Patents

12 Months Ended

Jul. 31, 2016

Accounting Policies [Abstract]

Patents

Note 4 - Patents:

The costs and accumulated amortization of patents are summarized as follows:

	July 31,
	2016		2015
Patents	$	—	$	4,705,715
Less: Accumulated amortization		—		3,275,699
Patents, net	$	—	$	1,430,016
Weighted average life		0 years		6.6 years

Amortization expense amounted to $281,894 and $378,954 for the years ended July 31, 2016 and 2015, respectively. No amortization expense is expected for the years ended July 31, 2017 through 2022. During the year ended July 31, 2016, the Company wrote off patents with a net book value of $1,165,864 as the patents had been abandoned or were no longer being used. During the year ended July 31, 2015, the Company wrote off patents with a net book value of $320,160 as the patents had been abandoned or were no longer being used.