Intangible Assets

3 Months Ended

Mar. 31, 2012

Intangible Assets

Intangible Assets

2.Intangible Assets

Intangible assets consist of the following:

	March 31, 2012			December 31, 2011
Patents	$	4,929,016		$	4,750,888
Accumulated amortization	(2,849,717		)	(2,756,169		)
Patents, net	2,079,299			1,994,719
Other intangibles	1,900,906			1,852,703
Accumulated amortization	(1,416,350		)	(1,329,381		)
Other intangibles, net	484,556			523,322
Intangible assets, net	$	2,563,855		$	2,518,041

Amortization expense associated with our intangibles was $180,517 and $170,448 in the three months ended March 31, 2012 and 2011, respectively.  Amortization expense is included in general and administrative expenses in the accompanying condensed consolidated statements of operations.