Patents (Details Narrative) (USD $)	12 Months Ended			213 Months Ended
	Jul. 31, 2013	Jul. 31, 2012	Jul. 31, 2011	Jul. 31, 2013	Jul. 31, 2018	Jul. 31, 2017	Jul. 31, 2016	Jul. 31, 2015	Jul. 31, 2014
Accounting Policies [Abstract]
Amortization expense, patents	$ 391,777	$ 441,087	$ 430,650	$ 391,777
Amortization expense, patents, next year									274,000
Amortization expense, patents, year two								274,000
Amortization expense, patents, year three							274,000
Amortization expense, patents, year four						274,000
Amortization expense, patents, year five					274,000
Write-off of abandoned patents		$ 440,780		$ 1,353,976