NOTE 7 – INTANGIBLE ASSETS

Intangible assets represent legal fees and patent fees associated with the prosecution of patent applications. The Company has recorded amortization expense on patents granted, which are amortized over the remaining legal life. Maintenance patent fees are paid to a government patent authority to maintain a granted patent in force. Some countries require the payment of maintenance fees for pending patent applications. Maintenance fees paid after a patent is granted are expensed, as these are considered ongoing costs to “maintain a patent”. Maintenance fees paid prior to a patent grant date are capitalized to patent costs, as these are considered “patent application costs”. No amortization expense is recorded for remaining patent applications since patents on these applications have yet to be granted.

Intangible assets consist of the following:

Amortization expense for the three months ended March 31, 2026 and 2025 was $18,522 and $26,508, respectively. During the three months ended March 31, 2026, the Company retired certain expired patents with a cost of $130,500 and accumulated amortization of $94,091 for a loss of $36,409. There were no patent costs written off for the three months ended March 31, 2025