Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5244502 | Continuously operating centrifuge | Helmut Schaper | 1993-09-14 |
| 4804419 | Continuously operable sugar centrifuge | Helmut Schaper | 1989-02-14 |
| 4802925 | Continuously operable centrifuge for mashing and centrifuging of sugar massecuite | Helmut Schaper | 1989-02-07 |
| 4718945 | Sugar centrifuge | Helmut Schaper | 1988-01-12 |
| 4443266 | Continuously operating sugar centrifuge | Helmut Schaper | 1984-04-17 |
| 4332621 | Continuously operable centrifugal for mixing and curing sugar massecuites | Helmut Schaper, Joachim Schueller | 1982-06-01 |
| 4308075 | Continuously operable sugar centrifugal | Volkmar Hentschel, Helmut Schaper, Joachim Schueller, Gustav Warner, Erwin Zeichner | 1981-12-29 |
| 4205999 | Continuously operating centrifugal | Erwin Zeichner, Hermann Luehrs | 1980-06-03 |