Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7544132 | Constant-velocity fixed joint | Gregor Schaaf | 2009-06-09 |
| 7175531 | Constant velocity fixed joint and assembly method | Gregor Schaaf | 2007-02-13 |
| 4790395 | Pipe-driving apparatus | Helmut Gack | 1988-12-13 |
| 4378715 | Apparatus for keeping open the gap cut by a saw in a work piece | Eric Spieth | 1983-04-05 |