Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5791490 | Separator for particulate materials | Otto Heinemann, Ingo Engeln, Hubert Eickholt, Ludger Lohnherr, Ludger Schulte | 1998-08-11 |
| 5122190 | Method for producing a hydraulic binder | J. Bruce Tompkins | 1992-06-16 |
| 5024754 | Separator | Norbert Patzelt | 1991-06-18 |
| 4861265 | Apparatus and method for the heat treatment of fine-grained material | Manfred Durr, Georg Unland, Gunter Driemeier, Karl Krutzner, Heinz-Herbert Schmits +3 more | 1989-08-29 |
| 4792393 | Spiral air sifter having air regulation | Gotthardt Blasczyk, Hubert Eickholt, Otto Heinemann, Norbert Bredenholler, Ludger Kimmeyer +2 more | 1988-12-20 |