5. PATENTS

12 Months Ended

Sep. 30, 2014

Accounting Policies [Abstract]

5. PATENTS

5. PATENTS

Patents consisted of the following at September 30:

		2014			2013
Patents	$	1,517,344		$	1,470,047
Accumulated amortization		(1,193,756	)		(1,151,852	)
Net Patents	$	323,588		$	318,195

During the years ended September 30, 2014, 2013 and 2012, the Company recorded patent impairment charges of $1,182, $22,628 and $44,921, respectively, for the net book value of patents abandoned during the year. These amounts are included in general and administrative expenses. Amortization expense for the years ended September 30, 2014, 2013 and 2012 totaled $42,785, $88,207 and $86,297, respectively. The total estimated future amortization is as follows:

Year ending September 30,
2015	$	36,051
2016		36,051
2017		36,051
2018		35,716
2019		34,014
Thereafter		145,705
	$	323,588