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Patents
12 Months Ended
Jul. 31, 2018
Accounting Policies [Abstract]  
Patents

Note 4 - Patents:

The costs and accumulated amortization of patents are summarized as follows:

Patents, net as of August 1, 2017   $—
Net patents acquired during acquisition of HDS     27,221  
Less: Amortization expense     (1,370 )
Patents, net as of July 31, 2017   $ 25,851  
Weighted average life     9 years  
Less: Amortization expense     (2,571 )
Patents, net as of July 31, 2018   $ 23,280  
Weighted average life     8 years  

 

Amortization expense amounted to $2,571 and 1,370 for the years ended July 31, 2018 and 2017, respectively.