Issued Patents 1994
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5352542 | Use of silver alloys as cadium-free brazing solder | Alexander Voelcker, Joerg Beuers, Sigurd Joensson, Georg Ptaschek, Wolfgang Kaster | 1994-10-04 |
| 5341981 | Use of a cadmium-free silver alloy as brazing solder (III) | Wolfgang Weise, Alexander Voelcker, Willi Malikowski, Joerg Beuers, Harald Krappitz | 1994-08-30 |
| 5334724 | Preparation of substituted 2-chloropyridines | Klaus Jelich, Rudolf Braden, Winfried Rosen | 1994-08-02 |
| 5334750 | Process for the preparation of cinnamic acid derivatives | Carsten Hesse, Thomas Himmler | 1994-08-02 |