Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4795762 | Water-swellable composition, synthesis and use thereof | Christoph Josefiak, Helmut Magerlein | 1989-01-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4795762 | Water-swellable composition, synthesis and use thereof | Christoph Josefiak, Helmut Magerlein | 1989-01-03 |