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Patent applications and USPTO patent grants for Ernstorfer; Norbert.The latest application filed is for "collector for sulfidic ores".
Patent | Date |
---|---|
Collector for sulfidic ores Grant 7,695,634 - Hesse , et al. April 13, 2 | 2010-04-13 |
Collector for sulfide ores Grant 7,553,984 - Rau , et al. June 30, 2 | 2009-06-30 |
Collector for Sulfidic Ores App 20070221878 - Hesse; Heinrich ;   et al. | 2007-09-27 |
Collector for sulfide ores App 20070181467 - Rau; Tobias ;   et al. | 2007-08-09 |
Collecting agent for sulphidic ores, the production and use thereof Grant 7,104,404 - Rau , et al. September 12, 2 | 2006-09-12 |
Collector for non iron metal sulphide preparation Grant 7,051,881 - Hesse , et al. May 30, 2 | 2006-05-30 |
Collecting agent for sulphidic ores, the production and use thereof App 20050263442 - Rau, Tobias ;   et al. | 2005-12-01 |
Collector for non iron metal sulphide preparation App 20040099836 - Hesse, Heinrich ;   et al. | 2004-05-27 |
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