Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6861842 | Method for determining the amount of charge which can still be drawn from an energy storage battery, and an energy storage battery | Frank Helkmer, Eberhard Meissner, Ingo Koch | 2005-03-01 |
| 5147961 | Preparation of hydroxypolyamides | Hellmut Ahne, Albert Hammerschmidt | 1992-09-15 |
| 5096999 | Catalytic preparation of hydroxypolyamides | Ahne Hellmut, Albert Hammerschmidt | 1992-03-17 |