Issued Patents 2004
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6835329 | Heteroaryl substituted hydroxyphenyltriazine uv-absorbers | Hanspeter Sauter, Rudolf Zink | 2004-12-28 |
| 6818205 | Use of fluorescent whitening agents | Helmut Luther, Georges Metzger | 2004-11-16 |
| 6783698 | Mixtures of fluorescent whitening agents | Hanspeter Sauter, Hans Kramer, Werner Schreiber | 2004-08-31 |
| 6730655 | Biphenyl diquaternary ammonium compounds | Dietmar Ochs, Hanspeter Sauter, Fernand Hoffstetter | 2004-05-04 |
| 6719922 | Mixtures of fluorescent whitening agents | Hanspeter Sauter, Hans Kramer, Werner Schreiber | 2004-04-13 |
| 6706930 | Process for the preparation of halogenated hydroxydiphenyl compounds | Armando Di Teodoro, Werner Hölzl, Rudolf Zink | 2004-03-16 |