All patents
Search 122.8 million patents worldwide
Every patent and published application in Google's public patent data, from more than 100 patent offices: check what already exists before you build, buy or file. Patents that may still be in force are marked; for inventions you can use freely, see Free to use.
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Records come from Google Patents Public Data, used under CC BY 4.0, and are refreshed from time to time. "Past its term" means filed long enough ago that no patent from it can still be in force; every other status is as published, so confirm it with the official register before relying on it.