Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6613104 | Process for preparing dyes and/or brightener formulations | Wolfgang Zarges, Erwin Bacher, Detlef Szeymies | 2003-09-02 |
| 6596864 | Stilbene brightener | Uwe Vogt, Thomas Roick, Karl-Rudolf Gassen, Ulrich Feldhues | 2003-07-22 |