data = await page.evaluate(`(() => {
  const patents = [];
  document.querySelectorAll("table tr").forEach(el => {
    const number = el.querySelector("td:nth-child(2) a")?.textContent?.trim();
    const title = el.querySelector("td:nth-child(4)")?.textContent?.trim();
    if (number && title) patents.push({ number, title });
  });
  return JSON.stringify({ total: patents.length, patents: patents.slice(0, 10) });
})()`);

console.log(JSON.parse(data));
await spider.close();

✓ ready to run | spider-browser | TypeScript

Fetch API

Structured data endpoint

Extract structured JSON from uspto.gov with a single POST request. AI-configured selectors, cached for fast repeat calls.

POST /fetch/uspto.gov/

Patent numberTitleInventorAssigneeFiling dateAbstract

Try it Fetch API Docs

curl

curl -X POST https://api.spider.cloud/fetch/uspto.gov/ \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"return_format": "json"}'

Python

import requests

resp = requests.post(
    "https://api.spider.cloud/fetch/uspto.gov/",
    headers={
        "Authorization": "Bearer YOUR_API_KEY",
        "Content-Type": "application/json",
    },
    json={"return_format": "json"},
)
print(resp.json())

Node.js

const resp = await fetch("https://api.spider.cloud/fetch/uspto.gov/", {
  method: "POST",
  headers: {
    "Authorization": "Bearer YOUR_API_KEY",
    "Content-Type": "application/json",
  },
  body: JSON.stringify({ return_format: "json" }),
});
const data = await resp.json();
console.log(data);

Extraction