Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5079367 | Preparation of 3-hydrocarbyl substituted pyridines | Wolfgang Hoelderich, Norbert Goetz | 1992-01-07 |
| 4925823 | Process and catalyst for the preparation of methacrylic acid | Richard Krabetz, Gerd Duembgen, Friedbert Nees, Franz Merger | 1990-05-15 |
| 4638085 | Preparation of methyl methacrylate from methacrolein | Franz J. Broecker, Gerd Duembgen, Richard Krabetz, Franz Merger, Friedbert Nees | 1987-01-20 |
| 4595778 | Preparation of methacrylic acid and catalyst therefor | Gerd Duembgen, Richard Krabetz, Franz Merger, Friedbert Nees | 1986-06-17 |
| 4560822 | Preparation of dienes by dehydration of aldehydes | Wolfgang Hoelderich, Franz Merger, Wolf D. Mross | 1985-12-24 |
| 4520125 | Catalyst for the preparation of methyl methacrylate | Karl Baer, Peter Bassler, Gerd Duembgen, Richard Krabetz, Franz Merger +1 more | 1985-05-28 |
| 4496770 | Process for the preparation of .alpha.-alkylacroleins | Gerd Duembgen, Richard Krabetz, Ekhart Lucas, Franz Merger, Friedbert Nees | 1985-01-29 |
| 4384120 | Preparation of pyridines | Franz Merger | 1983-05-17 |
| 4354045 | Preparation of formaldehyde | Franz Merger | 1982-10-12 |
| 4336403 | Preparation of methyl methacrylate by reaction of methyl propionate and methanol | Franz Merger | 1982-06-22 |
| 4226780 | Manufacture of propylene oxide | Franz Merger, Karl Baer | 1980-10-07 |