Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4795571 | Purification of frozen crystal layers | Bernhard Holzknecht, Hugo Fuchs, Klaus Wintermantel, Peter Thoma | 1989-01-03 |
| 4378240 | Preparation of acicular ferromagnetic metal particles consisting essentially of iron | Hansjoerg Siegle, Hans H. Reich, Horst Autzen, Werner Steck, Werner Loeser +1 more | 1983-03-29 |
| 4328339 | Continuous preparation of isatoic anhydride | Gerhard Kilpper, Johannes Grimmer, Peter Tonne, Hans Christoph Horn | 1982-05-04 |
| 4289589 | Separating toluene diisocyanate and/or higher boiling solvents from distillation residues of the toluene diisocyanate manufacture using a fluidized bed | Waldemar Koehler, Bernd Blumenberg, Ludwig Vogel | 1981-09-15 |
| 4237318 | Manufacture of aqueous methanolic solution of sodium formate | Werner Ostertag, Gerd Wunsch, Volker Kiener, Siegfried Schreiner, Bernd Leutner +2 more | 1980-12-02 |