Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5622710 | Animal feed additive based on fermentation broth, a process for its production and its use | Wolfram Binder, Ulrich Hertz, Heinz Friedrich, Hermann Lotter, Wolfgang Hohn +2 more | 1997-04-22 |
| 4447614 | Process for the purification of nicotinic acid amide | Helmut Beschke, Heinz Friedrich, Gunter Prescher | 1984-05-08 |
| 4447615 | Process for the purification of nicotinic acid amide I | Helmut Beschke, Heinz Friedrich, Gunter Prescher | 1984-05-08 |
| 4276143 | Apparatus for continuously measuring ion concentrations | Herbert Diehl, Kurt Eiermann, Reinhold Lamberty, Wolfgang Nischk | 1981-06-30 |
| 4237299 | Process for the recovery of pyridine and 3-methylpyridine | Helmut Beschke, Heinz Friedrich, Gerd Schreyer | 1980-12-02 |