Patent Search: USPTO Patent Records & Changes Feed

Pulls official USPTO daily data and returns clean, flat US trademark records: word mark, serial and registration number, owner, goods and services, class, status and dates, with a what-changed-since-last-run mode. Billed only per delivered record. No API key needed.

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.

WHOIS Lookup: Domain WHOIS via RDAP, Age, Expiry, Registrar

thoob/rdap-domain-lookup

Input a list of domains, get registration data from official IANA RDAP servers (the structured-JSON successor to WHOIS): registrar, key dates, status codes, nameservers, DNSSEC, and abuse contact. Clean fields, no mangled WHOIS text. Billed only per resolved domain.

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.

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.

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.

China (CN) Patent Search — Google Patents Index | NexGenData

nexgendata/cnipa-china-patent-search

Research competitors' Chinese patents: search CN patent publications — CNIPA-filed records as indexed by Google Patents — with abstracts, claims and citations. Not an official CNIPA API. Clean JSON for due diligence, analysts, quants and AI agents.

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.

Trademark Search — USPTO Serial & IP Australia | NexGenData

nexgendata/uspto-trademark-search

Trademark due diligence and brand clearance: look up US trademarks by serial/registration number from the official USPTO TSDR source, and search brand names across the IP Australia register. JSON: mark, owner, status, serial/registration, dates, class, goods/services. No API key. Pay per record.

China CNIPA Patent Scraper

jungle_synthesizer/china-cnipa-patent-scraper

Scrape Chinese patent data from Google Patents. Search by keyword, IPC classification, assignee, or date range. Returns bilingual (Chinese + English) patent records including title, abstract, inventors, assignees, CPC/IPC codes, legal status, and patent family information.