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Patents
6 Months Ended
Jun. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]  
Patents
3. Patents
 
Patent intangible assets consisted of the following at June 30, 2016:
 
 
 
Weighted
Average
Useful Life
 
Gross Carrying
Amount
 
Accumulated
Amortization
 
Net Carrying
Amount
 
Amortizable intangible assets:
 
 
 
 
 
 
 
 
 
 
 
 
Patents
 
6.40 years
 
$
11,893,745
 
$
(3,979,313)
 
$
7,914,432
 
Total patent intangible assets
 
 
 
$
11,893,745
 
$
(3,979,313)
 
$
7,914,432
 
 
The Company expects its amortization expenses to be approximately $1,510,977 per year for each of the next four years, $1,481,270 in 2020, then declining annual amounts through 2023.