Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D631619 | Pet toy | Ryan Rutherford | 2011-01-25 |
| 5176824 | Aerobic aquarium filter chamber | Allan H. Willinger, Jonathan Willinger | 1993-01-05 |
| 5098585 | Aquarium filter assembly | Allan H. Willinger | 1992-03-24 |
| 4934187 | Flow meter for insertion in aquarium filter flow tube | — | 1990-06-19 |