Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4940725 | Oxindole alkaloids having properties stimulating the immunologic system and preparation containing the same | Klaus Keplinger, Hildebert Wagner | 1990-07-10 |
| 4844901 | Oxindole alkaloids having properties stimulating the immunologic system | Klaus Keplinger, Hildebert Wagner | 1989-07-04 |