Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4833257 | Compositions of matter and methods of using same | George R. Pettit, Yoshiaki Kamano, John E. Leet | 1989-05-23 |
| 4816444 | Cell growth inhibitory substance | George R. Pettit, Yoshiaki Kamano | 1989-03-28 |