v3.19.1

Intangible Assets (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Patents and/or software licenses, net |  |
Cost | $ 697,955 | $ 697,955
Amortization | (504,042) | (436,106)
Net intangible assets | 193,913 | 261,849
Beginning balance for total intangible assets | 261,849 | 309,361
Amortization | (67,936) | (47,512)
Intangible assets | $ 193,913 | $ 261,849

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