Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5714560 | Water-soluble or water-dispersible graft polymers of proteins as leather tanning agents | Walter Denzinger, Axel Kistenmacher, Heinrich Hartmann, Gerhard Wolf | 1998-02-03 |