Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4783011 | Method and apparatus for the two-stage crushing of brittle material for grinding | Gotthardt Blasczyk, Norbert Patzelt, Heinz-Georg Mersmann, Franz-Josef Adrian | 1988-11-08 |
| 4783012 | Method and apparatus for the two-stage crushing of brittle material for grinding | Gotthardt Blasczyk, Norbert Patzelt, Heinz-Georg Mersmann, Franz-Josef Adrian | 1988-11-08 |