Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859153 | Pressure wave charger | — | 1989-08-22 |
| 4838234 | Free-running pressure wave supercharger | — | 1989-06-13 |
| 4808082 | Pressure wave supercharger | Hubert Kirchhofer | 1989-02-28 |
| 4798049 | Internal combustion engine with pressure-wave supercharger and lambda probe | — | 1989-01-17 |
| 4796595 | Free-running pressure wave supercharger driven by gas forces | Ibrahim El-Nashar, Francois Jaussi, Hubert Kirchhofer, Christian Komauer, Josef Perevuznik +1 more | 1989-01-10 |