Patents

9 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Patents

6. Patents

The costs of acquiring or processing patents are capitalized at cost. These amounts are being amortized using the straight-line method over the estimated useful lives of the underlying assets, which is approximately 17 years. Patents totaled $745,777 and $719,136 at March 31, 2018 and June 30, 2017, respectively. Amortization expense for the nine months ended March 31, 2018 and 2017 was $93,997 and $81,000, respectively. The following is a schedule of estimated future patent amortization expenses by fiscal year as of March 31, 2018:

2018	$	32,202
2019		119,318
2020		94,839
2021		88,668
2022		58,368
Thereafter		352,382
	$	745,777