Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882332 | Immune suppression method employing arly-substituted naphthyridine and pyridopyrazine derivatives | Marvin Siegel | 1989-11-21 |
| 4810708 | Polycyclic quinoline, naphthyridine and pyrazinopyridine derivatives | Ashit K. Ganguly, Richard J. Friary, John H. Schwerdt, Marvin Siegel, Vera A. Seidl +1 more | 1989-03-07 |
| 4801589 | Method for suppressing the immune response | Marvin Siegel | 1989-01-31 |