Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8268037 | Recovery of molybdenum from molybdenum bearing sulfide materials by bioleaching in the presence of iron | Wolfgang Kummer, James Gregory Olson, Thomas R. Clark | 2012-09-18 |
| 7393969 | Particular calixarenes method for production and use thereof | Michael Traving, Werner Bäcker, Wolfgang Kummer, Rainer Ludwig | 2008-07-01 |
| 6709641 | Method for extracting anions | Wolfgang Mathy | 2004-03-23 |
| 6113868 | Process for treating tungstate solutions to reduce molybdenum impurity and other impurity content | Wolfgang Mathy | 2000-09-05 |
| 6019813 | Cobalt metal agglomerates, process for producing the same and their use | Astrid Gorge, Katrin Plaga, Armin Olbrich, Dirk Naumann, Josef Schmoll | 2000-02-01 |
| 5891407 | Process for producing pure ammonium metallates | Wolfgang Mathy | 1999-04-06 |
| 5676817 | Process for the production of pure solutions of tungsten and molybdenum | Wolfgang Mathy | 1997-10-14 |
| 4981569 | Electric-field emulsion-breaking device | Karl Schugerl | 1991-01-01 |
| 4904412 | Emulsion-forming composition | Karl Schugerl | 1990-02-27 |
| 4775479 | Process for selectively recovering Ge and as from aqueous solutions | Karl Schugerl | 1988-10-04 |