Patents

6 Months Ended

Dec. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Patents

7. 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, net of accumulated amortization, totaled $787,605 and $779,100 at December 31, 2019 and June 30, 2019, respectively. Amortization expense for the six months ended December 31, 2019 and 2018 was $63,000 and $70,000, respectively. The following is a schedule of estimated future patent amortization expenses by fiscal year as of December 31, 2019:

2020	$	64,146
2021		123,028
2022		81,093
2023		80,002
2024		72,173
Thereafter		367,163
	$	787,605