• Filing Date: 2019-05-14
  • Form Type: 10-Q/A
  • Description: Quarterly report (Amendment)
v3.19.1
F. PATENTS
6 Months Ended
Mar. 31, 2019
Intangible Assets, Net (Excluding Goodwill) [Abstract]  
F. PATENTS

During the six months ended March 31, 2019 and 2018, no patent impairment charges were recorded. For the six and three months ended March 31, 2019, amortization of patent costs totaled approximately $23,000 and $11,000, respectively. For the six and three months ended March 31, 2018, amortization of patent costs totaled approximately $19,000 and $9,000, respectively. Approximate estimated future amortization expense is as follows:

 

Six months ending September 30, 2019   $ 20,000  
Year ending September 30,        
2020     39,000  
2021     36,000  
2022     31,000  
2023     21,000  
2024     18,000  
Thereafter     78,000  
Total   $ 243,000