Issued Patents All Time
Showing 26–44 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4503281 | Preparation of C.sub.2 -C.sub.4 -olefins from methanol/dimethyl ether | Wolfgang Hoelderich, Wolf D. Mross | 1985-03-05 |
| 4489170 | Oxidation catalyst, especially for the preparation of methacrylic acid by gas phase oxidation of methacrolein | Richard Krabetz | 1984-12-18 |
| 4487962 | Preparation of methacrylic acid by gas phase oxidation of methacrolein | Richard Krabetz, Franz Merger | 1984-12-11 |
| 4486617 | Preparation of C.sub.2 -C.sub.4 -olefins from methanol/dimethyl ether | Wolfgang Hoelderich, Wolf D. Mross | 1984-12-04 |
| 4474741 | Preparation of a crystalline aluminosilicate (zeolite) | Wolfgang Hoelderich, Laszlo Marosi, Wolf D. Mross | 1984-10-02 |
| 4456582 | Manufacture of nitrogen-containing crystalline metal silicates having a zeolite structure | Laszlo Marosi, Joachim Stabenow | 1984-06-26 |
| 4436833 | Preparation of methanol synthesis catalyst comprising zinc, copper and aluminum | Franz J. Broecker, Karl-Heinz Gruendler, Laszlo Marosi, Bruno Triebskorn, Guenter Zirker | 1984-03-13 |
| 4434314 | Preparation of olefins from methanol/dimethyl ether | Wolfgang Hoelderich, Wolf D. Mross | 1984-02-28 |
| 4433188 | Preparation of olefins from methanol and/or dimethyl ether | Wolfgang Hoelderich, Wolf D. Mross | 1984-02-21 |
| 4423273 | Preparation of olefins from methaol and/or dimethyl ether | Wolfgang Hoelderich, Wolf D. Mross | 1983-12-27 |
| 4409128 | Oxidation catalyst, especially for the preparation of methacrylic acid by gas phase oxidation of methacrolein | Richard Krabetz, Franz Merger | 1983-10-11 |
| 4404175 | Preparation of zeolites | Laszlo Marosi, Hans-Ulrich Schlimper, Joachim Stabenow | 1983-09-13 |
| 4401637 | Crystalline isotactic zeolites and their preparation | Laszlo Marosi, Joachim Stabenow | 1983-08-30 |
| 4324699 | Supported catalysts and their treatment for the preparation of ethylene oxide | Wolf D. Mross, Eckart Titzenthaler, Juergen Koopmann, Volker Vogt | 1982-04-13 |
| 4300911 | Method for preparing crystalline SiO.sub.2 modification | Laszlo Marosi, Joachim Stabenow | 1981-11-17 |
| 4278562 | Manufacture of an ethylene oxide catalyst | Wolf D. Mross, Eckart Titzenthaler, Juergen Koopmann, Volker Vogt | 1981-07-14 |
| 4252688 | Manufacture of bifunctional catalysts for the conversion of hydrocarbons | Ewald Gallei, Laszlo Marosi, Ernst Lorenz | 1981-02-24 |
| 4212772 | Catalyst for the manufacture of ethylene oxide | Wolf D. Mross, Eckart Titzenthaler, Juergen Koopmann | 1980-07-15 |
| 4192807 | Manufacture of .gamma.-butyrolactone from maleic anhydride | Franz J. Broecker, Gerd Duembgen, Helmut Glietenberg, Ernest Miesen | 1980-03-11 |