Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857151 | Phenol purification | Ali M. Khonsari, Jamin Chen | 1989-08-15 |
| 4851086 | Production of high purity phenol by steam distillation | Ali M. Khonsari, Jamin Chen, William B. Fisher, Lamberto Crescentini | 1989-07-25 |