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Patents and Other Intangible Assets (Tables) | 6 Months Ended
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Jun. 30, 2020
Patents and Other Intangible Assets |
Schedule of Patents and other intangible assets | Patents and other intangible assets are summarized as follows:
|  | June 30, |  | December 31,
|  | 2020 |  | 2019
|  | (Unaudited) |  |  |
Patents |  |  |  |  |  |
Patents pending |  | $ | 859,000 |  | $ | 846,000
Issued patents |  |  | 711,000 |  |  | 619,000
|  |  | 1,570,000 |  |  | 1,465,000
Trademarks |  |  |  |  |  |
Trademarks pending |  |  | 88,000 |  |  | 77,000
Registered trademarks |  |  | 23,000 |  |  | 23,000
|  |  | 111,000 |  |  | 100,000
Other |  |  | 8,000 |  |  | 8,000
|  |  | 1,689,000 |  |  | 1,573,000
Accumulated amortization |  |  | (362,000) |  |  | (288,000)
|  | $ | 1,327,000 |  | $ | 1,285,000
Schedule of future amortization expense | Future amortization expense associated with issued patents and registered trademarks as of June 30, 2020 is estimated as follows (unaudited):
2020 (remaining 6 months) |  |  | 76,000
2021 |  |  | 118,000
2022 |  |  | 90,000
2023 |  |  | 57,000
2024 |  |  | 29,000
Thereafter |  |  | 3,000
|  | $ | 373,000

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