PATENT COSTS (Tables)

6 Months Ended

Jun. 30, 2016

PATENT COSTS [Abstract]

Net Patent Costs

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

	June 30, 2016			December 31, 2015
Patents	$	708,474		$	697,260
Accumulated amortization		(441,374	)		(422,054	)
	$	267,100		$	275,206

Estimated Aggregate Future Amortization Expense

The estimated aggregate amortization expense for the remaining six months of 2016 and each of the years below is approximately as follows:

July 1, 2016 to December 31, 2016	$	19,500
2017		38,700
2018		38,700
2019		38,700
2020		27,400
Thereafter	$	104,100