Patents

6 Months Ended

Jun. 30, 2011

Patents [Abstract]

Patents

7.  Patents

Patents consisted of the following:

	June 30, 2011			December 31, 2010
Patents	$	2,839,000		$	2,839,000
Accumulated amortization		(2,839,000	)		(2,799,700	)
	$	—		$	39,300

Patent amortization, which aggregated $0 and $118,100 during the three-month periods ended June 30, 2011 and 2010, respectively, and $39,300 and $236,200 during the six-month periods ended June 30, 2011 and 2010, respectively, is a component of general and administrative expenses.