Copyrights & Patents
Understanding Patents v. Copyrights
http://inventblog.com/uspto/explain_patents.html
U.S. Copyright Office
To search records at the U.S. Copyright Office
http://www.copyright.gov/records/
Other Information
http://en.wikipedia.org/wiki/Copyright
http://inventors.about.com/library/inventors/bledison.htm
Patents
http://en.wikipedia.org/wiki/Patent
http://en.wikipedia.org/wiki/US_Patent_Office
U.S. Patent Office