| Schedule of intangible assets |
| | Useful Lives | | Cost | | | Accumulated Amortization | | | Net | | As of December 31, 2025 | | | | | | | | | | | | Technology, trademarks | | 3-10 yrs. | | $ | 1,216,800 | | | $ | 1,216,800 | | | $ | - | | Trade names | | 3-6 yrs. | | | 592,300 | | | | 592,300 | | | | - | | Websites | | 3-7 yrs. | | | 210,000 | | | | 210,000 | | | | - | | Customer relationships | | 4-10 yrs. | | | 372,200 | | | | 372,200 | | | | - | | Sublicense agreements | | 10 yrs. | | | 294,000 | | | | 294,000 | | | | - | | Non-compete agreements | | 4-5 yrs. | | | 1,060,500 | | | | 1,060,500 | | | | - | | Patents | | 5-7 yrs. | | | 408,800 | | | | 305,300 | | | | 103,500 | | | | | | $ | 4,154,600 | | | $ | 4,051,100 | | | $ | 103,500 | |
| | Useful Lives | | Cost | | | Accumulated Amortization | | | Net | | As of December 31, 2024 | | | | | | | | | | | | Technology, trademarks | | 3-10 yrs. | | $ | 1,216,800 | | | $ | 1,020,100 | | | $ | 196,700 | | Trade names | | 3-6 yrs. | | | 592,300 | | | | 417,300 | | | | 175,000 | | Websites | | 3-7 yrs. | | | 210,000 | | | | 210,000 | | | | - | | Customer relationships | | 4-10 yrs. | | | 372,200 | | | | 221,200 | | | | 151,000 | | Sublicense agreements | | 10 yrs. | | | 294,000 | | | | 294,000 | | | | - | | Non-compete agreements | | 4-5 yrs. | | | 1,060,500 | | | | 993,200 | | | | 67,300 | | Patents | | 5-7 yrs. | | | 408,800 | | | | 252,800 | | | | 156,000 | | | | | | $ | 4,154,600 | | | $ | 3,408,600 | | | $ | 746,000 | |
|