- The United States Patent and Trademark Office, for all information pending and issued U.S. concerning patents and trademarks www.uspto.gov
- General Information About Patents http://www.uspto.gov/web/offices/pac/doc/general/index.html
- World Intellectual Property Organization http://www.wipo.int/portal/index.html.en
- Patent Offices of the World http://members.pcug.org.au/~arhen/
- European Patent Office Search http://ep.espacenet.com/?locale=EN-ep
- Japan Patent Office (JPO) http://www.jpo.go.jp/
- Google Patents http://www.google.com/patents
- The U.S. Copyright Office www.loc.gov/copyright/
- The Internet Corp. for Assigned Names & Numbers www.icann.org