PATENT COSTS (Tables)

6 Months Ended

Jun. 30, 2017

PATENT COSTS [Abstract]

Net Patent Costs

For each period presented below, net patent costs consisted of:

	June 30, 2017			December 31, 2016
Patents	$	720,601		$	720,601
Accumulated amortization		(482,571	)		(462,246	)
	$	238,030		$	258,355

Estimated Aggregate Future Amortization Expense

The estimated aggregate amortization expense for the remaining six months of 2017 and each of the years below is approximately as follows:

July 1, 2017-December 31, 2017	$	20,400
2018		40,600
2019		40,600
2020		28,600
2021		16,600
Thereafter		91,200