Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6140382 | Process for the preparation of isocyanates or isocyanate mixtures useful for the preparation of polyurethane foams | Herbert Gebauer, Otto Immel | 2000-10-31 |
| 6080890 | Production of aromatic amines by means of novel hydrogenation catalysts | Reinhard Langer, Hans-Josef Buysch, Joerg-Dietrich Jentsch | 2000-06-27 |
| 6043394 | Process for producing aromatic amines by gaseous phase hydrogenation | Reinhard Langer, Hans-Josef Buysch, Burkhard Lachmann, Franz-Ulrich Von Gehlen | 2000-03-28 |
| 5931579 | Mixer-reactor and process for containing nozzles for carrying out the phosgenation of primary amines | Harald Muller, Bernd Weber | 1999-08-03 |
| 5583251 | Process for the production of isocyanates and for the production of light-colored foams therefrom | Hans-Josef Buysch, Herbert Gebauer, Otto Immel, Christine Mendoza-Frohn, Reinhard Langer | 1996-12-10 |
| 5310769 | Process for the production of polyamine mixtures of the polyamino-polyaryl-polymethylene series | Christian König, Reinhold Wullner, Franz-Moritz Richter, Rudolf Uchdorf, William C. Forester | 1994-05-10 |