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INTANGIBLE AND OTHER ASSETS
9 Months Ended
Jun. 30, 2018
Accounting Policies [Abstract]  
INTANGIBLE AND OTHER ASSETS

6.    INTANGIBLE AND OTHER ASSETS

 

Intangible assets consist of the following as of June 30, 2018 and September 30, 2017:

 

   June 30, 2018  September 30, 2017
Patents  $95,437   $89,473
Websites   14,532    14,532
Brand and Client lists   2,497,472    2,497,472
Trademarks   5,928    5,928
Engineering trade secrets   4,020,269    4,020,269
Software   26,990    26,990
Less: accumulated amortization   (1,343,293)   (750,978)
Intangible assets, net  $5,317,335   $5,903,686

 

Amortization expense for the nine months ended June 30, 2018 and 2017 was $592,315 and $408,823, respectively.