Zeller; Siegfried
Patent Applications and Registrations
Patent applications and USPTO patent grants for Zeller; Siegfried.The latest application filed is for "method for reducing a praticulate material containing a metal, especially iron ore".
- Zeller; Siegfried - Leonding AT
- Zeller; Siegfried - Oberpframmern DE
- Zeller; Siegfried - Linz AT
| Patent | Date |
|---|---|
| Method for reducing a particulate material containing a metal, especially iron ore Grant 7,597,739 - Kepplinger , et al. October 6, 2 | 2009-10-06 |
| Method for reducing a praticulate material containing a metal, especially iron ore App 20070245853 - Kepplinger; Leopold Werner ; et al. | 2007-10-25 |
| Process for reducing metal-containing, in particular iron-ore-containing, particulate material App 20040237718 - Kepplinger, Leopold Werner ; et al. | 2004-12-02 |
| Process and plant for the direct reduction of particulate iron-oxide-containing material App 20020117024 - Zeller, Siegfried ; et al. | 2002-08-29 |
| Method and device for reducing vibrations Grant 6,427,815 - Zeller August 6, 2 | 2002-08-06 |
| Integrated steel mill arrangement Grant 4,822,411 - Standler , et al. April 18, 1 | 1989-04-18 |
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