Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11952552 | Metal working fluid additive composition | — | 2024-04-09 |
| 11499118 | Metal working fluid additive composition | — | 2022-11-15 |
| 8426350 | Detergent composition | Laurence Geret | 2013-04-23 |
| 6443696 | Exhaust gas turbocharger turbine | Wolfgang Erdmann, Carsten Funke, Paul Löffler, Erwin Schmidt, Siegfried Sumser | 2002-09-03 |
| 6223702 | Internal combustion engine | Karl-Jorg Achenbach, Ulrich Bertsch, Jochen Betsch, Hubert Schnupke, Gunther Zoll | 2001-05-01 |
| 6131543 | Oil pan for an internal combustion engine | Karl-Jorg Achenbach, Ulrich Bertsch, Hubert Schnupke, Gunther Zoll | 2000-10-17 |
| 6070563 | Crankcase of an internal combustion engine | Karl-Jorg Achenbach, Ulrich Bertsch, Hubert Schnupke, Gunther Zoll | 2000-06-06 |
| 6065439 | Internal combustion engine | Karl-Jorg Achenbach, Ulrich Bertsch, Hubert Schnupke, Gunther Zoll | 2000-05-23 |
| 6053142 | Crankcase of an internal combustion engine | Karl-Jorg Achenbach, Ulrich Bertsch, Hubert Schnupke | 2000-04-25 |
| 5704314 | Electromagnetic operating arrangement for intake and exhaust valves of internal combustion engines | Richard Allmendinger, Robert Kekenj | 1998-01-06 |
| 4957068 | Liquid-cooled four-valve cylinder head for a multi-cylinder internal combustion engine | Wolf-Dietrich Wagner, Willi Springer, Ludwig Meissner, Helmut Bonfert, Michael Bottcher +7 more | 1990-09-18 |
| 4919371 | Sealing passage arrangement for a pipeline | Helmut Bonfert, Rolf Klumpp, Wolf-Dietrich Wagner | 1990-04-24 |
| 4823747 | Cylinder head camshaft mounting arrangement | Wolf-Dietrich Wagner, Rolf Klumpp | 1989-04-25 |