Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8827042 | Elevator regenerative drive including an air core inductor | Marvin Dehmlow, Michael Mann | 2014-09-09 |
| 5765664 | Elevator drive fault detector | Peter Herkel, Gunter Blechschmidt | 1998-06-16 |