Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2013

Intangible Assets [Abstract]

Summary of Intangible Assets

Intangible assets at March 31, 2013 and December 31, 2012 consisted of the following:

	March 31, 2013			December 31, 2012
Patent costs	$	1,154,523		$	1,154,523
Less — Accumulated amortization		(784,255	)		(755,392	)
Total	$	370,268		$	399,131

Patent Costs Amortized on a Straight-Line Basis

Patent costs which are amortized on a straight-line basis over a 10-year life, are scheduled to amortize as follows:

Year ended December 31,
2013 (remaining nine months)		80,403
2014.		94,100
2015.		77,656
Thereafter.		118,109
	$	370,268