Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11402065 | Polar cap-reinforced pressure container | Michael Sonnen, Frank Otremba, Christian Middendorf, Heinz-Willi Bickendorf | 2022-08-02 |
| 11162638 | Polar cap-reinforced pressure vessel | Christian Middendorf | 2021-11-02 |
| 11098801 | Pole cap with pressure connection element for pressure vessels | Claus Castenholz | 2021-08-24 |
| 9816583 | Flywheel energy store | — | 2017-11-14 |
| 9812865 | Mobile energy storage module | Ing. Christoph Treppmann, Ing. Rainer vor dem Esche, Dipl. Ing. Michael Sonnen, Christoph Schäfer, Christian Middendorf | 2017-11-07 |