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Patents and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2025

Patents and Other Intangible Assets

Schedule of Patents and Other Intangible Assets

​

​	​	​	​	​	​	​	​
​	​	March 31,		​	December 31,		​
(in thousands)		2025			2024
Patents	​	​	​	​	​	​	​
Patents pending	​	$	360	​	$	346	​
Issued patents	​		1,056	​		1,034	​
​	​		1,416	​		1,380	​
Trademarks	​		​	​		​	​
Registered trademarks	​		86	​		86	​
​	​		86	​		86	​
Other	​		8	​		8	​
​	​		1,510	​		1,474	​
Accumulated amortization	​		(686)	​		(644)	​
​	​	$	824	​	$	830	​

Schedule of future amortization expense

​

​	​	​	​
(in thousands)	​	​	​
2025 (remaining)		$	120
2026	​		129
2027	​		106
2028	​		69
2029	​		30
Thereafter	​		2
​	​	$	456

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Tabular disclosure of goodwill and intangible assets, which may be broken down by segment or major class.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 30
-Name Accounting Standards Codification
-Publisher FASB
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Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets.

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-Topic 350
-SubTopic 30
-Name Accounting Standards Codification
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