Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6666336 | Sieving device | — | 2003-12-23 |
| 6508364 | Sieving device | Josef Zuber | 2003-01-21 |
| 5483752 | Device for heating or cooling bulk materials, particularly for lignite preheating | Hans-Joachim Klutz | 1996-01-16 |
| 5407060 | Resonant vibrating chamber | — | 1995-04-18 |
| 4970806 | Process and device for conditioning bulk material | Harmut Hederer, Wolfgang Hillebrand | 1990-11-20 |
| 4785554 | Method and apparatus for conditioning bulk material | Hartmut Hederer, Wolfgang Hillebrand | 1988-11-22 |