Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7179347 | Method for fiber stock preparation | Joerg Rheims, Klaus Doelle, Ronald Sigl, Werner Witek | 2007-02-20 |
| 7169258 | Process and a fluffer device for treatment of a fiber stock suspension | Jorg Rheims, Klaus Doelle, Werner Witek, Shawn Flanigan, Robert J. Matz | 2007-01-30 |
| 6881298 | Process for loading fibers with calcium carbonate in a plurality of reactors | Jorg Rheims, Klaus Doelle, Werner Witek | 2005-04-19 |
| 6755941 | Apparatus for loading fibers with calcium carbonate | J{overscore (o)}rg Rheims, Klaus Doelle, Werner Witek | 2004-06-29 |
| 6599390 | Process for loading fibers with calcium carbonate in a plurality of reactors | Jorg Rheims, Klaus Doelle, Werner Witek | 2003-07-29 |
| 6589389 | Test method for determining bleed-throughs in old corrugated container fiber pulp | Bangji Cao | 2003-07-08 |
| 6537425 | Process for loading fibers with calcium carbonate | Jorg Rheims, Klaus Doelle, Werner Witek | 2003-03-25 |
| 6533895 | Apparatus and method for chemically loading fibers in a fiber suspension | Klaus Doelle | 2003-03-18 |
| 6508422 | Pulper for a fiber stock preparation system | Steve Wickensberg, Mike Van Rossum, Mike Theobald, Kurt Lorenz, Klaus Doelle | 2003-01-21 |
| 6503466 | Apparatus and method for chemically loading fibers in a fiber suspension | Klaus Doelle, Kurt Lorenz, Werner Witek, Robert J. Matz | 2003-01-07 |
| 6471825 | Method for deflocculating and chemically loading fibers in a fiber suspension with calcium carbonate | Klaus Doelle, Kurt Lorenz, Werner Witek, Robert J. Matz | 2002-10-29 |
| 6458241 | Apparatus for chemically loading fibers in a fiber suspension | Klaus Doelle | 2002-10-01 |
| 6425982 | System for removing bleed-throughs from old corrugated container fiber pulp | Bangji Cao | 2002-07-30 |
| 6413365 | Method of loading a fiber suspension with calcium carbonate | Klaus Doelle | 2002-07-02 |
| 6394279 | Flotation machine for a fiber suspension and method of using same | Klaus Doelle, Werner Witek, Bangji Cao | 2002-05-28 |
| 6395131 | Flotation machine for a fiber suspension and method of using same | Klaus Doelle, Werner Witek, Bangji Cao | 2002-05-28 |
| 6228212 | Method of removing wax from cellulosic fiber used in a fiber suspension for a paper-making machine | Bangij Cao | 2001-05-08 |
| 5996604 | Apparatus and method for providing process water used for making or processing a fiber suspension | Klaus Doelle, Kurt Lorenz, Werner Witek, Robert J. Matz | 1999-12-07 |