PATENT COSTS (Tables)

9 Months Ended

Sep. 30, 2018

For the nine months ended September 30, 2018, we increased our capitalized patent costs based on reports provided to us by Endo. Patent costs may be creditable against future royalty revenues. For each period presented below, net patent costs consisted of:

	September 30, 2018			December 31, 2017
Patents		1,020,416		$	925,016
Accumulated amortization		(580,524	)		(527,023	)
	$	439,892		$	397,993

Estimated Aggregate Future Amortization Expense

The estimated aggregate amortization expense for the remaining three months of 2018 and each of the years below is approximately as follows:

October 1, 2018 - December 31, 2018	$	19,400
2019		72,700
2020		55,800
2021		38,900
2022		38,900
Thereafter		214,200