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Intangible Assets, Net
9 Months Ended
Sep. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible Assets, Net
5. Intangible Assets, Net

 

Intangible assets, net consisted of the following at September 30, 2018 and December 31, 2017: 

 

   September 30,   December 31, 
   2018   2017 
   (unaudited)             
   Gross
Carrying
Amount
   Accumulated
Amortization
   Net
Carrying
Amount
   Gross
Carrying
Amount
   Accumulated
Amortization
   Net
Carrying
Amount
 
Patents  $50,000   $(23,125)  $26,875   $50,000   $(21,250)  $28,750 
Trade names, trademarks product names, URLs   1,555,000    (777,104)   777,896    1,555,000    (585,479)   969,521 
Internally developed software   2,720,000    (2,202,697)   517,303    2,720,000    (1,900,696)   819,304 
Subscriber/customer relationships   4,219,000    (2,884,195)   1,334,805    4,219,000    (2,221,882)   1,997,118 
Lead pool   282,000    (282,000)   -    282,000    (176,250)   105,750 
Total intangible assets  $8,826,000   $(6,169,121)  $2,656,879   $8,826,000   $(4,905,557)  $3,920,443 

 

Amortization expense for the three and nine months ended September 30, 2018 was $421,188 and $1,263,564, respectively, as compared to $421,188 and $1,263,563, respectively, for the three and nine months ended September 30, 2017. The estimated aggregate amortization expense for the last quarter of 2018 and each of the next four years and thereafter will be $336,155 in 2018, $1,087,333 in 2019, $592,681 in 2020, $444,167 in 2021 and $196,543 in 2022.