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Patents
12 Months Ended
Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]  
Patents

6. Patents

Included in other assets at December 31, 2015 and 2014 are capitalized patent costs as follows:

               
    2014   2014  
               
Patent costs   $ 372,411   $ 332,406  
Less accumulated amortization     (33,512 )   (20,390 )
    $ 338,899   $ 312,016  

 

Amortization expense for the year ended December 31, 2015 and 2014 amounted to $13,122 and $11,430, respectively.