Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4847435 | Process for the recovery of high-purity m-ethylphenol | Tsutomu Idai, Kazumasa Ishii, Eiji Takahashi | 1989-07-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4847435 | Process for the recovery of high-purity m-ethylphenol | Tsutomu Idai, Kazumasa Ishii, Eiji Takahashi | 1989-07-11 |