@book{218257,
	title = {Issued Patents (PatFT)},
	publisher = {U.S. Patent and Trademark Office},
	year = {[1970]-},
	address = {Alexandria,VA},
	note = {Title from home page last updated Apr. 10, 2006 (viewed Apr. 21,2006).},
	url = {http://purl.access.gpo.gov/GPO/LPS19940}
}