| Schedule of Finite-Lived Intangible Assets |
Intangible assets and liabilities at December 31, 2025 and 2024 consist of the following:
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December 31, 2025 |
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December 31, 2024 |
| 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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$ |
(732,469) |
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$ |
44,996 |
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$ |
777,465 |
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$ |
(709,855) |
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$ |
67,610 |
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| Patents |
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888,910 |
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(682,370) |
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206,540 |
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888,910 |
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(584,493) |
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304,417 |
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| Developed technology |
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240,000 |
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(204,000) |
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36,000 |
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240,000 |
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(188,000) |
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52,000 |
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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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(179,100) |
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84,836 |
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263,936 |
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(141,394) |
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122,542 |
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| Favorable contract assets |
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384,465 |
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(383,540) |
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925 |
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384,465 |
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(379,839) |
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4,626 |
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| Customer contract |
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$ |
2,225,123 |
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$ |
(478,813) |
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1,746,310 |
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$ |
2,225,123 |
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$ |
(290,025) |
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1,935,098 |
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$ |
4,806,795 |
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$ |
(2,660,292) |
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$ |
2,146,503 |
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$ |
4,806,795 |
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$ |
(2,293,606) |
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$ |
2,513,189 |
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| Intangible liability |
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| Unfavorable contract liability |
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$ |
2,341,478 |
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$ |
(2,136,143) |
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$ |
205,335 |
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$ |
2,618,168 |
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$ |
(2,195,329) |
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$ |
422,839 |
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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 |
| 2026 |
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$ |
165,814 |
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$ |
145,282 |
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$ |
311,096 |
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| 2027 |
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165,507 |
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151,998 |
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317,505 |
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| 2028 |
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23,140 |
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158,007 |
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181,147 |
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| 2029 |
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5,650 |
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158,007 |
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163,657 |
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| 2030 |
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5,650 |
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166,597 |
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172,247 |
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| Thereafter |
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6,611 |
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762,009 |
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768,620 |
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$ |
372,372 |
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$ |
1,541,900 |
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$ |
1,914,272 |
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