Intangible and Other Assets, Net

3 Months Ended

Mar. 31, 2012

Intangible and Other Assets, Net

4. Intangible and Other Assets, Net

Intangible and other assets, net, were comprised of the following at March 31, 2012 and December 31, 2011:

In thousands	March 31, 2012			December 31, 2011
Capitalized patent and license costs	$	6,139		$	6,799
Purchased technology		5,901			5,901
		12,040			12,700
Less accumulated amortization		(6,476	)		(6,957	)
		5,564			5,743
Other assets		63			42
	$	5,627		$	5,785

Amortization expense for intangible assets amounted to $169,000 and $214,000 for the three-month periods ended March 31, 2012 and 2011, respectively. The weighted average amortization period for intangible assets was 14.3 years in 2012 and 14.8 years in 2011.