Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6187179 | Outside filter, in particular for aquarium | Ferdinand Mayer | 2001-02-13 |
| 5404840 | Covering device for an aquarium, terrarium or similar vivarium | Ulrich Herold, Gerhard Frank, Ferdinand Mayer, Albert Baier, Michael Schmidt +1 more | 1995-04-11 |
| 5277800 | Inner filter for aquarium | Klaus Dieckmann, Ulrich Herold, Ferdinand Mayer | 1994-01-11 |