Intangible Asset Acquisition and Cross License Agreement (Tables)

9 Months Ended

12 Months Ended

Apr. 30, 2013

Jul. 31, 2012

Intangible Asset Acquisition and Cross License Agreement

Summary of purchase price allocation for assets acquired that are accounted for as an asset acquisition

Intangible assets - patents	$	2,788,154
Tangible assets - machinery, property and inventory	$	38,000

Intangible assets - patents	$	2,788,154
Tangible assets — machinery, property and inventory	$	38,000