Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6346609 | Cationic azo-dyes | Karl-Heinz Etzbach, Torsten Freund | 2002-02-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6346609 | Cationic azo-dyes | Karl-Heinz Etzbach, Torsten Freund | 2002-02-12 |