Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5641816 | Process for the production of polyol compounds | Johann Klein, Peter Daute, Udo Hees | 1997-06-24 |
| 5597934 | Process for production of polyol compounds | Johann Klein, Peter Daute, Udo Hees | 1997-01-28 |