Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876348 | Process for making 3-cyanopyridine | James D. Burrington, Dev D. Suresh | 1989-10-24 |
| 4861911 | Process for oxidation of benzene to phenol precursor | Hsiao-Chiung Szabo | 1989-08-29 |