Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5213337 | System for communication using a broadcast audio signal | — | 1993-05-25 |
| 5002660 | Compact aquarium filter | Robert F. Reinoehl, Charles O. Fuerst, Leonard Pitts, John M. Fisher | 1991-03-26 |
| 4601821 | Freestanding aquarium filter | Charles O. Fuerst | 1986-07-22 |
| 4483769 | Filter cartridge | — | 1984-11-20 |
| 4287468 | Dimmer control system | — | 1981-09-01 |