Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5701046 | Process for the production of multi-layered brushes and brushes obtained by the process | Eric Kammerer, Lothar Biering, Erhard Grohs, Conrad Reynvaan, Horst Siegmund +2 more | 1997-12-23 |
| 5270504 | Sliding contact member for high currrent densities | Erhard Grohs, Lothar Biering, Conrad Reynvaan, Jurgen Spangenberg, Arwed Uecker | 1993-12-14 |