Patents & Trademarks
- Patent Full-Text and Full-Page Image Databases - U.S. Patent and Trademark Office
- www.uspto.gov/patft
- Patent Searching Tutorial - Science and Enginering Library, Univestiy of California, San Diego
- scilib.ucsd.edu/howto/guides/patsearch
- Trademark Electronic Search System (Tess) - US Patent and Trademark Office
- tess2.uspto.gov/bin/gate.exe?f=login&p_lang=english&p_d=trmk
- United States Patent and Trademark Office
- www.uspto.gov