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Intangible Assets, Net | 12 Months Ended
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Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract] |
Intangible Assets, Net | NOTE 5 – INTANGIBLE ASSETS, NET Intangible assets, net mainly consist of the following:
|  | December 31, 2020 |  |  | December 31 2019 |
Land use rights |  | $ | 1,016,215 |  |  | $ | 952,455 |
Patents |  |  | 417,919 |  |  |  | 391,697 |
Subtotal |  |  | 1,434,134 |  |  |  | 1,344,152 |
Less: accumulated amortization for patents |  |  | (310,393 | ) |  |  | (234,456 | )
Accumulated amortization for land use right |  |  | (149,045 | ) |  |  | (120,644 | )
Subtotal |  |  | (459,438 | ) |  |  | (355,100 | )
Intangible assets, net |  | $ | 974,696 |  |  | $ | 989,052 |
Amortization expense was $76,141 and $58,671 for the years ended December 31, 2020 and 2019, respectively. Estimated future amortization expense for intangible assets is as follows:
December 31, |  | Total amortization expense |
2021 |  | $ | 55,198 |
2022 |  |  | 55,198 |
2023 |  |  | 55,198 |
2024 |  |  | 29,043 |
2025 |  |  | 20,324 |
Thereafter |  |  | 759,735 |
Total expense |  | $ | 974,696 |

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- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
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