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Intangible Assets (Tables) | 6 Months Ended
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Jun. 30, 2019
Intangible Assets |
Summary of the components of intangible asset balances |
|  | June 30, |  | December 31,
|  | 2019 |  | 2018
|  | (unaudited) |  |  |
Patents — in use |  | $ | 304,270 |  | $ | 304,270
Patents — in process |  |  | 87,053 |  |  | 73,164
Internally developed software — in use |  |  | 867,569 |  |  | 867,569
Internally developed software — in process |  |  | 34,233 |  |  | 13,723
Trademarks |  |  | 23,017 |  |  | 23,017
|  |  | 1,316,142 |  |  | 1,281,743
Accumulated amortization |  |  | (494,205) |  |  | (449,224)
Total |  | $ | 821,937 |  | $ | 832,519
Schedule of expected annual amortization expense related to intangible assets (excludes in process intangible assets) |
Six months ending December 31, 2019 |  | $ | 44,982
2020 |  |  | 89,963
2021 |  |  | 89,963
2022 |  |  | 89,392
2023 |  |  | 88,740
2024 |  |  | 88,439

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