6. PATENTS (Tables)

12 Months Ended

Dec. 31, 2013

Patents Tables

Patents

	2013 Cost		Accumulated Amortization		2013 Net
Patents	$	249,284	$	80,416	$	168,868

	2012 Cost		Accumulated Amortization		2012 Net
Patents	$	266,451	$	65,939	$	200,512

Estimated depreciation expense

Estimated depreciation expense over the next five years is as follows:

2014	$	19,051
2015		19,051
2016		19,051
2017		19,051
2018		19,051