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PATENT COSTS (Tables)
 6 Months Ended
Jun. 30, 2014
PATENT COSTS [Abstract]  
Net Patent Costs
For each period presented below net patent costs consisted of:

 
 
June 30,
  
December 31,
 
 
 
2014
  
2013
 
Patents
 
$
623,828
  
$
472,375
 
Accumulated Amortization
  
(324,117
)
  
(256,376
)
 
 
$
299,711
  
$
215,999
 
Estimated Aggregate Future Amortization Expense
The amortization expense for patents for the six months ended June 30, 2014 was approximately $68,000. In the comparable period of 2013, the amortization expense for patents was approximately $32,000. The estimated aggregate amortization expense for each of the next five years is approximately as follows:

2015                             $ 38,000
2016                                32,000
2017                                32,000
2018                                32,000
2019                                32,000