Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4997575 | Filtering centrifuge | — | 1991-03-05 |
| 4801336 | Process for accelerating the transfer of media in a fluidized bed | Franz Alstetter | 1989-01-31 |
| 4710356 | Apparatus to accelerate the transfer of material between two media reacting in a fluidized bed | Franz Alstetter | 1987-12-01 |