Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6940265 | Device, ammeter and motor vehicle | Andreas Stratmann, Stephan Ernst, Wolfgang Feiler, Qu Ning | 2005-09-06 |
| 6861717 | Device for defecting a magnetic field, magnetic field measure and current meter | — | 2005-03-01 |