Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5279424 | Floatation apparatus for removal of distrubing substances, especially printing ink from waste paper suspensions | Herbert Britz, Anton Selbherr | 1994-01-18 |
| 5257698 | Cleaner for stock suspensions | Alfred Christ, Herbert Holik, Wolfgang Siewert | 1993-11-02 |
| 5236090 | Flotation-deinking-device | Herbert Britz | 1993-08-17 |
| 4620926 | Flotation apparatus for flotation of fibrous stock suspension recovered from waste paper | Herbert Holik, Woflgang Siewert, Anton Selbherr | 1986-11-04 |
| 4431482 | Dispersion apparatus for the preparation of waste paper | Wolfgang Heinbockel, Harald Selder | 1984-02-14 |