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Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2021
Intangible Assets |
Schedule of intangible assets, net | Intangible assets, net consisted of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31,
​ |  | 2021 |  | 2020
Patents | ​ | $ | 1,133,841 | ​ | $ | 941,701
Other intangible assets | ​ |  | 1,391,479 | ​ |  | 964,542
​ | ​ |  | 2,525,320 | ​ |  | 1,906,243
Accumulated amortization - patents | ​ |  | (158,516) | ​ |  | (113,975)
Accumulated amortization – other intangible assets | ​ | ​ | (311,154) | ​ | ​ | (223,365)
​ | ​ | $ | 2,055,650 | ​ | $ | 1,568,903

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