Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11171457 | Holder for slip ring brushes | Christian Holzapfel, Marvin Doll, Johannes Katz | 2021-11-09 |
| 10833467 | Vibration absorbing device for slip-ring brushes | Christian Vogl, Jan Rehder, Bastian Cording, Marvin Doll | 2020-11-10 |
| 10666004 | Slipring with reduced contact noise | Christian Holzapfel, Sascha Christmann, Michael Ritz | 2020-05-26 |
| 10396516 | Slipring with integrated heating unit | Jan Rehder, Albert Kirzdörfer | 2019-08-27 |
| 9093808 | Vibration-resistant slip ring device | Christian Holzapfel, Johannes Ott | 2015-07-28 |
| 8986053 | Slip ring brush and holder for slip ring brush | Matthias Hermann, Christian Holzapfel | 2015-03-24 |