PATENTS

6 Months Ended

Mar. 31, 2024

PATENTS

PATENTS

G. PATENTS

During the six and three months ended March 31, 2024 and 2023, there was no impairment of patent costs. The weighted average amortization period for patents is approximately 8 years. For the six months ended March 31, 2024 and 2023, amortization of patent costs totaled approximately $17,000 and $20,000, respectively. For the three months ended March 31, 2024 and 2023, amortization of patent costs totaled approximately $8,000 and $10,000, respectively. The total estimated future amortization is as follows:

Six months ending September 30, 2024	$	15,000
Year ending September 30,
2025		29,000
2026		25,000
2027		22,000
2028		19,000
2029		16,000
Thereafter		54,000
Total	$	180,000