Patents (Tables)

12 Months Ended

Jul. 31, 2014

Accounting Policies [Abstract]

Costs and accumulated amortization of patents

		July 31,
		2014		2013
Patents	$	5,725,908	$	5,657,455
Less: Accumulated Amortization		3,679,547		3,338,039
Patents, Net		2,046,361		2,319,416
Weighted Average Life		7.8 years		8.6 years