Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 8960371 | Gravity driven start phase in power limited elevator rescue operation | Uwe Schoenauer | 2015-02-24 | |
| 6563707 | Chassis for mounting component units of an electric switch cabinet for elevators and escalators | Hartmut Engler, Marvin Dehmlow, Vera Else Marta Steifa, Wolfgang Schoppa | 2003-05-13 | $196,999,000 |
| 5491405 | Level conversion of AC or DC voltage with noise rejection and low power consumption | Helmut Schroder-Brumloop | 1996-02-13 | $4,857,000 |