Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4315929 | Method of controlling the European corn borer with trewiasine | Bernard Freedman, Richard G. Powell | 1982-02-16 |
| 4313946 | Chemotherapeutically active maytansinoids from Trewia nudiflora | Richard G. Powell | 1982-02-02 |