Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851557 | Copper-containing polymers, a process for their preparation and their use as fungicides | Guenter Claus | 1989-07-25 |
| 4828766 | Process for the preparation of vinyldiphosphonic acid and salts thereof | Werner Ehret | 1989-05-09 |