The same call, from your code.
The tool makes one call to google.patents. Run the same request from your code, or give it to your agent. The response is JSON with each patent, its assignee, its inventor and its dates.
terminal
Free tool
FreePatent Search
Type a search. The tool returns matching patents from Google Patents with assignee, inventor, dates and a link to each one.
Free. No account. No API key.
How it works.
Type a search
Type the words that describe the invention, as you would say them.
Get the patents
The tool calls google.patents. The API returns the patents that match.
Open or download
Select a title to open the patent on Google Patents. Download CSV saves one row per patent.
What people use it for.
Check prior art
Search your idea in your own words before you file, and read the closest patents first.
See who holds the patents
Each result names its assignee, so you can see which companies hold patents on a technology.
Date a technology
Compare the filing dates to see when work on a technology started.
When you need more.
- Use the APISend a POST request with a Bearer key. Every endpoint returns success, data, creditsUsed and requestId.
- Use MCPAdd https://api.stophy.dev/mcp to Claude, Cursor or Codex. The agent finds an endpoint and calls it.
- Use the SDKInstall the TypeScript or Python client. Call an endpoint by its id, such as youtube.transcript.
- Use the CLICall an endpoint from the terminal. The CLI prints JSON, so you can pipe the result into a script.
Questions and answers.
Yes. The tool calls an endpoint that needs no API key and no card. A free daily limit applies across all tools.
Google Patents. It holds patents and patent applications from many patent offices, the US, European and Chinese offices among them.
The first page, which is 10 patents. Each patent has its publication number, title, a snippet, assignee, inventor and filing date. The download adds the priority date, the publication date and the PDF link.
Not on this page. The tool sends your words as the query. The API takes inventor, assignee, office, language, status, type, a date range and a sort order.
Yes. Send POST /v1/google/patents with query. The response has success, data, creditsUsed and requestId, and data holds a results list with patentId, title, snippet, assignee, inventor, filingDate, patentUrl and pdfUrl for each patent. The endpoint also takes inventor, assignee, office, status, after and before. With an API key, send page for more results.
Get started
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