Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5652244 | Method for treating cancer with water-insoluble S-camptothecin of the closed lactone ring form and derivatives thereof | Beppino C. Giovanella, Anthony J. Kozielski, John S. Stehlin | 1997-07-29 |
| 5608066 | Methods for purifying camptothecin compounds | — | 1997-03-04 |