Note 5 - Patents and Trademarks, Net

12 Months Ended

Aug. 31, 2018

Notes to Financial Statements

Intangible Assets Disclosure [Text Block]

5.

       PATENTS AND TRADEMARKS, NET

Patents and trademarks, net consisted of the following:

	August 31, 2018			August 31, 2017
Patents and trademarks	$	2,824,440		$	2,737,959
Less accumulated amortization		(1,668,183	)		(1,415,870	)
	$	1,156,257		$	1,322,089

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

$252,313

and

$119,033

for the years ended

August 31, 2018

and

2017,

respectively. Amortization expense is estimated to approximate

$260,000

in each of the next

five

fiscal years.