U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

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In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.

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PatentStorm offers full-text U.S. patents and patent applications from the U.S. Patent Office, providing advanced search capabilities and full image retrieval in handy PDF format. Everything we offer is free.

Whether you are an inventor, a patent attorney, a patent agent or just curious about how things work, this site is for you. Our database contains issued patents (including utility, design and plant patents) back to 1976, and yet-to-be approved patent applications back to 2005. Our content is updated weekly - at the same time the U.S. Patent Office updates theirs.

PatentStorm is continually updating our features and functionality. If you have any ideas or comments, please write us.

PatentStorm, based in Washington DC, is a sister company of Storming Media, which provides access to unclassified Pentagon reports, and LegiStorm, which brings transparency to the operations of the U.S. Congress.

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