Free Google Patents search

Search patents and applications worldwide by keyword: number, title, assignee, inventor, priority, filing and publication dates, and a link to the PDF.

Try . Free, no account needed.

Need this at scale?

The same lookup is one API call at 1 credit / request (one credit is $0.0003 to $0.001 depending on volume), with failed requests free.

cURL

curl "https://api.gridlode.com/v1/search/google/patents?q=solar%20panel%20cleaning%20robot" \
  -H "Authorization: Bearer $GRIDLODE_KEY"

Get 1,000 free credits Google Patents Search API docs

FAQ

Which patent offices are covered?

Everything Google Patents indexes: the US, Europe, China, Japan, Korea, WIPO and more than 100 other offices.

How many results can I get?

The free tool shows the first 10. The API returns up to 100 per page with filters for assignee, inventor, dates, status and type, at 1 credit per request.

Can I get the full patent?

Yes. The patent details API returns claims, classifications, citations, family members and legal events for one patent number.