Other Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2013

Other intangible assets are comprised of the following:

		June 30, 2013						December 31, 2012
	Useful Life	Gross Carrying Amount		Accumulated Amortizaton		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortizaton		Net Carrying Amount
Acquired intangibles	5 -10 years	$	2,405,300	$	1,365,917	$	1,039,383	$	2,405,300	$	1,243,865	$	1,161,435
Patent application costs	Varied (1)		1,009,220		311,672		697,548		956,714		265,472		691,242
		$	3,414,520	$	1,677,589	$	1,736,931	$	3,362,014	$	1,509,337	$	1,852,677

(1)- patent rights are amortized over their expected useful life which is generally the legal life of the patent. As of June 30, 2013, the weighted average remaining useful life of these assets in service was approximately 9.8 years.

Schedule of Estimated Future Amortization of Intangible Assets

Approximate expected amortization for each of the five succeeding fiscal years is as follows:

2014	$	314,000
2015	$	314,000
2016	$	227,000
2017	$	189,000
2018	$	176,000