PATENTS

3 Months Ended

Dec. 31, 2023

PATENTS

PATENTS

 G. PATENTS

During the three months ended December 31, 2023 and 2022, there was no impairment of patent costs. The weighted average amortization period for patents is approximately 8 years. Amortization expense for the three months ended December 31, 2023 and 2022 totaled approximately $9,000 and $10,000, respectively. The total estimated future amortization is as follows:

Nine months ending September 30, 2024	$	23,000
Year ending September 30,
2025		29,000
2026		25,000
2027		22,000
2028		19,000
2029		16,000
Thereafter		54,000
Total	$	188,000