Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820837 | 1-hydroxy-oxo-5H-pyrido(3,2-a)phenoxazine-3-carboxylic acid esters | Hideo Terayama | 1989-04-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820837 | 1-hydroxy-oxo-5H-pyrido(3,2-a)phenoxazine-3-carboxylic acid esters | Hideo Terayama | 1989-04-11 |