| Schedule of Finite-Lived Intangible Assets |
Intangible assets and liabilities at December 31, 2023 and 2022 consist of the following:
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December 31, 2023 |
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December 31, 2022 |
| Intangible assets |
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Cost |
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Accumulated Amortization |
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Net |
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Cost |
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Accumulated Amortization |
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Net |
| Product certifications |
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$ |
777,465 |
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$ |
(658,676) |
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$ |
118,789 |
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$ |
777,465 |
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$ |
(584,863) |
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$ |
192,602 |
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| Patents |
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888,910 |
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(496,807) |
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392,103 |
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888,910 |
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(405,140) |
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483,770 |
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| Developed technology |
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240,000 |
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(172,000) |
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68,000 |
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240,000 |
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(156,000) |
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84,000 |
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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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26,896 |
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— |
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26,896 |
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| In process R&D |
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263,936 |
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(103,689) |
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160,247 |
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263,936 |
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(65,984) |
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197,952 |
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| Favorable contract assets |
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384,465 |
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(376,139) |
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8,326 |
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384,465 |
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(372,091) |
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12,374 |
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| Customer contract |
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$ |
1,772,659 |
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$ |
(110,791) |
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1,661,868 |
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$ |
— |
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$ |
— |
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— |
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$ |
4,354,331 |
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$ |
(1,918,102) |
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$ |
2,436,229 |
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$ |
2,581,672 |
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$ |
(1,584,078) |
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$ |
997,594 |
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| Intangible liability |
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| Unfavorable contract liability |
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$ |
2,618,168 |
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$ |
(2,019,122) |
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$ |
599,046 |
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$ |
2,618,168 |
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$ |
(1,797,951) |
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$ |
820,217 |
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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 |
| 2024 |
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$ |
194,675 |
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$ |
(28,485) |
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$ |
166,190 |
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| 2025 |
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169,265 |
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34,272 |
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203,537 |
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| 2026 |
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163,383 |
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82,490 |
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245,873 |
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| 2027 |
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162,150 |
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90,131 |
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252,281 |
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| 2028 |
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17,720 |
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96,140 |
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113,860 |
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| Thereafter |
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40,272 |
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788,274 |
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828,546 |
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$ |
747,465 |
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$ |
1,062,822 |
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$ |
1,810,287 |
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