Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6820645 | Unlockable non-return valve for very high system pressures | Helmut Behl, Karl Cords, Dragoljub Djenadija, Helmut Etzel, Michael Reinert +1 more | 2004-11-23 |
| 6822953 | Method for transmitting radio signals and receiver for receiving radio signals | Wolfgang Schaefer, Christian Hansen | 2004-11-23 |