This is a great resource to keep current on your patent awareness. Subscribe to an RSS feed that interests you by technology area or classification and receive e-mail alerts when patents are issued in your field.

Search more than 7 million patents by keyword, patent number, title, inventor, original assignee, current U.S. classification, international classification, patent type/status and date.

This is an extremely useful tool and a way to bypass TIFF images. Download PDFs of ALL patents, regardless of the year.

Patent Lens is a worldwide, open-access, free full-text patent resource. Search and retrieve full-text patents from the United States, Europe, Australia, and the World Intellectual Property Organization (WIPO). The front page is somewhat confusing; clicking on the gear icon next to the search box takes you to the advance search, which is clearer.

Includes up-to-date news on changes to patent law and other trends. Created by famed librarian Michael White.

Great tool for searching international patents.

Website of agency in U.S. Department of Commerce. Provides information on and issues patents and trademark registration.