| 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 |
