Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5868973 | Process and apparatus for producing fibrets from cellulose derivatives | Heinz-Joachim Muller, Udo Holzki | 1999-02-09 |
| 5554287 | Cellulose matrix filter material | Dieter Beck, Peter P. Breitbach, Thomas Breitbach, Gerd Ritter | 1996-09-10 |