Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4833199 | Process for the preparation of water-soluble copolymers | Lutz Hoppe, Helmut Huhn, Eugen Reinhardt | 1989-05-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4833199 | Process for the preparation of water-soluble copolymers | Lutz Hoppe, Helmut Huhn, Eugen Reinhardt | 1989-05-23 |