Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6649798 | Method for production of diaminodiphenylmethanes | Dirk Grotjohann, Christine Mendoza-Frohn, Daniel Koch, Heinz Muller, Hans-Georg Pirkl +2 more | 2003-11-18 |
| 6531625 | Cinnamic esters | Walter Kuhn, Gerhard Braun | 2003-03-11 |