Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4801739 | Oligomeric hydroxycarboxylic acid derivatives, their production and use | Joachim Franz, Zdenek Brich | 1989-01-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4801739 | Oligomeric hydroxycarboxylic acid derivatives, their production and use | Joachim Franz, Zdenek Brich | 1989-01-31 |