Issued Patents All Time
Showing 26–37 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6394279 | Flotation machine for a fiber suspension and method of using same | Werner Witek, Oliver Heise, Bangji Cao | 2002-05-28 |
| 6395131 | Flotation machine for a fiber suspension and method of using same | Werner Witek, Oliver Heise, Bangji Cao | 2002-05-28 |
| 6395132 | Washing system and washer for a fiber suspension | Kurt Lorenz, Robert J. Matz | 2002-05-28 |
| 6358367 | Pulping system for a paper machine | Werner Witek, Robert J. Matz | 2002-03-19 |
| 6355138 | Method of chemically loading fibers in a fiber suspension | — | 2002-03-12 |
| 6267847 | Pulper for a stock preparation system | Robert J. Matz | 2001-07-31 |
| 6254729 | Pulper with extraction plate assembly having removable inserts and method of manufacturing same | Kurt Lorenz, Steve Richard Wickesberg | 2001-07-03 |
| 6210533 | Revolver valve for discharging a pressurized vessel in a fiber stock preparation system | — | 2001-04-03 |
| 6151931 | Effluent shower for pulp washer | — | 2000-11-28 |
| 6095442 | Perforated drum in a stock preparation system for screening foreign matter from recycled paper | — | 2000-08-01 |
| 5996604 | Apparatus and method for providing process water used for making or processing a fiber suspension | Kurt Lorenz, Oliver Heise, Werner Witek, Robert J. Matz | 1999-12-07 |
| 5968357 | Screen basket having a removable and replaceable cylindrical mesh liner | Kurt Lorenz | 1999-10-19 |