Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2015

Intangible Assets

Summary of the components of intangible asset balances

	March 31,  2015			December 31, 2014
	(unaudited)
Patents — in use	$	168,383		$	238,548
Patents — in process	32,158			31,358
Internally developed software	148,967			148,967
	349,508			418,873
Accumulated amortization	(162,824		)	(168,037		)
Total	$	186,684		$	250,836

Schedule of expected annual amortization expense related to intangible assets

Nine months ending December 31, 2015	$	26,489
2016	18,016
2017	10,538
2018	10,538
2019	10,538
2020	10,538