Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5955813 | Electric motor | Ekkehard Bolte, Klaus Stips | 1999-09-21 |
| 5714828 | Electric motor having a stator and a rotor | Bernd Ackermann, Jelm Franse, Ping-Shih Wang, Ekkehard Bolte, Klaus Stips | 1998-02-03 |
| 4884002 | Rotary or linear electric motor whose armature is driven by means of ultrasonic vibrations | Roland K. Eusemann, Heinrich A. Oepen | 1989-11-28 |