Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5844331 | Process for monitoring the wear of at least one contact in a switching device and switching device designed thereof | Jorg Kieser, David Branston, Reinhard Maier | 1998-12-01 |
| 4633208 | Magnetic multi-pole arrangement of the nth order | Hermann Wollnik | 1986-12-30 |
| 4460860 | Method and apparatus for increasing the maximum speed of rotation of a synchronous machine with a given excitation field strength and terminal voltage | Günter Schwesig, Hartmut Vogt, Hans-Hermann Zander | 1984-07-17 |
| 4412145 | Stator for an electric machine excited by permanent magnets | Horst Grafenschnell | 1983-10-25 |