Issued Patents 1997
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5688989 | Polyurethane foams modified with nonionic surfactants | Roland Gruetzmacher, Johann Klein, Hermann Kluth, Rainer Hoefer | 1997-11-18 |
| 5645763 | Use of liquid esters as solvents for isocyanates | Johann Klein, Roland Gruetzmacher, Rainer Hoefer | 1997-07-08 |
| 5641816 | Process for the production of polyol compounds | Johann Klein, Udo Hees, Bernd Beuer | 1997-06-24 |
| 5618779 | Triglyceride-based base oil for hydraulic oils | Johann Klein, Frank Bongardt, Matthias Fies | 1997-04-08 |
| 5597934 | Process for production of polyol compounds | Johann Klein, Udo Hees, Bernd Beuer | 1997-01-28 |