Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6369277 | Selective liquid-phase hydrogenation of &agr;,&bgr;-unsaturated carbonyl compounds | Gerd Kaibel, Werner Aquila, Hartwig Fuchs, Guenter Wegner, Manfred Stroezel | 2002-04-09 |
| 5063194 | Palladium catalyst | Lothar Arnold, Paul Grafen | 1991-11-05 |
| 4780448 | Preparation of a catalyst containing copper and silica | Rolf Fischer, Klaus-Dieter Malsch, Wolfgang Reiss, Rolf Schnabel, Hans-Martin Weitz | 1988-10-25 |
| 4766237 | Preparation of 6-aminocaproates | Hans-Martin Hutmacher, Franz Merger, Rolf Fischer, Uwe Vagt, Heinz-Walter Schneider +3 more | 1988-08-23 |
| 4731445 | Preparation of epsilon-caprolactam | Hans-Martin Hutmacher, Franz Merger, Rolf Fischer, Uwe Vagt, Wolfgang Harder +1 more | 1988-03-15 |
| 4730041 | Preparation of .epsilon.-caprolactams | Hans-Martin Hutmacher, Franz Merger, Rolf Fischer, Uwe Vagt, Wolfgang Harder +3 more | 1988-03-08 |
| 4686202 | Preparation of catalysts for the detoxification of waste gases | — | 1987-08-11 |
| 4677230 | Preparation of 2-methyl-2-alkenals | Leopold Hupfer, Franz Merger, Rolf Fischer | 1987-06-30 |
| 4638085 | Preparation of methyl methacrylate from methacrolein | Gerd Duembgen, Gerd Fouquet, Richard Krabetz, Franz Merger, Friedbert Nees | 1987-01-20 |
| 4623533 | Desulfurization of H.sub.2 S-containing gases | Hans Gettert, Knut Kaempfer | 1986-11-18 |
| 4623668 | Preparation of methanol | Gerd Duembgen, Wolfgang Pies, Gottfried Schlichthaerle, Guenter Weber | 1986-11-18 |
| 4600799 | Preparation of trimethylhydroquinone | Peter Tavs, Harald Laas, Wolf-Karlo Aders | 1986-07-15 |
| 4521387 | Purification of gases containing CO and/or CO.sub.2 | Hans Gettert, Knut Kaempfer | 1985-06-04 |
| 4507274 | Desulfurization of H.sub.2 S-containing gases | Hans Gettert, Knut Kaempfer | 1985-03-26 |
| 4436833 | Preparation of methanol synthesis catalyst comprising zinc, copper and aluminum | Karl-Heinz Gruendler, Laszlo Marosi, Matthias Schwarzmann, Bruno Triebskorn, Guenter Zirker | 1984-03-13 |
| 4393251 | Preparation of propanediols using a copper-and zinc containing hydrogenation catalyst | Leopold Hupfer, Franz Merger, Ernest Miesen, Juergen Paetsch, Guenter Zirker | 1983-07-12 |
| 4386018 | Hydrogenation catalysts for the preparation of propanediols | Franz Merger, Ernest Miesen, Wolfgang Schroeder, Karl Baer, Juergen Paetsch +1 more | 1983-05-31 |
| 4386219 | Hydrogenation catalysts for the preparation of propanediols and processes for the preparation of propanediols, using such catalysts | Franz Merger, Ernest Miesen, Wolfgang Schroeder, Karl Baer, Juergen Paetsch +1 more | 1983-05-31 |
| 4298766 | Preparation of 2-methyl-pentane-2,4-diol | Karl Baur, Rolf Platz, Joachim Stabenow | 1981-11-03 |
| 4192807 | Manufacture of .gamma.-butyrolactone from maleic anhydride | Gerd Duembgen, Helmut Glietenberg, Ernest Miesen, Matthias Schwarzmann | 1980-03-11 |