Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2014

Intangible Assets

Schedule of intangible assets

	December 31, 2014			December 31, 2013
License agreements	$	850,859		$	816,300
Patents	79,996			62,553
Less: accumulated amortization	(353,681		)	(308,457		)
Intangible assets, net	$	577,174		$	570,396