Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2013

Intangible Assets

Intangible assets consisted of the following:

		December31, 2012		March31, 2013
				(Unaudited)
	Averagelife (years)	Grosscarrying amount	Accumulated amortization	Grosscarrying amount	Accumulated amortization
Patents	10	$145,995	$61,302	$145,995	$66,991
		$145,995	$61,302	$145,995	$66,991

Future Amortization Expense

Future amortization expense associated with these intangible assets is as follow:

Nine months ending December31, 2013	$17,065
Year ending December31, 2014	22,754
Year ending December31, 2015	22,754
Year ending December31, 2016	16,431
	$79,004