Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822788 | 1-sulfo-2-oxozetidine derivatives and their product ion | Shoji Kishimoto, Taisuke Matsuo | 1989-04-18 |
| 4822790 | 1-Sulfo-2-oxoazetidine derivatives and their production | Taisuke Matsuo | 1989-04-18 |