Google Patents Scraper — Claims, Citations & Legal Status

Paste a list of patent numbers and get one clean record per patent from Google Patents: title, abstract, legal status and expiry date, assignee, CPC codes, every claim (with independent claims flagged), citations in both directions and litigation count. Works for any country Google Patents covers, with English translations of non-English patents. Export to JSON, CSV, Excel or Google Sheets.

Why this patent scraper?

• Any number format. US10000000B2, US 10,000,000 B2, US10000000 (no kind code), EP3000000A1, WO2020000001A1 or a Google Patents URL. Duplicates are removed.
• Claims you can analyse. Every claim as text, numbered, with independent: true/false, plus counts of all and independent claims. It also works for machine-translated claims, where Google's markup doesn't link dependent claims.
• Legal status in one field. legalStatus (Active, Granted, Ceased, Withdrawn…), expirationDate and grantDate without digging through the event timeline.
• Citations both ways. Patents it cites and patents citing it, each with publication number, dates, assignee, title and whether the examiner cited it, plus the family-level versions. Counts are always included, and the lists are capped by a setting you choose.
• Litigation flag. litigationCount counts the US court cases Google Patents lists for the patent.
• English or original. Get Google's English translation of Japanese, Korean, Chinese, German and other patents (translatedFrom tells you the source language), or the original text as filed.
• You only pay for patents found. Numbers that don't exist are logged and not charged.

Input

Field	What it does	Default
Patent numbers or URLs	The patents to look up	(required)
Language	English or Original language	English
Include claims	Full claim text	on
Include citation lists	Cited and citing patents	on
Max citations per list	Caps each citation list	100
Include full description	The whole specification text (long)	off
Include legal events	Patent-office events: date, code, title	off

Output example

{
  "input": "US10000000B2",
  "publicationNumber": "US10000000B2",
  "title": "Coherent LADAR using intra-pixel quadrature detection",
  "url": "https://patents.google.com/patent/US10000000B2/en",
  "countryCode": "US",
  "kindCode": "B2",
  "abstract": "A frequency modulated (coherent) laser detection and ranging system includes…",
  "translatedFrom": null,
  "legalStatus": "Active",
  "expirationDate": "2036-05-13",
  "priorityDate": "2015-03-10",
  "filingDate": "2015-03-10",
  "publicationDate": "2018-06-19",
  "grantDate": "2018-06-19",
  "applicationNumber": "US14/643,719",
  "assignee": "Raytheon Co",
  "familyId": "55456961",
  "cpcCodes": [{ "code": "G01S7/4863", "description": "Detector arrays, e.g. charge-transfer gates", "isFirst": true }],
  "claimsCount": 20,
  "independentClaimsCount": 3,
  "litigationCount": 5,
  "citationsCount": 5,
  "citedByCount": 22,
  "pdfUrl": "https://patentimages.storage.googleapis.com/c0/d5/f7/86ad5b42759506/US10000000.pdf",
  "claims": [{ "number": 1, "text": "1. A laser detection and ranging (LADAR) system, comprising: …", "independent": true }],
  "citedBy": [{ "publicationNumber": "US10845468B2", "publicationDate": "2020-11-24", "assignee": "Raytheon Company", "title": "Coherent LADAR using intra-pixel quadrature detection", "examinerCited": true }]
}

The output also has events (the timeline: filing, priority, publication, grant, reassignment, litigation, expiry), assigneesOriginal / assigneesCurrent, priorArtKeywords, and family citation lists.

Use cases

• Portfolio reviews: status, expiry and claim counts for a list of patents in one spreadsheet
• Prior-art and citation analysis: who cites a patent, and what it cites
• Competitor monitoring: a company's patents with CPC codes and current status
• Licensing and litigation research: which patents have US court cases
• Data pipelines and AI: clean claim text and abstracts as input for search or LLM analysis

FAQ

Can I search by keyword or company? Not in this version. It looks up patents by number. Google Patents' own search page lets you find numbers to paste in, and you can export result lists from it as CSV.

Are inventor names included? No. The output covers the patent and its owners (assignees), not the people named as inventors. When a cited or citing patent was filed by a private person rather than a company, its assignee is left empty.

How accurate are translations? They're Google Patents' machine translations, the same text you see on the site. Use Original language for the text as filed.

Why is assigneesCurrent empty for some patents? Some patent offices don't report changes of ownership. assignee falls back to the original applicant.

Is it legal? It reads publicly available patent records from Google Patents' individual patent pages.

Something broke? Open an issue on the Issues tab and it will be fixed quickly.