Issued Patents All Time
Showing 26–43 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6090977 | Continuous heterogeneously catalyzed gas-phase partial oxidation of an organic compound | Werner Hefner, Otto Machhammer, Hans-Peter Neumann, Wilhelm Ruppel, Herbert Vogel | 2000-07-18 |
| 6084126 | Oxidation using multimetal molybdenum and vanadium oxides | Hartmut Hibst, Laszlo Marosi | 2000-07-04 |
| 5910608 | Catalyst consisting of a hollow cylindrical carrier having a catalytically active oxide material applied to the outer surface of the carrier, and process for using said catalyst | Peter Weidlich, Gerd Linden | 1999-06-08 |
| 5885922 | Multimetal oxide materials | Hartmut Hibst, Laszlo Marosi | 1999-03-23 |
| 5821390 | Catalytic gas-phase oxidation of propene to acrolein | Wilhelm Ruppel, Ulrike Wegerle, Ulrich Hammon | 1998-10-13 |
| 5807531 | Multimetal oxides | Hartmut Hibst, Laszlo Marosi | 1998-09-15 |
| 5739391 | Catalytic gas-phase oxidation of acrolein to acrylic acid | Wilhelm Ruppel, Ulrike Wegerle, Ulrich Hammon | 1998-04-14 |
| 5705684 | Preparation of acrolein, acrylic acid or a mixture thereof from propane | Werner Hefner, Otto Machhammer, Hans-Peter Neumann, Wilhelm Ruppel, Herbert Vogel | 1998-01-06 |
| 5686373 | Polymetal oxide materials | Friedrich-Georg Martin, Hartmut Hibst, Laszlo Marosi, Veronika Kohl | 1997-11-11 |
| 5684188 | Continuous heterogeneously catalyzed gas-phase oxidation of propylene to acrolein, acrylic acid or a mixture thereof | Werner Hefner, Otto Machhammer, Hans-Peter Neumann, Wilhelm Ruppel, Herbert Vogel | 1997-11-04 |
| 5677261 | Preparation of a catalyst consisting of a carrier and a catalytically active oxide material applied to the surface of the carrier | Peter Weidlich, Gerd Linden | 1997-10-14 |
| 5637546 | Preparation of catalytically active poly-metal oxide materials which contain the elements V and Mo in oxide form as basic components | Ulrich Hammon, Peter Weidlich | 1997-06-10 |
| 5583086 | Cesium containing multimetal oxide catalyst compositions for the preparation of methacrolein by gas-phase-catalytic oxidation | Hans-Peter Neumann, Herbert Exner | 1996-12-10 |
| 5569636 | Multimetal oxide compositions | Friedrich-Georg Martin, Hartmut Hibst | 1996-10-29 |
| 5521137 | Multimetal oxide compositions | Friedrich-Georg Martin | 1996-05-28 |
| 5512525 | Regeneration of spent multimetal oxide oxidation catalysts from the catalytic gas-phase oxidation of lower organic compounds | Ulrich Hammon, Peter Weidlich, Walter Doerflinger | 1996-04-30 |
| 5493052 | Multimetal oxide compositions | Peter Weidlich | 1996-02-20 |
| 5446004 | Multimetal oxide compositions | Peter Weidlich | 1995-08-29 |