Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8323548 | Method for manufacturing a multilayer compression moulded element | Hans-Joachim Lippert, Thomas Weber, Jens Lerch | 2012-12-04 |
| 7308759 | Method for production of a multi-layer carbon brush | Martin Schwarzer, Rolf Heilmann, Bernd Rinn | 2007-12-18 |
| 7094366 | Resin-bonded graphite material, method for the production of a resin bonded graphite material and use thereof | Bettina Hübner, Klaus-Georg Tontsch | 2006-08-22 |
| 6068926 | Carbon brush and process for impregnating same | Harald Friedrich, Gunter Schardt | 2000-05-30 |
| 5798178 | Carbon brush and process for impregnating same | Harald Friedrich, Gunter Schardt | 1998-08-25 |