Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5221767 | Compositions of the formula Mo.sub.12 P.sub.a V.sub.b X.sup.1 c X.sup.2 d X.sup.3 e Sb.sub.f Re.sub.g S.sub.h O.sub.n | Karl-Heinz Boehning, Ulrich Hammon, Richard Krabetz, Franz Merger, Matthias Schwarzmann +2 more | 1993-06-22 |
| 5173468 | Compositions of the formula MO.sub.12 P.sub.a V.sub.b X.sup.1.sub.c X.sup.2.sub.d X.sup.3.sub.e Sb.sub.f Re.sub.g S.sub.h O.sub.n | Karl-Heinz Boehning, Ulrich Hammon, Richard Krabetz, Franz Merger, Matthias Schwarzmann +2 more | 1992-12-22 |
| 5087744 | Preparation of methacrylic acid | Richard Krabetz, Franz Merger, Michael Jaeger, Fritz Thiessen, Herbert Vogal | 1992-02-11 |
| 4925823 | Process and catalyst for the preparation of methacrylic acid | Richard Krabetz, Friedbert Nees, Franz Merger, Gerd Fouquet | 1990-05-15 |
| 4638085 | Preparation of methyl methacrylate from methacrolein | Franz J. Broecker, Gerd Fouquet, Richard Krabetz, Franz Merger, Friedbert Nees | 1987-01-20 |
| 4623668 | Preparation of methanol | Franz J. Broecker, Wolfgang Pies, Gottfried Schlichthaerle, Guenter Weber | 1986-11-18 |
| 4595778 | Preparation of methacrylic acid and catalyst therefor | Gerd Fouquet, Richard Krabetz, Franz Merger, Friedbert Nees | 1986-06-17 |
| 4520125 | Catalyst for the preparation of methyl methacrylate | Karl Baer, Peter Bassler, Gerd Fouquet, Richard Krabetz, Franz Merger +1 more | 1985-05-28 |
| 4496770 | Process for the preparation of .alpha.-alkylacroleins | Gerd Fouquet, Richard Krabetz, Ekhart Lucas, Franz Merger, Friedbert Nees | 1985-01-29 |
| 4301126 | Process for destroying phosgene | Erfried Voelkl, Gerhard Pforr | 1981-11-17 |
| 4298763 | Preparation of .alpha.,.beta.-olefinically unsaturated aldehydes of 3 or 4 carbon atoms | Heinz Engelbach, Richard Krabetz, Carl-Heinz Willersinn, Walter Beitelschmidt | 1981-11-03 |
| 4259211 | Catalyst for the oxidation of acrolein and methacrolein to acrylic acid and methacrylic acid, respectively | Richard Krabetz, Walter Herrmann, Norbert Scholz, Heinz Engelbach, Gerd-Juergen Engert +2 more | 1981-03-31 |
| 4192807 | Manufacture of .gamma.-butyrolactone from maleic anhydride | Franz J. Broecker, Helmut Glietenberg, Ernest Miesen, Matthias Schwarzmann | 1980-03-11 |