Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5378260 | Two-zone countercurrent smelter system and process | James H. Cox, Richard J. Fruehan | 1995-01-03 |
| 4334925 | Combined carburization and sulfurization/desulfurization of molybdenum-rich matte | Jonathan J. Kim | 1982-06-15 |