Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9636565 | Recreation room and method of adjusting the room atmosphere | Volker Spiegel | 2017-05-02 |
| 8825313 | Crane control system and crane | Peter Abel, Edwin Cettinich, Oliver Ruoss | 2014-09-02 |
| 7841929 | Recreation room and method for controlling the atmosphere in the room | Volker Spiegel | 2010-11-30 |