Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822851 | Process for the preparation of cationized polyvinyl alcohol | Reinhard Stober, Ellen Kohn | 1989-04-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822851 | Process for the preparation of cationized polyvinyl alcohol | Reinhard Stober, Ellen Kohn | 1989-04-18 |