| 4. INTANGIBLE AND OTHER ASSETS |
4. INTANGIBLE AND OTHER
ASSETS
Patents and other intangible assets are capitalized
at their historical cost and are amortized over their estimated useful lives. As of June 30, 2026 intangible assets totaled $90,033, net
of $217,725 of accumulated amortization. As of December 31, 2025, intangible assets total $100,036, net of $207,722 of accumulated amortization.
5. RELATED PARTY TRANSACTIONS
| Convertible Notes Payable consists of the following: | |
June 30, | |
December 31, |
| | |
2026 | |
2025 |
| On January 31, 2023, the Company negotiated accrued salaries, vacation, and outstanding convertible notes for its two officers. Under the terms of the agreements, all outstanding notes totaling $4,220,209, accrued salaries of $1,062,000, accrued vacation of $90,193 were converted to promissory notes convertible into common stock with a warrant feature. The convertible promissory notes are unsecured, due five years from issuance, and bear an interest rate of 10%. At the investor’s option until the repayment date, the note may be converted to shares of the Company’s common stock at a fixed price of $0.10 per share along with warrants to purchase one share for every two shares issued at the exercise price of $0.15 per share for three years after the conversion date. | |
| 5,372,403 | | |
| 5,372,403 | |
| Unamortized discount | |
| — | | |
| — | |
| Total, net of unamortized discount | |
$ | 5,372,403 | | |
$ | 5,372,403 | |
|