Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5838763 | X-ray tube with a plain bearing | Bernhard Hiller, Roland Koeppel | 1998-11-17 |
| 5654999 | Liquid metal plain bearing | Bernhard Hiller, Roland Koeppel, Wolfgang Kuehnel | 1997-08-05 |
| 5622435 | Plain bearing having a bearing gap filled with liquid metal | Bernhard Hiller, Roland Koeppel, Wolfgang Kuehnel | 1997-04-22 |
| 5086442 | Magnetic coupling for a rotating X-ray tube | Josef Rohmfeld, Stefan Hock | 1992-02-04 |
| 4614850 | Vacuum switch for the low-voltage range, especially a low-voltage contactor | Wilfried Kuhl | 1986-09-30 |