Intangibles and Other Assets

12 Months Ended

Dec. 31, 2012

Intangibles and Other Assets [Abstract]

Intangibles and Other Assets

6.  Intangibles and Other Assets

	December 31,
	2012			2011
	(In thousands)
Patents and trademarks	$	26,206		$	23,617
Other assets		192			204
Gross intangibles and other assets		26,398			23,821
Accumulated amortization of patents and trademarks		(10,673	)		(9,768	)
Intangibles and other assets, net	$	15,725		$	14,053

The Company amortizes its intangible assets related to patents and trademarks, over their estimated useful lives, generally 10 years from the date of issuance of the patents and trademarks. Amortization of intangibles excluding impairments or abandonments was as follows:

	Year ended December 31,
	2012		2011		2010
	(In thousands)
Amortization of Intangibles — excluding impairments or abandonments	$	1,064	$	979	$	810

The table below includes estimated remaining annual amortization expense for issued patents and trademarks as of December 31, 2012.

	Estimated Amortization Expense
	(In thousands)
2013	$	1,032
2014		1,006
2015		902
2016		821
2017		695
Thereafter		1,807
Total	$	6,263

Patents in process included in patents and trademarks were as follows:

	December 31,
	2012		2011
	(In thousands)
Patents in process	$	9,270	$	8,448

Upon issuance, in process patents will be amortized over their estimated useful lives, generally 10 years.