Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5765998 | Process and apparatus for ensuring the operability of gas seals in turbocompressors | Wolfgang Zacharias | 1998-06-16 |
| 5158431 | Shaft seal assembly, especially for high-pressure turbocompressors | Karl-Heinz Victor, Hans-Wilhelm Laarmann, Gustav Maser, Ralf Dedeken | 1992-10-27 |
| 5149249 | Shaft seal assembly, especially for high-pressure turbocompressors | Karl-Heinz Victor, Hans-Wilhelm Laarman, Gustav Maser, Ralf Dedeken | 1992-09-22 |