Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6166248 | Process for the separation of acrylic acid | Bernd Heida, Ulrich Hammon, Albrecht Dams | 2000-12-26 |
| 5788895 | Mass transfer in plate columns and apparatus for this purpose | Gerhard Altinger, Horst Egly, Rudolf Kaiser | 1998-08-04 |
| 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, Gerd Duembgen, Ulrich Hammon, Richard Krabetz, Franz Merger +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, Gerd Duembgen, Ulrich Hammon, Richard Krabetz, Franz Merger +2 more | 1992-12-22 |
| 5087744 | Preparation of methacrylic acid | Richard Krabetz, Gerd Duembgen, Franz Merger, Michael Jaeger, Herbert Vogal | 1992-02-11 |
| 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 |