INTANGIBLE ASSETS, net

12 Months Ended

May 31, 2014

Disclosure Text Block [Abstract]

Intangible Assets Disclosure [Text Block]

3.    INTANGIBLE ASSETS, net 

Intangible assets, net of accumulated amortization, consist of the following at May 31: 

	2014		2013
Patents and licenses	$	491,670	$	245,174
Less accumulated amortization		(109,489)		(79,974)
Intangible Assets, Net	$	382,181	$	165,200

Expected amortization of intangible assets for the years ending May 31: 

2015	$	72,269
2016		72,269
2017		72,195
2018		66,421
2019		63,721
Thereafter		35,306
Total	$	382,181