Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6352660 | Preparation of composite fibers and diaphragms | Holger Friedrich, Ulrich Bröckel, Dieter Schlafer, Kurt Hecky, Peter Palm | 2002-03-05 |
| 5919348 | Modification of the flow resistance of diaphragms | Holger Friedrich, Bernd Leutner, Dieter Schlafer, Kurt Hecky | 1999-07-06 |
| 5077023 | Reduction in the rate of oxidation of sulfite solutions | Bernd Leutner, Paul-Michael Bever, Matthias Kraume | 1991-12-31 |
| 4933004 | Preparation of acicular ferromagnetic metal particles of substantially iron | Werner Steck, Jenoe Kovacs, Rainer Feser, Helmut Jakusch | 1990-06-12 |
| 4879102 | Regeneration of wash solutions containing Fe(II) and Fe(III) chelate complexes | Bernd Leutner, Siegfried Schreiner | 1989-11-07 |