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Intangible assets, net
12 Months Ended
Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible assets, net

Note 7 – Intangible assets, net

 

Intangible assets, net consist of the following:

 

               
    December 31,
2024
  December 31,
2023
         
Patents   $ 115,051     $ 116,768  
Less: accumulated amortization     (109,423 )     (100,371 )
Intangible assets, net   $ 5,628     $ 16,397  

 

Amortization expense for the years ended December 31, 2024, 2023, and 2022 amounted to $10,603, $11,355, and $14,434, respectively.

 

The estimated amortization is as follows:

 

   
Twelve months ending December 31,  Estimated
amortization expense
2025   $5,628