Intangible Assets

6 Months Ended

Jun. 30, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets

Note 4. Intangible Assets

The components of our intangible assets at June 30, 2015 are summarized below:

Intangible Asset Class	Cost		Accumulated Amortization			Net Carrying Amount		Weighted Average Amortization Period
Patents and licences	$	1,243,612	$	(928,446	)	$	315,166		15 years

Amortization expense was approximately $21,000 in the second quarter of 2015 and expected amortization expense for the year ended December 31, 2015 is approximately $83,000.

The expected future annual amortization expense for each of the next five years based on current balances of our intangible assets is approximately as follows:

For the year ending December 31:
2016	$	75,496
2017	$	54,923
2018	$	27,978
2019	$	27,978
2020	$	26,594