Search more than 11 million patent records from 40 worldwide patent-issuing authorities. These include the US Patent and Trademark Office, European Patent Office, PCT (WO) applications and the Japanese Patent Office.
Includes TIFF images of every patent issued by the United States (1790 forward), as well as searchable HTML full text of all patents since 1976. TIFF images can be assembled into downloadable PDF files using a free patent fetcher.