Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D972706 | Ventilating fan | Roland Keber, Tobias Sieger, Wolfgang Laufer, Jürgen Herr, Arnold Schulde +6 more | 2022-12-13 |
| 11391282 | Axial ventilator having noise reducing fan wheel blades | Roland Keber, Tobias Sieger, Wolfgang Laufer, Jürgen Herr, Arnold Schulde +6 more | 2022-07-19 |