Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6140382 | Process for the preparation of isocyanates or isocyanate mixtures useful for the preparation of polyurethane foams | Manfred Gallus, Otto Immel | 2000-10-31 |
| 5599968 | Continuous process for the preparation of organic isocyanates | Robert Bankwitz, Christian K onig, Eckart Waldau | 1997-02-04 |
| 5583251 | Process for the production of isocyanates and for the production of light-colored foams therefrom | Hans-Josef Buysch, Manfred Gallus, Otto Immel, Christine Mendoza-Frohn, Reinhard Langer | 1996-12-10 |
| 5468783 | Modified aromatic polyisocyanates and their use for the production of rigid foamed materials | Pramod Gupta, Christian König | 1995-11-21 |
| 5426126 | Liquid, light-colored polyisocyanate mixtures and a process for their production | Pramod Gupta, Martin Hoppe, Rolf Wiedermann | 1995-06-20 |
| 5424386 | Modified aromatic polyisocyanates and their use for the production of rigid foamed materials | Pramod Gupta, Christian König | 1995-06-13 |
| 5028636 | Liquid polyisocyanate mixtures, a process for their preparation, and their use in the preparation of polyurethane foams | Pramod Gupta, Gerhard Heilig, Rolf Wiedermann | 1991-07-02 |