Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12017193 | Propeller and stirrer for circulating wastewater in a clarifier | Marcus Höfken | 2024-06-25 |
| 11731090 | Hyperboloid agitator for circulating liquids, and agitating and gassing device | Marcus Höfken, Torsten Frey, Walter Steidl | 2023-08-22 |
| 11484848 | Apparatus for aerating bodies of water | Marcus Höfken, Torsten Frey, Walter Steidl | 2022-11-01 |
| 9957800 | Horizontal agitator | Marcus Hoefken | 2018-05-01 |
| 9604162 | Rotary disc filter device | Marcus Hoefken | 2017-03-28 |
| 9555349 | Rotary disc filter device | Marcus Hoefken | 2017-01-31 |
| 9393534 | Horizontal agitator | Marcus Hoefken | 2016-07-19 |
| 8459863 | Agitator device for circulating a liquid in a clearing basin | Marcus Hoefken, Torsten Frey | 2013-06-11 |