Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861346 | Stable aqueous suspension of partial oxidation ash, slag and char containing polyethoxylated quaternary ammonium salt surfactant | Mitri S. Najjar, Louis S. Sorell | 1989-08-29 |