Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4783011 | Method and apparatus for the two-stage crushing of brittle material for grinding | Gotthardt Blasczyk, Norbert Patzelt, Franz-Josef Adrian, Hardy Kropf | 1988-11-08 |
| 4783012 | Method and apparatus for the two-stage crushing of brittle material for grinding | Gotthardt Blasczyk, Norbert Patzelt, Franz-Josef Adrian, Hardy Kropf | 1988-11-08 |
| 4300879 | Process for the heat-treatment of fine-grained material | Wolf Goldmann, Dieter Michaelsen, Dieter Dreyer, Dietmar Holsiepe, Peter Tiggesbaumker +2 more | 1981-11-17 |