Annual report pursuant to Section 13 and 15(d)

3. PATENTS (Tables)

v3.21.2
3. PATENTS (Tables)
12 Months Ended
Mar. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of patents

Patents, net consist of the following:

 

    March 31, 2021     March 31, 2020  
Issued patents   $ 157,442     $ 157,442  
Accumulated amortization     (154,691 )     (154,141 )
Issued patents, net of accumulated amortization     2,751       3,301  
Patents pending     54,203       54,203  
Patents, net   $ 56,954     $ 57,504