v3.19.2
Intangible Assets (Details) - USD ($)
6 Months Ended 12 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
Patents and trade secrets, net      
Cost $ 697,955   $ 697,955
Accumulated Amortization (528,281)   (504,042)
Net intangible assets 169,674   193,913
Beginning balance for total intangible assets, net 193,913 $ 261,849 261,849
Amortization expense (24,239) $ (23,757) (67,936)
Intangible assets, net $ 169,674   $ 193,913