Patents

World Patents & Applications

Thousands of U.S., European, Japanese and other patents and applications from all over the world - FREE. You can only print 1 page at a time.

U.S. Patent & Trademark Office

ALL U.S. Patents, full-text and graphics, back to 1790 - FREE. You must install a special TIFF viewer (available on the Patent Web pages) to view and print. You can only print 1 page at a time from this site

U.S. Patent FetcherTM

If you have a U.S. patent number it can be converted for FREE into one complete PDF file here. (Patent Fetcher may limit your downloads to 5 per day before labeling them.). Pat2PDF now charges a fee except for patents issued prior to 1912 (US 1,000,000 or lower).

Dialog@AFRL Patents Search

Citations and abstracts to over 30 million patents. Password required. Registered library customers should contact the Reference Desk at 255-5511 x4238.

MicroPatent Materials Patents

Click on "Advanced Search." This C.S.A. database is provided by the AFRL Library and covers aerospace materials, high performance alloys, metal matrix composites, polymer matrix composites, ceramic matrix composites, steels, and nonferrous metals. AFRL only, IP Controlled site.

Wright State Patent Information

Wright State University has the complete set of U.S. Patents

U.S. Copyright Office

General information and forms