| 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 |
