Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851518 | "Di and tri-O-acetyl-""O-iso-valeryl-23-O-demycinosyl tylosins, hydrazone derivatives thereof and processes for their preparation" | Alan K. Mallams | 1989-07-25 |
| 4808575 | 12,13-oxoderivatives of macrolides | Alan K. Mallams | 1989-02-28 |