Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6624284 | Fiberplates made of polyamines or polyamine-containing aminoplast resins as binding agents | Norbert Biedermann, Stephan Weinkötz, Günter Scherr, Franz J. Wolf, Ralph LEHNEN | 2003-09-23 |
| 4584412 | Preparation of formaldehyde | Albrecht Aicher, Norbert Petri, Walter Pitteroff, Gunter Reuss, Hans Schreiber +1 more | 1986-04-22 |
| 4242282 | Preparation of glyoxal | Hans Diem, Christian Dudeck, Guenther Matthias, Norbert Petri | 1980-12-30 |
| 4235823 | Preparation of diketones | Christian Dudeck, Karl-Heinz Ross, Werner Fliege, Norbert Petri, Hans Diem +2 more | 1980-11-25 |
| 4233246 | Manufacture of aliphatic hydroxycarbonyl compounds etherified with aliphatic groups | Christian Dudeck, Norbert Petri, Hans Diem, Werner Fliege, Bernd Meissner +2 more | 1980-11-11 |
| 4229590 | Preparation of alkyl pyruvates | Christian Dudeck, Bernd Meissner, Hans Diem, Werner Fliege, Norbert Petri +1 more | 1980-10-21 |