Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6773333 | Method for cutting slices from a workpiece | Holger Lundt, Peter Wiesner | 2004-08-10 |
| 5520274 | Friction clutch | — | 1996-05-28 |
| 5254300 | Process for casting silicon blocks of columnar structure | Georg Priewasser, Gerhard Spatzier | 1993-10-19 |
| 5161660 | Clutch plate with plural dampers | — | 1992-11-10 |
| 5004087 | Friction clutch | — | 1991-04-02 |
| 4883153 | Friction clutch | Edmund Maucher, Kurt Frietsch, Paul Maucher | 1989-11-28 |
| D302822 | Cover side of a friction clutch | — | 1989-08-15 |
| D302823 | Cover side of a friction clutch | — | 1989-08-15 |
| 4834832 | Process and apparatus for the manufacture of silicon rods | Horst Stock, Georg Priewasser | 1989-05-30 |
| 4811474 | Friction clutch | Paul Maucher | 1989-03-14 |
| 4792030 | Hub for clutch discs of friction clutches in motor vehicles | Hermann Langeneckert | 1988-12-20 |
| 4781280 | Friction clutch | — | 1988-11-01 |
| D298141 | Friction clutch | — | 1988-10-18 |
| 4660700 | Friction clutch and method of assembling the same | Paul Maucher | 1987-04-28 |
| 4637505 | Fluid-operated clutch disengaging apparatus | — | 1987-01-20 |
| 4556133 | Friction clutch | — | 1985-12-03 |
| 4526258 | Fluid-operated clutch disengaging apparatus | — | 1985-07-02 |
| 4394854 | Method and apparatus for separably connecting crankshafts in internal combustion engines | — | 1983-07-26 |
| 4389985 | Apparatus for establishing and terminating connections between crankshafts | Oswald Friedmann | 1983-06-28 |
| 4368701 | Internal combustion engine with means for separably coupling discrete crankshafts to each other | Oswald Friedmann | 1983-01-18 |
| 4273228 | Friction clutch | — | 1981-06-16 |
| 4254853 | Friction clutch | — | 1981-03-10 |
| 4228882 | Friction clutch unit | Werner Reitz | 1980-10-21 |