Note 4 – Patents and Other Intangible Assets, Net

Patents and other intangible assets, net are summarized as follows:

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Amortization expense for the three and six months ended June 30, 2026 was $35 thousand and $72 thousand, respectively.

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Amortization expense for the three and six months ended June 30, 2025 was $43 thousand and $85 thousand, respectively.

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Future amortization expense associated with issued patents and registered trademarks as of June 30, 2026 is as follows:

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The amortization life for patents ranges between three to five years and trademark lives are set at ten years. The Company does not amortize patents or trademarks classified as pending.

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During the three and six months ended June 30, 2026 and 2025, the Company assessed its patent and trademark assets. During the three and six months ended June 30, 2026, we recorded impairments of $16 thousand and $39 thousand, respectively. During the three and six months ended June 30, 2025, we did not have impairments. These impairment costs are included within research and development in the unaudited condensed consolidated statements of operations and comprehensive loss. The Company also evaluated its strategic approach to the pursuit and protection of its intellectual property. It is the intent of the Company to continue to pursue intellectual property protection. If the Company identifies certain assets where the intellectual property does not directly align with its core technology, the Company will impair the intangible asset and write-off the asset as an expense.