Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6296395 | Self-aligning roller bearing | Armin Brand, Martin Grehn, Michael Weigand | 2001-10-02 |
| 5702187 | Guide ring for roller bearing | Michael Weigand, Martin Grehn | 1997-12-30 |
| 5567059 | Window cage | Michael Weigand, Martin Grehn | 1996-10-22 |