Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5006566 | Preparation of foams having a high compressive strength | Reinhold Weber, Manfred Weilbacher, Hermann Tatzel, Ludwig Zuern, Hans D. Zettler | 1991-04-09 |
| 4436870 | Production of molding materials containing polyphenylene ethers | Herbert Naarmann, Adolf Echte, Eduard Heil, Albert Nikles, Rudi W. Reffert +1 more | 1984-03-13 |
| 4431794 | Continuous preparation of oxymethylene polymers | Juergen Sadlowski, Manfred Walter | 1984-02-14 |
| 4298702 | Process for the manufacture of flame retardant polystyrene foams | Klaus Hahn, Klaus Halbritter, Walter Rebafka, Heinz Weber | 1981-11-03 |