Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5855186 | Sanitization system for cat litter boxes | Knut H. Larsen, Ashley L. Larsen | 1999-01-05 |
| 5775258 | Sanitization system for cat litter boxes | Knut H. Larsen, Ashley L. Larsen | 1998-07-07 |