Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4459228 | Method for precipitation of sulphonated lignin from sulfide wastes | Aloys Hüttermann | 1984-07-10 |
| 4432921 | Process for producing a binder for wood materials | Aloys Hüttermann | 1984-02-21 |