Note 5 - Patents and Trademarks, Net

12 Months Ended

Aug. 31, 2017

Notes to Financial Statements

Intangible Assets Disclosure [Text Block]

5.

PATENTS AND TRADEMARKS, NET

Patents and trademarks, net consisted of the following:

	August 31, 2017			August 31, 2016
Patents and trademarks	$	2,737,959		$	2,575,435
Less accumulated amortization		(1,415,870	)		(1,296,838	)
	$	1,322,089		$	1,278,597

Patent and trademark costs are amortized over

seven

years. Costs incurred related to patents and trademarks are capitalized until filed and approved, at which time the amounts capitalized to date are amortized and any further costs, including maintenance costs, are expensed as incurred. Amortization expense was

$119,033

and

$119,032

for the years ended

August 31, 2017

and

2016,

respectively. Amortization expense is estimated to approximate

$120,000

in each of the next

five

fiscal years.