Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822787 | 3-pyrrolidinylthio-1-azabicyclo(3.2.0)-hept-2-ene-2-carboxylic acid compounds and antimicrobial activity thereof | Masayoshi Murata, Hideo Tsutsumi, Keiji Matsuda, Takashi Nakajima | 1989-04-18 |