Inogen, Inc. Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2015

The following tables represent the changes in net carrying values of the intangibles as of the respective dates:

March 31, 2015	Average estimated useful lives (in years)	Gross carrying amount		Accumulated amortization		Net carrying amount
Licenses	10	$	185	$	86	$	99
Patents and websites	5		873		756		117
Commercial	2		139		95		44
Total		$	1,197	$	937	$	260


December 31, 2014	Average estimated useful lives (in years)	Gross carrying amount		Accumulated amortization		Net carrying amount
Licenses	10	$	185	$	81	$	104
Patents and websites	5		873		749		124
Commercial	2		128		86		42
Total		$	1,186	$	916	$	270