Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6205838 | Device for determining the rotational speed | Siegbert Steinlechner, Johannes Artznei, Reinhard Neul | 2001-03-27 |
| 5178686 | Lightweight cast material | Manfred Ruhle | 1993-01-12 |
| 5141703 | Process of producing Mg.sub.2 Si-containing alloys | Kersten V. Oldenburg, Georg Frommeyer | 1992-08-25 |
| 5097887 | Process of making a pressure-diecast, fiber-reinforced part | Gunter Neite | 1992-03-24 |
| 4734937 | Telephone installation | — | 1988-03-29 |
| 4717869 | Controlled current source apparatus for signals of either polarity | Rudolf Koch | 1988-01-05 |
| 4531086 | Device for stabilizing the voltage of a single- or multi-phase a-c network | Robert Brehler | 1985-07-23 |
| 4357570 | Voltage compensation for an A-C network supplying a rapidly-changing load | Wolfgang Kaufhold | 1982-11-02 |