Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6660426 | Multi-cell storage battery with gas vent in a cover assembly | Jürgen Freitag, Wilhelm Cramer | 2003-12-09 |
| 6071642 | Method for manufacturing a battery cover which is at least partially electrically conductive | Gerhard Pospiech, Eberhard Nann, Hermann Hester, Franz-Josef Kohaupt | 2000-06-06 |
| 5380604 | Lead accumulator | Peter Scholz | 1995-01-10 |