U.S. Patent & Trademark Office

Designated as Iowa’s Patent and Trademark Depository Library, the State Library receives and houses copies of patent and trademark material as well as three databases from the United States Patent and Trademark Office (USPTO). The obligations of this cooperation with the USPTO include making this collection freely available to the public, assisting the public in efficient use of the collection, and protecting the integrity of the collection. Both patents and trademarks are a rich resource for small businesses, research and development firms, university and government laboratories, independent inventors, and entrepreneurs.

The link address is: http://www.uspto.gov