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4. PATENTS (Tables) | 6 Months Ended
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Jun. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of intangible assets |
Schedule of intangible assets |  |  |  |  |
For the years ending December 31, |  |  |  |
(In thousands) |  |  |  |  |
Remainder of 2020 |  |  | $ | 2,332 |
2021 |  |  |  | 4,451 |
2022 |  |  |  | 4,451 |
2023 |  |  |  | 4,376 |
2024 |  |  |  | 3,005 |
Thereafter |  |  |  | 630 |
Patents, net |  |  | $ | 19,245 |

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