Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5435574 | Contactless pressurizing-gas shaft seal | Karl-Heinz Victor, Ralf Dedeken, Gustav Maser | 1995-07-25 |
| 5368314 | Contactless pressurizing-gas shaft seal | Karl-Heinz Victor, Ralf Dedeken, Gustav Maser | 1994-11-29 |
| 5158431 | Shaft seal assembly, especially for high-pressure turbocompressors | Helmut Schellong, Karl-Heinz Victor, Gustav Maser, Ralf Dedeken | 1992-10-27 |
| 5092612 | Contactless pressurizing-gas shaft seal | Karl-Heinz Victor, Gustav Maser, Ralf Dedeken | 1992-03-03 |