Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5722361 | Internal combustion engine with pistons that rotate about a center line | Huschang Sabet, Dietrich Eckhardt | 1998-03-03 |
| 4957068 | Liquid-cooled four-valve cylinder head for a multi-cylinder internal combustion engine | Wolf-Dietrich Wagner, Ludwig Meissner, Helmut Bonfert, Michael Bottcher, Thomas Hardt +7 more | 1990-09-18 |
| 4284042 | Multicylinder internal combustion engine with valve disconnection | — | 1981-08-18 |
| 4267811 | Cylinder head for a mixture-compressing internal combustion engine | — | 1981-05-19 |