Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4828686 | Chemical conditioning of fine coal for improved flotation and pyrite rejection | Jan D. Miller | 1989-05-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4828686 | Chemical conditioning of fine coal for improved flotation and pyrite rejection | Jan D. Miller | 1989-05-09 |