Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10758665 | Biological component collection system and circuit internal pressure acquisition method | Masatsugu IGARASHI | 2020-09-01 |
| 6341579 | Litter box filter system | William E. Alkire, Shawna M. Swenson | 2002-01-29 |
| 6123048 | Litter box filter system | William E. Alkire | 2000-09-26 |