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INTANGIBLE ASSETS
3 Months Ended
Mar. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]  
INTANGIBLE ASSETS

NOTE 4 INTANGIBLE ASSETS

 

Intangible assets consisted of the following:

 

   March 31, 2022   December 31, 2021 
Patents  $698,513   $649,969 
Trademark   45,450    45,450 
Less: accumulated amortization   (167,781)   (155,386)
Total, net  $576,182   $540,033 

 

Amortization expense on intangible assets was $12,395 and $8,599 for the three months ended March 31, 2022 and 2021, respectively.

 

The following table sets forth the estimated amortization expense for future periods:

 

2022  $37,186 
2023   48,291 
2024   47,334 
2025   47,334 
2026   47,334 
2027 and thereafter   348,703 
Total  $576,182