Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5294853 | Electrical powerplant for vehicles | Gerd Knippschild, Hans-Jurgen Lipski | 1994-03-15 |
| 5079461 | Power supply device for bicycles | Hans-Jurgen Lipski, Georg Schroder | 1992-01-07 |