Note H - Patents

12 Months Ended

Dec. 31, 2022

Notes to Financial Statements

Goodwill and Intangible Assets Disclosure [Text Block]

NOTE H — PATENTS

	December 31, 2022
	Cost		Accumulated Amortization			Net
Patents-foundation intellectual property	$	1,377,863	$	(1,149,907	)	$	227,956
Total	$	1,377,863	$	(1,149,907	)	$	227,956

	December 31, 2021
	Cost		Accumulated Amortization			Net
Patents-foundation intellectual property	$	1,377,863	$	(1,100,244	)	$	277,619
Total	$	1,377,863	$	(1,100,244	)	$	277,619

Patents are amortized utilizing the straight-line method over estimated useful lives ranging from 3 to 20 years. Amortization expense was $49,663 and $53,011 for the years ended December 31, 2022 and 2021 , respectively. The annual amortization expense expected to be recorded for existing intangibles assets for the years 2023 through 2027 is approximately $52,000, $34,000, $28,000, $28,000 and $86,000, respectively.