INTANGIBLE ASSETS, net

12 Months Ended

May 31, 2013

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:

		2013		2012
Patents and licenses	$	245,174	$	245,174
Less accumulated amortization		(79,974)		(50,591)
Intangible Assets, Net	$	165,200	$	194,583

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

2014	$ 23,099
2015	23,958
2016	23,958
2017	23,958
2018	18,110
Thereafter	49,417
Total	$162,500