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Note F - Intangible Assets

12 Months Ended

Dec. 31, 2014

Disclosure Text Block [Abstract]

Intangible Assets Disclosure [Text Block]

NOTE F—INTANGIBLE ASSETS

Intangible assets consisted of the following as of December 31:

		2014												2013
		Gross Carrying Amount				Accumulated Amortization				Net Carrying Amount				Gross Carrying Amount				Accumulated Amortization				Net Carrying Amount

Patents and patents pending		$	287,248			$	(125,904	)		$	161,344			$	287,248			$	(112,298	)		$	174,950

Total		$	287,248			$	(125,904	)		$	161,344			$	287,248			$	(112,298	)		$	174,950

Aggregate amortization expense for 2014 and 2013 was $13,606 and $20,961 respectively. The estimated aggregate amortization expense of intangible assets for the years following December 31, 2014 is approximately $14,000 per year for 2015 through 2019, and approximately $91,000 thereafter.