Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5688989 | Polyurethane foams modified with nonionic surfactants | Peter Daute, Johann Klein, Hermann Kluth, Rainer Hoefer | 1997-11-18 |
| 5645763 | Use of liquid esters as solvents for isocyanates | Johann Klein, Peter Daute, Rainer Hoefer | 1997-07-08 |