Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845279 | Method of preparing 4-trifluoromethyl-2-nitrobenzoic acid and novel isomer | Yoshihiko Gotoh, Toshikazu Kawai | 1989-07-04 |
| 4800282 | Apparatus and method for detecting residual organic compounds | — | 1989-01-24 |