Issued Patents All Time
Showing 51–59 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4897584 | Device and method for detecting the coil temperature of a direct-current motor, especially a brushless direct-current motor | Bertold Grutzmacher, Peter Eiswirth | 1990-01-30 |
| 4879497 | Method and device for measuring the temperature of a brushless d-c motor | Jurgen Seeberger | 1989-11-07 |
| 4851763 | Current-measuring device, especially for determining the motor current of a direct-current motor | Bertold Grutzmacher | 1989-07-25 |
| 4764703 | Igniter plug with vibration damping means | — | 1988-08-16 |
| 4655879 | Glycerol distillation process | Rolf Brockmann, Lutz Jeromin, Wilhelm Johannisbauer, Otto Michel, Juergen Plachenka | 1987-04-07 |
| 4593340 | Igniter with improved insulator support | — | 1986-06-03 |
| 4563158 | Fuel ignition device and method of assembling same | — | 1986-01-07 |
| 4497633 | Method of forming a tubular electrical insulator assembly | Gaston R. Isliker | 1985-02-05 |
| 4401296 | Electro-metal smelting furnace with taphole arranged at the bottom | Klaus V. Ploetz, Ludger Zangs, Ralf Schneider, Hannsgeorg Bauer, Josef Otto +2 more | 1983-08-30 |