Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4927979 | Process for the preparation of p-ethylphenol | Takanori Yamagishi, Eiji Takahashi | 1990-05-22 |
| 4847435 | Process for the recovery of high-purity m-ethylphenol | Keizo Kase, Kazumasa Ishii, Eiji Takahashi | 1989-07-11 |