Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7719158 | Slip-ring brush and slip-ring unit equipped with such a slip-ring brush | Ludwig Angerpointner | 2010-05-18 |
| 7307367 | Slip-ring element and method for its manufacture | Ludwig Angerpointner | 2007-12-11 |
| 6909217 | Method for producing slip ring brushes and slip ring brushes made thereby | Ludwig Angerpointner | 2005-06-21 |