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Patents
9 Months Ended
Mar. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]  
Patents

The cost of the oxidation-reduction potential (“ORP”) technology related patents for the RedoxSYS and MiOXSYS Systems was $380,000 when they were acquired and are being amortized over the remaining U.S. patent life of approximately 15 years as of the date, which expires in March 2028. Patents consist of the following:

  

    As of March 31,     As of June 30,  
    2019     2018  
Patents   $ 380,000     $ 380,000  
Less accumulated amortization     (153,000 )     (134,000 )
   Patents, net   $ 227,000     $ 246,000  

 

The amortization expense was as follows:

  

    Three Months Ended March 31,     Nine Months Ended March 31,  
    2019     2018     2019     2018  
 Amortization expense   $ 6,000     $ 6,000     $ 19,000     $ 19,000