U.S. Patent Database

Also known as: US Patents | USPTO

The USPTO's patent databases contain more than 9 million patents issued from 1790 to the present and 3 million published applications from 2001 forward.

Open Access

Print Holdings

The Official Gazette of the U.S. Patent and Trademark Office (1872-1994) is located in Stauffer Library Documents, call # US1 DE O23.

Date Coverage

  • 1790 - present (updated weekly)

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