Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861775 | Pharmacological use of phenoxazinones | Axel Zeeck, Susanne Grabley, Hartmut Voelskow, Gerhard Seibert | 1989-08-29 |
| 4861796 | Gentisic acid derivatives having antibiotic activity | Axel Zeeck, Susanne Grabley, Hartmut Voelskow, Gerhard Seibert | 1989-08-29 |