Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4500320 | Use of fine-particulate alkali metal alumino-silicates in the process of dye soaping | Fritz Hahn, Ulrich Rall, Klaus Schumann, Milan J. Schwuger, Heinz Smolka | 1985-02-19 |