Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4927086 | Grinding process and apparatus | Karl-Heinz Dammertz, Lutz Schneider, Gotthard Blasczyk | 1990-05-22 |
| 4911554 | Rotatable drum | Hubert Grothaus | 1990-03-27 |
| 4909450 | Roller mill | Ludger Lohnherr | 1990-03-20 |
| 4792393 | Spiral air sifter having air regulation | Gotthardt Blasczyk, Hubert Eickholt, Otto Heinemann, Norbert Bredenholler, Ludger Kimmeyer +2 more | 1988-12-20 |
| 4709864 | Method and apparatus for the crushing of material | Norbert Patzelt, Lutz Schneider, Osbert R. Knobloch, Manfred Muller | 1987-12-01 |
| 4694994 | Roller mill | Gotthardt Blasczyk, Hubert Eickholt, Ludger Lohnherr | 1987-09-22 |
| 4664322 | Tube mill | Norbert Patzelt, Karl-Heinz Alker | 1987-05-12 |
| 4598872 | Method of operating grinding apparatus and grinding apparatus operating according to this method | Ludger Lohnherr, Peter Rittscher, Walter Holz | 1986-07-08 |