U.S. Patent Database . Database of U.S. patents, full-text, from 1790 to the present. A tiff viewer plug-in is required to view images. A service of the U.S. Patent and Trademark Office. IBM Patent Server .
Images are available for patents published during the last ten years.
Search front pages of EP, PCT, Japanese, and other worldwide patents. A service of the Patent Office of the United Kingdom. U.S. Trademark Database. Search for U.S. Patent and Trademark Office records of registered and pending trademarks. Includes color drawings of symbols and designs that are trademarked.