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Patents and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2020

Patents and Other Intangible Assets

Schedule of Patents and other intangible assets

Patents and other intangible assets are summarized as follows:

		March 31,			December 31,
		2020			2019
		(Unaudited)
Patents
Patents pending		$	857,000		$	846,000
Issued patents			676,000			619,000
			1,533,000			1,465,000
Trademarks
Trademarks pending			87,000			77,000
Registered trademarks			23,000			23,000
			110,000			100,000
Other			8,000			8,000
			1,651,000			1,573,000
Accumulated amortization			(325,000)			(288,000)
		$	1,326,000		$	1,285,000

Schedule of future amortization expense

Future amortization expense associated with issued patents and registered trademarks as of March 31, 2020 is estimated as follows (unaudited):

2020 (remaining 9 months)			109,000
2021			111,000
2022			83,000
2023			49,000
2024			22,000
		$	374,000

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