Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4807819 | Process and apparatus for granulating powdery materials | Alfons Kreher, Werner Nagel, Bernd Brandt | 1989-02-28 |
| 4708787 | Method for supplying a uniform liquid and gaseous mixture | Gregory J. MacCallum | 1987-11-24 |
| 4609227 | Cutting-tool mounting for rotary excavating head | Walter Wild | 1986-09-02 |
| 4238322 | Apparatus for preparation of a sprayable precipitated silicic acid suspension | Bernd Brandt, Peter Nauroth, Helmut Reinhardt | 1980-12-09 |
| 4224295 | Process for the production of finely divided silicic acid by spray drying | Bernd Brandt, Peter Nauroth, Helmut Reinhardt | 1980-09-23 |