Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4784764 | Arrangement for the flocculation of flocculatable substances in suspensions, particularly for the purification of the backwater of deinking installations for waste paper processing | Hans-Hermann Kleinschnittger, Wolfgang Bassler, Wolfgang Siewert | 1988-11-15 |
| 4538765 | Method for defiberizing waste paper in a thick stock range | Hermann Mayr, Gerhard Lambrecht, Wolfgang Heinbockel, Wolfgang Siewert, Josef Maier | 1985-09-03 |
| 4402463 | Grinding apparatus for a suspension of fibres for paper manufacturing | Rainer Meisenberg | 1983-09-06 |
| 4283275 | Apparatus for processing waste paper | Wolfgang Heinbockel, Wolfgang Siewert, Gerhard Lambrecht | 1981-08-11 |
| 4216918 | Fiberizer | Wolfgang Siewert | 1980-08-12 |