Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4655896 | Apparatus for ferric ion treatment for removal of ash-forming mineral matter from coal | Roe-Hoan Yoon | 1987-04-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4655896 | Apparatus for ferric ion treatment for removal of ash-forming mineral matter from coal | Roe-Hoan Yoon | 1987-04-07 |