Intangible Assets

12 Months Ended

Sep. 30, 2012

Intangible Assets

Note 11 — Intangible Assets

Other intangible assets at September 30 consisted of:

	2012				2011
	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Amortized intangible assets
Core and developed technology	$	856,585	$	344,911	$	685,191	$	304,292
Product rights		163,465		12,232		152,140		1,268
Patents, trademarks, and other		325,998		240,036		309,337		230,542
	$	1,346,048	$	597,179	$	1,146,668	$	536,102
Unamortized intangible assets
Acquired in-process research and development	$	61,138			$	185,300
Trademarks		2,677				2,669
	$	63,815			$	187,969

Intangible amortization expense was $71,437, $53,713 and $46,964 in 2012, 2011 and 2010, respectively. The estimated aggregate amortization expense for the fiscal years ending September 30, 2013 to 2017 are as follows: 2013 — $77,004; 2014 — $77,206; 2015 — $76,029; 2016 — $72,059; 2017 — $69,813.