Sprint - Nextel 2011 Annual Report Download - page 122

Table of Contents
CLEARWIRE CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - (Continued)
Other intangible assets as of December 31, 2011 and 2010 consisted of the following (in thousands):
As of December 31, 2011, the future amortization of other intangible assets is expected to be as follows (in thousands):
We evaluate all of our patent renewals on a case by case basis, based on renewal costs.
F-55
7. Other Intangible Assets
December 31, 2011 December 31, 2010
Useful lives
Gross
Carrying
Value Accumulated
Amortization Net Carrying
Value
Gross
Carrying
Value Accumulated
Amortization Net Carrying
Value
Subscriber relationships 4 — 7 years $ 108,275 $ (70,894) $ 37,381 $ 108,275 $ (51,882) $ 56,393
Trade names and trademarks 5 years 3,804 (2,346) 1,458 3,804 (1,585) 2,219
Patents and other 10 years 3,228 (1,217) 2,011 3,166 (894) 2,272
Total other intangibles $ 115,307 $ (74,457) $ 40,850 $ 115,245 $ (54,361) $ 60,884
2012 $ 16,229
2013 12,299
2014 7,734
2015 3,867
2016 323
Thereafter 398
Total $ 40,850
Year Ended December 31,
2011 2010 2009
Supplemental Information (in thousands):
Amortization expense $ 20,096 $ 23,933 $ 27,870