Annual report pursuant to Section 13 and 15(d)

PATENTS AND TRADEMARKS (Tables)

v3.22.1
PATENTS AND TRADEMARKS (Tables)
12 Months Ended
Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Patents and trademarks
           
    2021     2020  
Patents and trademarks   $ 309,205     $ 301,770  
Less: Accumulated amortization     (242,723 )     (237,355 )
Patents and trademarks, Net   $ 66,482     $ 64,415