Note H - Patents

12 Months Ended

Dec. 31, 2020

Notes to Financial Statements

Goodwill and Intangible Assets Disclosure [Text Block]

NOTE H — PATENTS

	December 31, 2020
	Cost		Accumulated Amortization			Net
Patents-foundation intellectual property	$	1,377,863	$	(1,048,614	)	$	329,249
Total	$	1,377,863	$	(1,048,614	)	$	329,249
	December 31, 2019
	Cost		Accumulated Amortization			Net
Patents-foundation intellectual property	$	1,377,863	$	(995,603	)	$	382,260
Total	$	1,377,863	$	(995,603	)	$	382,260

Patents are amortized utilizing the straight-line method over estimated useful lives ranging from

3

to

20

years. Amortization expense was

$53,013

 for the year ended

December 31, 2020 

and

2019,

respectively. The annual amortization expense expected to be recorded for existing intangibles assets for the years

2021

 through

2025

 is approximately 

$53,000,

$53,000,

$47,000,

$33,000

and

$24,000.