Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5635771 | Secondary accumulator charging/discharging for a motor vehicle using a controllable resistor | Rainer Mertl, Erhard Otto, Walter Streit, Kurt Maute, Wolfgang Zag | 1997-06-03 |