Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5468575 | Maintenance-free high capacity lead battery or accumulator | Gunther K. Holland | 1995-11-21 |
| 4889094 | Method for recognizing the power stroke of a cylinder of an internal combustion engine | Hans-Ernst Beyer, Jorg Bonitz, Robert Entenmann, Siegmar Forster, Rochus Knab +9 more | 1989-12-26 |
| 4762105 | Control system for an extrinsic-ignition internal combustion engine responsive to an engine load signal provided to dual control units | Hans-Ernst Beyer, Jorg Bonitz, Robert Entenmann, Siegmar Forster, Rochus Knab +9 more | 1988-08-09 |
| 4599012 | Self-redressing slalom pole | Wolfgang Ostermann | 1986-07-08 |