Intangible Assets

12 Months Ended

Dec. 31, 2015

Intangible Assets [Abstract]

Intangible Assets

Note 7—Intangible Assets

Intangible assets at December 31, 2015 and 2014 consisted of the following:

	2015		2014
Patent costs	$	1,154,523	$	1,154,523
Less — Accumulated amortization		(1,029,497)		(958,758)
Less — Write off related to patents no longer in use		(66,147)		—
Total	$	58,879	$	195,765

Patent amortization expense was $136,900 and $94,100 for the years ended December 31, 2015 and 2014, respectively.

Patent costs which are being amortized on a straight-line basis over a 10-year life, are scheduled to amortize as follows:

Year ended December 31,
2016		33,450
2017		19,117
2018		6,312
	$	58,879