Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6991475 | Electrotechnical device | Volker Dreyer, Wolfgang Brutschin | 2006-01-31 |
| 5855491 | Device for the detachable fastening of one or more instruments at one or more locations and for their electrical connection | Udo Grittke | 1999-01-05 |