Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2015
Intangible Assets  
Summary of the components of intangible asset balances

 

 

As of December 31,

 

 

 

2015

 

2014

 

Patents — in use

 

$
168,383

 

$
238,548

 

Patents — in process

 
47,474

 
31,358

 

Internally developed software

 
148,967

 
148,967

 

 

 

 

 

 

 

 

 
364,824

 
418,873

 

Accumulated amortization

 
(189,311

)
(168,037

)

 

 

 

 

 

 

Total

 

$
175,513

 

$
250,836

 

 

 

 

 

 

 

 

 

 

Schedule of expected annual amortization expense related to intangible assets

2016

 

$
18,016 

 

2017

 

$
10,538 

 

2018

 

$
10,538 

 

2019

 

$
10,538 

 

2020

 

$
10,538