| Schedule of Finite-Lived Intangible Assets |
Intangible assets and liabilities at December 31, 2019 and 2018 consist of the following:
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December 31, 2019 |
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December 31, 2018 |
Intangible assets |
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Cost |
|
Accumulated Amortization |
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Net |
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Cost |
|
Accumulated Amortization |
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Net |
Product certifications |
|
$ |
726,159 |
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$ |
(399,906 |
) |
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$ |
326,253 |
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$ |
726,159 |
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$ |
(345,658 |
) |
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$ |
380,501 |
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Patents |
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1,017,108 |
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(206,499 |
) |
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810,609 |
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910,569 |
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(188,239 |
) |
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722,330 |
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Developed technology |
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240,000 |
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(108,000 |
) |
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132,000 |
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240,000 |
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(92,000 |
) |
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148,000 |
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Trademarks |
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26,896 |
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— |
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26,896 |
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22,752 |
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— |
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22,752 |
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In process R&D |
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263,936 |
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— |
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263,936 |
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263,936 |
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— |
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263,936 |
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TTcogen intangible assets |
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29,607 |
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(6,477 |
) |
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23,130 |
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29,607 |
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(2,776 |
) |
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26,831 |
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Favorable contract assets |
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274,858 |
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(263,901 |
) |
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10,957 |
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1,561,739 |
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(232,099 |
) |
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1,329,640 |
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$ |
2,578,564 |
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$ |
(984,783 |
) |
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$ |
1,593,781 |
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$ |
3,754,762 |
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$ |
(860,772 |
) |
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$ |
2,893,990 |
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Intangible liability |
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Unfavorable contract liability |
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$ |
4,689,025 |
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$ |
(2,154,207 |
) |
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$ |
2,534,818 |
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$ |
7,912,275 |
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$ |
(1,619,676 |
) |
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$ |
6,292,599 |
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| Schedule of Estimated Future Amortization Expense |
Aggregate future amortization over the next five years is estimated to be as follows:
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Non-contract related intangibles |
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Contract related intangibles |
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Total |
2020 |
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$ |
246,967 |
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$ |
(431,990 |
) |
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(185,023 |
) |
2021 |
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232,266 |
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(437,477 |
) |
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(205,211 |
) |
2022 |
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225,556 |
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(411,844 |
) |
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(186,288 |
) |
2023 |
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218,368 |
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(335,183 |
) |
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(116,815 |
) |
2024 |
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195,961 |
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(290,260 |
) |
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(94,299 |
) |
Thereafter |
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436,810 |
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(617,107 |
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(180,297 |
) |
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$ |
1,555,928 |
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$ |
(2,523,861 |
) |
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$ |
(967,933 |
) |
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