Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11944976 | Vertical ball mill, stator segment for a vertical ball mill and method for maintaining a vertical ball mill | Norbert Patzelt | 2024-04-02 |
| 10232380 | Extraction mechanism for comminution device | David Dustin Udy | 2019-03-19 |
| 9770718 | Roller mill and method for milling brittle milling material | Felix HEINICKE, Wolfgang Partsch, Johann Asneimer | 2017-09-26 |
| 8316543 | Method for reconditioning a used grinding roller | Norbert Patzelt, Herbert Pingel | 2012-11-27 |
| 7946518 | Grinding roller and method for the reconditioning thereof | Norbert Patzelt, Herbert Pingel | 2011-05-24 |
| 7510135 | Grinding roll | Egbert Burchardt, Rene Klymowsky, Norbert Patzelt | 2009-03-31 |
| 6357683 | Roller grinding mill | Norbert Patzelt | 2002-03-19 |
| 5985221 | Method of recovering precious metals | — | 1999-11-16 |
| 5897063 | Method of comminuting ore material | Norbert Patzelt | 1999-04-27 |
| 5642863 | Method of extracting metals from ore material | Norbert Patzelt | 1997-07-01 |
| 5522557 | Roll mill | Peter Tiggesbaumker, Helmut Lucke, Reinhold Giesemann, Gerhard Blatton | 1996-06-04 |