Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5853591 | Rotating biological aquarium filter system | Wilfred Philip Snyder, Charles O. Fuerst | 1998-12-29 |
| 5423978 | Rotating biologic aquarium filter system | Wilfred Philip Snyder, Charles O. Fuerst | 1995-06-13 |