Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11597524 | Heating device and method for manufacturing same | Ulf-Dieter Ulken | 2023-03-07 |
| 11171475 | Fault current sensor for a fault current protection device for monitoring an electrical consumer for a vehicle | — | 2021-11-09 |
| 10985549 | Fault current protection device for monitoring an electric load for a vehicle, and method for carrying out a self-test of a fault current sensor | Michael R. Meier | 2021-04-20 |
| 7884503 | Method and arrangement for harmonic-wave suppression for AC voltage-operated PTC heaters | Joerg Engelhardt | 2011-02-08 |
| 5318278 | Apparatus for making mixtures of reactive melts | Rolf Bettinger, Wolfgang Vogel, Manfred Fortmann, Dirk Möller | 1994-06-07 |
| 4525250 | Method for chemical removal of oxide layers from objects of metal | Ludwig Fahrmbacher-Lutz | 1985-06-25 |