Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5672774 | Phenol tar processing method | Arkady Samuilovich Dyckman, Alexander S. Malinovskii, Yurii I. Petrov, Leontii M. Krasnov, Andrey Vladimirovich Zinenkov +4 more | 1997-09-30 |