Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4755295 | Multistage arrangement for countercurrent separation and methods of operating same | Anton Schoengen, Johann H. Shroeder, Jorg Porschen | 1988-07-05 |
| 4750993 | Process and apparatus for the separation of metallic components from nonmetallic components of a mixture | Guido Ropertz | 1988-06-14 |
| D294363 | Hydrocyclone centrifugal separator | — | 1988-02-23 |
| 4707274 | Multistage arrangement for countercurrent separation and methods of operating same | Anton Schoengen, Johann H. Schroeder, Jorg Porschen | 1987-11-17 |