Issued Patents All Time
Showing 1–25 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6623572 | Pulper with extraction plate assembly having removable inserts and method of manufacturing same | Klaus Doelle, Steve Richard Wickesberg | 2003-09-23 |
| 6585116 | Screening apparatus for fiber suspension | Klaus Doelle, David W. Hostetter | 2003-07-01 |
| 6508422 | Pulper for a fiber stock preparation system | Steve Wickensberg, Mike Van Rossum, Mike Theobald, Klaus Doelle, Oliver Heise | 2003-01-21 |
| 6503466 | Apparatus and method for chemically loading fibers in a fiber suspension | Klaus Doelle, Oliver Heise, 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, Oliver Heise, Werner Witek, Robert J. Matz | 2002-10-29 |
| 6395132 | Washing system and washer for a fiber suspension | Klaus Doelle, Robert J. Matz | 2002-05-28 |
| 6254729 | Pulper with extraction plate assembly having removable inserts and method of manufacturing same | Klaus Doelle, Steve Richard Wickesberg | 2001-07-03 |
| 5996604 | Apparatus and method for providing process water used for making or processing a fiber suspension | Klaus Doelle, Oliver Heise, Werner Witek, Robert J. Matz | 1999-12-07 |
| 5968357 | Screen basket having a removable and replaceable cylindrical mesh liner | Klaus Doelle | 1999-10-19 |
| 4832795 | Coke dry cooling chamber | Horst Dungs, Manfred Rudel, Klaus-Dieter Kemper | 1989-05-23 |
| 4792382 | Process for removing dust from dry cooled coke | Horst Dungs, Klaus Mrongowius, Jost-Wilfried Gehrhardt | 1988-12-20 |
| 4701243 | Method for cooling and dedusting dry cooled coke | Horst Dungs, Karl-Hans Auge | 1987-10-20 |
| 4699693 | Apparatus for dry cooling red-hot coke | Gerd Nashan, Josef Volmari, Horst Dungs, Dieter Breidenbach | 1987-10-13 |
| 4690160 | Hydraulically operated high-pressure piston pump | Norbert Walther, August Lucas, Engelbert Bruns | 1987-09-01 |
| 4683030 | Method for carbonizing cold-compacted briquettes | Heinrich Weber, Horst Dungs | 1987-07-28 |
| 4668344 | Method for cooling coke and generating superheated high pressure steam | Horst Dungs, Gerd Nashan, Dieter Breidenbach, Josef Volmark | 1987-05-26 |
| 4668343 | Method for dry cooling red-hot coke | Gerd Nashan, Josef Volmari, Horst Dungs, Dieter Breidenbach | 1987-05-26 |
| 4662895 | Method of cooling and gasifying retort coal | Heinrich Weber, Horst Dungs | 1987-05-05 |
| 4647341 | Dry coke cooling plant | Horst Dungs, Gerd Nashan, Dieter Breidenbach, Josef Volmari | 1987-03-03 |
| 4588479 | Device for cooling incandescent coke | Heinrich Weber, Horst Dungs | 1986-05-13 |
| 4574744 | Waste heat boiler system, and method of generating superheated high pressure steam | Horst Dungs, Gerd Nashan, Dieter Breidenbach, Josef Volmark | 1986-03-11 |
| 4559107 | Method for dry cooling coke | Engelbert Bruns, Gerd Osterholt | 1985-12-17 |
| 4556455 | Method of charging dry coke cooling pit using sluice | Heinrich Weber, Horst Dungs, Engelbert Bruns, Gerd Osterholt | 1985-12-03 |
| 4544451 | Apparatus with two-stage heating for carbonizing cold-compacted briquettes | Heinrich Weber, Horst Dungs | 1985-10-01 |
| 4521279 | Apparatus for dry cooling coke | Engelbert Bruns, Gerd Osterholt | 1985-06-04 |