PATENTS (Tables) |
9 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Sep. 30, 2021 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Patents | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| The gross carrying amounts and accumulated amortization related to acquired intangible assets as of September, 2021 and December 31, 2020 were as follows |
The include patents with estimated remaining economic useful lives ranging from 1.75 to 12 years. For all periods presented, all of the Company’s patents were subject to amortization. The gross carrying amounts and accumulated amortization related to acquired intangible assets as of September, 2021 and December 31, 2020 were as follows
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| Future amortization of intangible assets, net is as follows: |
Amortization expense for the three months ended September 30, 2021 and 2020 was $74,000 and $72,000, respectively. Amortization expense for the nine months ended September 30, 2021 and 2020 was $221,000 and $216,000, respectively. Future amortization of intangible assets, net is as follows:
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