Patents and Other Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2023

Patents and Other Intangible Assets

Schedule of Patents and Other Intangible Assets

	June 30,		December 31,
(in thousands)	2023		2022
Patents
Patents pending	$	360	$	307
Issued patents		782		815
		1,142		1,122
Trademarks
Trademarks pending		4		6
Registered trademarks		86		95
		90		101
Other		8		8
		1,240		1,231
Accumulated amortization		(478)		(433)
	$	762	$	798

Schedule of future amortization expense

(in thousands)
2023 (remaining 6 months)	$	67
2024		125
2025		94
2026		60
2027		38
Thereafter		6
	$	390