Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4925823 | Process and catalyst for the preparation of methacrylic acid | Richard Krabetz, Gerd Duembgen, Franz Merger, Gerd Fouquet | 1990-05-15 |
| 4667044 | Process for the production of aromatic glycidyl esters | Peter Werle, Gunther Reissmann, Wolfgang Merk | 1987-05-19 |
| 4638085 | Preparation of methyl methacrylate from methacrolein | Franz J. Broecker, Gerd Duembgen, Gerd Fouquet, Richard Krabetz, Franz Merger | 1987-01-20 |
| 4595778 | Preparation of methacrylic acid and catalyst therefor | Gerd Duembgen, Gerd Fouquet, Richard Krabetz, Franz Merger | 1986-06-17 |
| 4520125 | Catalyst for the preparation of methyl methacrylate | Karl Baer, Peter Bassler, Gerd Duembgen, Gerd Fouquet, Richard Krabetz +1 more | 1985-05-28 |
| 4496770 | Process for the preparation of .alpha.-alkylacroleins | Gerd Duembgen, Gerd Fouquet, Richard Krabetz, Ekhart Lucas, Franz Merger | 1985-01-29 |