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Registration of securities issued in business combination transactions

INTANGIBLE ASSETS

v2.4.0.6
INTANGIBLE ASSETS
12 Months Ended
Dec. 31, 2011
INTANGIBLE ASSETS Ìý
INTANGIBLE ASSETS

8. INTANGIBLE ASSETS

ÌýÌýÌýÌýÌýÌýÌýÌýThe gross carrying amount and accumulated amortization of intangible assets were as follows (dollars in millions):

Ìý
Ìý DecemberÌý31, 2011 Ìý DecemberÌý31, 2010 Ìý
Ìý
Ìý Carrying
Amount
Ìý Accumulated
Amortization
Ìý Net Ìý Carrying
Amount
Ìý Accumulated
Amortization
Ìý Net Ìý

Patents, trademarks and technology

Ìý $ 363 Ìý $ 307 Ìý $ 56 Ìý $ 363 Ìý $ 286 Ìý $ 77 Ìý

Licenses and other agreements

Ìý Ìý 39 Ìý Ìý 14 Ìý Ìý 25 Ìý Ìý 25 Ìý Ìý 12 Ìý Ìý 13 Ìý

Non-compete agreements

Ìý Ìý 2 Ìý Ìý 2 Ìý Ìý - Ìý Ìý 2 Ìý Ìý 2 Ìý Ìý - Ìý

Other intangibles

Ìý Ìý 48 Ìý Ìý 36 Ìý Ìý 12 Ìý Ìý 77 Ìý Ìý 60 Ìý Ìý 17 Ìý
Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý

Total

Ìý $ 452 Ìý $ 359 Ìý $ 93 Ìý $ 467 Ìý $ 360 Ìý $ 107 Ìý
Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý

ÌýÌýÌýÌýÌýÌýÌýÌýAmortization expense was $30Ìýmillion, $30Ìýmillion and $35Ìýmillion for the years ended DecemberÌý31, 2011, 2010 and 2009, respectively.

ÌýÌýÌýÌýÌýÌýÌýÌýOur estimated future amortization expense for intangible assets over the next five years is as follows (dollars in millions):

Year ending DecemberÌý31
Ìý Ìý
Ìý

2012

Ìý $ 24 Ìý

2013

Ìý Ìý 20 Ìý

2014

Ìý Ìý 13 Ìý

2015

Ìý Ìý 5 Ìý

2016

Ìý Ìý 4 Ìý