Acquisition of patents (Tables)

12 Months Ended

May 31, 2014

Intangible Assets Activity

The following presents intangible assets activity:

	May 31, 2014			May 31, 2013
Gross carrying amounts	$	3,500,000		$	3,500,000
Accumulated amortization		(568,750	)		(218,750	)
Total amortizable intangible assets, net		2,931,250			3,281,250
Patents currently not amortized		35,989			35,989
Carrying value of intangibles, net	$	2,967,239		$	3,317,239