USPTO Patent Search — Grants & Applications

USPTO Patent Search — US Prior Art via Google Patents Index

nexgendata/uspto-patent-search

Search US patents (USPTO grants and published applications) for prior art by keyword, assignee or inventor, via the Google Patents index. Not an official USPTO API. Clean JSON with citations, CPC classes and claims.

USPTO Trademark Search — Lookup, Availability & Data

sian.agency/uspto-trademark-scraper

Search and extract USPTO trademark data — keyword search, brand-name availability checks, owner and full-text search, serial-number lookups, class suggestions, and expiring-mark discovery. Seven operations, one clean dataset per run. No API key, no setup.

USPTO API - Patent & Trademark Data

alizarin_refrigerator-owner/uspto-api---patent-trademark-data

USPTO patent data from the USPTO Open Data Portal using your own free USPTO API key (USPTO.gov account plus ID.me). Search applications and granted patents by keyword, assignee, or inventor, or look up one patent. Without a key, live runs return a notice and charge nothing.

USPTO Patent Scraper

devilscrapes/uspto-patents-scraper

Search US issued patents and published applications via Google Patents' public search index — patent number, title, abstract, inventors, assignee, classifications, priority, filing, and grant dates — bulk export to JSON or CSV. Free, no key, no login. Patent search API.

Search and extract United States patent data from the official PatentsView API. Find patents by keyword, inventor name, assignee organization, date range, CPC classification, and patent type.

Google Patents Scraper — Search, Detail, Citations

scrape.badger/google-patents-scraper

Scrape Google Patents at scale: search the full patent corpus by keyword, inventor, assignee, country, language, status, patent type, and filing date, then pull rich document details (abstract, every claim, full description, CPC classifications, backward/forward citations.

China (CN) Patent Search — via Google Patents Index

nexgendata/cnipa-china-patent-search

Search Chinese (CN) patent publications — CNIPA-filed records as indexed by Google Patents — with abstracts, claims and citations. Not an official CNIPA API. Clean JSON for analysts, quants and AI agents.

USPTO Trademark Batch Search API

dev00/uspto-trademark-api

Bulk verify keywords and phrases against the USPTO database to instantly detect LIVE and PENDING trademarks.

USPTO Patent Search

dash_authority/uspto-patent-search

Search US patents via the PatentsView API. Find patents by keyword, assignee organization, inventor, date range, and CPC classification. Ideal for patent attorneys, R&D teams, competitive intelligence, and VC due diligence.

USPTO Trademark Status Checker

sheshinmcfly/uspto-trademark-checker

Check the registration status of US trademarks by serial or registration number via the official USPTO TSDR database. Returns status, owner, filing date, and goods description.