Issued Patents All Time
Showing 76–100 of 100 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6207043 | Method of preparing low-sulphur aliphatic compounds | Maximilian Vicari, Marc Walter, Siegmar Maassen | 2001-03-27 |
| 6197720 | Palladium clusters and their use as catalysts | Daniel Heineke, Martin Fischer, Guenter Schmid, Monika Baeumle | 2001-03-06 |
| 6118034 | Process for the selective hydrogenation of dienes in reformate flows | Maximilian Vicari, Marc Walter, Hans-Joachim Muller, Germain Kons, Stephan Dilling +1 more | 2000-09-12 |
| 6074472 | Hydrolytic preparation of titanium dioxide pigments | Harald Jachow, Claudius Kormann, Wilma M. Dausch, Karin Sperling, Horst Westenfelder | 2000-06-13 |
| 6024890 | Ferromagnetic pigments | Peter Poganiuch, Wilma M. Dausch, Reinhard Korner, Werner Wimbersky | 2000-02-15 |
| 5935896 | Catalyst supports and catalysts for dehydrocyanation reactions and processes for producing them | Jacques Dupuis, Peter Trubenbach, Michael Kroner | 1999-08-10 |
| 5929260 | Hydrogenation using magnetic catalysts | Claudius Kormann, Thomas Wettling, Jochem Henkelmann | 1999-07-27 |
| 5866734 | Hydrogenation process | Klemens Flick, Cristina Freire Erdbrugger, Franz Josef Brocker, Gerald Meyer, Christof Herion | 1999-02-02 |
| 5769937 | High-purity ferromagnetic iron oxide pigments | Claudius Kormann, Reinhold Schlegel | 1998-06-23 |
| 5569409 | Finely divided acicular magnetic modified chromium dioxide | Harald Jachow, Reinhard K orner, Ronald J. Veitch, Helmut Jakusch, Bernd H oppner +2 more | 1996-10-29 |
| 5505880 | Magnetorheological Fluid | Claudius Kormann, Martin Laun | 1996-04-09 |
| 5500141 | Magnetic ink concentrate | Claudius Kormann, Friedrich-Wilhelm Raulfs, Karin H. Beck | 1996-03-19 |
| 5484628 | Preparation of acicular cobalt-containing magnetic iron oxide | Ronald J. Veitch, Reinhard Korner, Emil Pfannebecker, Bernd Hoppner | 1996-01-16 |
| 5451253 | Preparation of transparent yellow iron oxide pigments | Paul Klingelhoefer, Christoph Schwidetzky, Henning Wienand, Norbert Mronga, Michael W. Nebel | 1995-09-19 |
| 5378383 | Process for preparing modified chromium dioxide | Harald Jachow, Reinhard Koerner, Norbert Mueller, Rudi Lehnert, Manfred Ohlinger +4 more | 1995-01-03 |
| 5250207 | Magnetic ink concentrate | Claudius Kormann, Friedrich-Wilhelm Raulfs, Karin H. Beck | 1993-10-05 |
| 5183709 | Acicular cobalt-modified iron oxides and their preparation | Ronald J. Veitch, Helmut Auweter | 1993-02-02 |
| 5096779 | Chromium dioxide material, its preparation and magnetic recording media containing this chromium dioxide material | Michael Mueller, Helmut Auweter, Rainer Feser, Werner Huebner, Norbert Mueller +2 more | 1992-03-17 |
| 5064549 | Preparation of stabilized chromium dioxide with sodium tetracarbonylferrate | Michael Mueller, Helmut Auweter, Rainer Feser, Bernhard Boettcher, Norbert Mueller +1 more | 1991-11-12 |
| 5051201 | Preparation of finely divided hexagonal ferrite powder | Michael Mueller, Volker Arndt | 1991-09-24 |
| 5030371 | Process for preparing acicular ferromagnetic material consisting essentially of iron-containing chromium dioxide | Michael Mueller, Helmut Auweter, Rainer Feser, Rudi Lehnert, Norbert Mueller +1 more | 1991-07-09 |
| 4960462 | Acicular, ferromagnetic metal particles essentially consisting of iron, and their preparation | Michael Mueller, Kalus-Dieter Hoppe, Werner Steck, Helmut Auweter, Rainer Feser | 1990-10-02 |
| 4913890 | Preparation of acicular .alpha.-Fe.sub.2 O.sub.3 | Volker Arndt, Helmut Auweter, Rainer Feser | 1990-04-03 |
| 4770903 | Preparation of cobalt-containing, acicular, magnetic iron oxides | Werner Steck, Wilhelm Schloesser, Rainer Feser | 1988-09-13 |
| 4729785 | Preparation of acicular ferromagnetic metal particles consisting essentially of iron | Werner Steck, Peter Rudolf, Guenter Vaeth, Helmut Jakusch, Jenoe Kovacs | 1988-03-08 |