5. PATENTS

12 Months Ended

Sep. 30, 2012

Accounting Policies [Abstract]

5. PATENTS

During the years ended September 30, 2012, 2011 and 2010, the Company recorded patent impairment charges of $44,921, $9,016, and $13,877, 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, 2012, 2011 and 2010 totaled $86,297, $84,142, and $78,488, respectively. The total estimated future amortization is as follows:

Year ending September 30,
2013	$                  74,257
2014	32,959
2015	32,959
2016	32,959
2017	32,960
Thereafter	178,184
	$                384,278