Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6464735 | Fluorescent whitening agents | Georges Metzger, Dieter Reinehr | 2002-10-15 |
| 6464832 | Method for optically brightening paper | Thomas Engelhardt | 2002-10-15 |
| 6458169 | Fluorescent whitening agents | Georges Metzger, Dieter Reinehr | 2002-10-01 |
| 6365737 | Process for the preparation of stilbene compounds | Georges Metzger, Fabienne Cuesta, Dieter Reinehr, Rene Schlatter | 2002-04-02 |