v3.19.3

Intangible Assets (Details) - USD ($) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Dec. 31, 2018
Patents and trade secrets, net |  |  |
Cost | $ 697,955 |  | $ 697,955
Accumulated Amortization | (540,401) |  | (504,042)
Net intangible assets | 157,554 |  | 193,913
Beginning balance for total intangible assets, net | 193,913 | $ 261,849 | 261,849
Amortization expense | (36,359) | $ (35,635) | (67,936)
Intangible assets, net | $ 157,554 |  | $ 193,913

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