Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877803 | Bis-dioxopiperazine derivatives and pharmaceutical compositions containing the same | Muneaki Takase | 1989-10-31 |
| 4868303 | Bis-dioxopiperazine derivatives | Muneaki Takase | 1989-09-19 |
| 4650799 | Bis-dioxopiperazine derivatives, process for their preparation, antitumor agents comprising them and compositions containing them | Muneaki Takase | 1987-03-17 |