Patents, Trademarks and Copyright Information on patents, trademarks, and copyright concerning Iowa residents.
U.S. Patent and Trademark Office United States Department of Commerce's site on patent and trademark information.
World Intellectual Property Organization Includes detailed FAQs about patents, statistics, and a search feature.
Patents back to 1971 can be searched via LexisNexis Academic. (In LN Academic go to Legal Research and then scroll down the screen to find "Patents"). Authentication with your Hawkeye login is required for off-campus access.