Intangible assets

9 Months Ended

Sep. 30, 2011

4. Intangible assets

Intangible assets consisted of the following at September 30, 2011 and December 31, 2010:


			September 30, 2011						December 31, 2010
			Gross				Net		Gross				Net
			Carrying		Accumulated		Carrying		Carrying		Accumulated		Carrying
	Useful Life		Amount		Amortization		Amount		Amount		Amortization		Amount
Amortized intangible assets:
Domain names	5 Years		$	168,428	$	93,318	$	75,110	$	237,911	$	66,006	$	171,905
Issued patents		4 to 15 Years		1,463,821		320,767		1,143,054		1,040,148		264,716		775,432
Issued trademarks		9 to 11 Years		263,742		57,295		206,447		207,721		37,659		170,062
Non compete agreements		5 to 7 Years		150,000		145,000		5,000		150,000		130,000		20,000

				2,045,991		616,380		1,429,611		1,635,780		498,381		1,137,399


Unamortized intangible assets:
TASER Trademark				900,000				900,000		900,000				900,000
Patents and trademarks pending				854,333				854,333		1,053,477				1,053,477

				1,754,333				1,754,333		1,953,477				1,953,477


			$	3,800,324	$	616,380	$	3,183,944	$	3,589,257	$	498,381	$	3,090,876

Amortization expense for the three and nine months ended September 30, 2011, was approximately $38,000 and $118,000, respectively. Amortization expense for the three and nine months ended September 30, 2010, was approximately $28,000 and $76,000, respectively. Estimated amortization expense of intangible assets for the remaining three months of 2011, the next five years ended December 31, and thereafter is as follows:


2011 (remainder of year)	$	24,592
2012		106,448
2013		106,451
2014		133,614
2015		124,862
2016		111,991
Thereafter		821,653

	$	1,429,611