Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6581679 | Heat exchanger and method for producing a heat exchanger | Ewald Fischer, Matthias Jung, Wolfgang Seewald | 2003-06-24 |
| 4618045 | Fluid friction clutch | — | 1986-10-21 |
| 4564094 | Fluid friction clutch | — | 1986-01-14 |
| 4564093 | Fluid friction clutch | — | 1986-01-14 |
| 4485902 | Recycling arrangement for a hydraulic coupling | — | 1984-12-04 |
| 4441599 | Fluid clutch | — | 1984-04-10 |
| 4220835 | Electrical switch construction | Siegfried Wolpert, Kuno Futterknecht | 1980-09-02 |