Patents (Tables)

12 Months Ended

Dec. 31, 2023

Patents

Schedule of patent

	2023			2022
Gross carrying amount	$	8,473,000		$	8,473,000
Accumulated amortization		(7,147,000	)		(6,881,000	)
Patents, net	$	1,326,000		$	1,592,000

Schedule of future amortization of current intangible

For the years ended December 31,
2024	$	120,000
2025		120,000
2026		120,000
2027		119,000
2028		116,000
Thereafter		731,000
Total	$	1,326,000