Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4398730 | Rotary ring seal with gas-dynamic lubrication for high-speed turbomachines | Gerhard Rucker, Wilfried Weidmann | 1983-08-16 |
| 4385787 | Radial bearing for high-speed turbomachinery | Franz Grafenegger | 1983-05-31 |