Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7259257 | Process for producing particulate, water-soluble cellulose derivatives using a superheated gas mixture containing steam | Hartwig Schlesiger, Gunter Weber, Volker Eckhardt, Gerd Sonnenberg, Rene Kiesewetter | 2007-08-21 |
| 6943247 | Building material compositions | Rene Kiesewetter, Hartwig Schlesiger, Gunter Weber, Werner Lange | 2005-09-13 |
| 6880772 | Process and apparatus for combined milling and drying | Hartwig Schlesiger, Gerd Sonnenberg, Rudolf Heidemann | 2005-04-19 |
| 6509461 | Process for producing particulate, water-soluble cellulose derivatives | Hartwig Schlesiger, Gunter Weber, Rene Kiesewetter, Rudolf Lelgemann | 2003-01-21 |