Issued Patents 1989
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867659 | Parallel-and external-axial rotary piston blower operating in meshing engagement | Wolfgang Sohler | 1989-09-19 |
| 4850827 | Cooling system of an eccentric shaft of a rotary piston internal combustion engine | — | 1989-07-25 |
| 4830591 | Lubrication system for a rotary-piston internal combustion engine | Hans-Jurgen Klusowski | 1989-05-16 |
| 4824125 | Axial seal for a rotary-piston engine | — | 1989-04-25 |
| 4808096 | Axial sealing system of a rotary piston engine | Manfred Fischer | 1989-02-28 |
| 4801254 | Cooling system for a rotary piston internal combustion engine | — | 1989-01-31 |
| 4797076 | Inner seal of a rotary piston engine | — | 1989-01-10 |