Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4334718 | Coupling bearing for rotors above critical speed | Dieter Hirt, Peter Meinke | 1982-06-15 |
| 4324440 | Containing bearing for supercritical rotors | Dieter Hirt | 1982-04-13 |
| 4260204 | Damping restraining bearing for supercritically operation rotors | Dieter Hirt | 1981-04-07 |